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#define  XC_LDA_X                         1  /*Exchange                                                              */
#define  XC_LDA_C_WIGNER                  2  /*Wigner parametrization                                                */
#define  XC_LDA_C_RPA                     3  /*Random Phase Approximation                                            */
#define  XC_LDA_C_HL                      4  /*Hedin & Lundqvist                                                     */
#define  XC_LDA_C_GL                      5  /*Gunnarson & Lundqvist                                                 */
#define  XC_LDA_C_XALPHA                  6  /*Slater Xalpha                                                         */
#define  XC_LDA_C_VWN                     7  /*Vosko, Wilk, & Nusair (5)                                             */
#define  XC_LDA_C_VWN_RPA                 8  /*Vosko, Wilk, & Nusair (RPA)                                           */
#define  XC_LDA_C_PZ                      9  /*Perdew & Zunger                                                       */
#define  XC_LDA_C_PZ_MOD                 10  /*Perdew & Zunger (Modified)                                            */
#define  XC_LDA_C_OB_PZ                  11  /*Ortiz & Ballone (PZ)                                                  */
#define  XC_LDA_C_PW                     12  /*Perdew & Wang                                                         */
#define  XC_LDA_C_PW_MOD                 13  /*Perdew & Wang (Modified)                                              */
#define  XC_LDA_C_OB_PW                  14  /*Ortiz & Ballone (PW)                                                  */
#define  XC_LDA_C_2D_AMGB                15  /*Attaccalite et al                                                     */
#define  XC_LDA_C_2D_PRM                 16  /*Pittalis, Rasanen & Marques correlation in 2D                         */
#define  XC_LDA_C_vBH                    17  /*von Barth & Hedin                                                     */
#define  XC_LDA_C_1D_CSC                 18  /*Casula, Sorella, and Senatore 1D correlation                          */
#define  XC_LDA_X_2D                     19  /*Exchange in 2D                                                        */
#define  XC_LDA_XC_TETER93               20  /*Teter 93 parametrization                                              */
#define  XC_LDA_X_1D                     21  /*Exchange in 1D                                                        */
#define  XC_LDA_C_ML1                    22  /*Modified LSD (version 1) of Proynov and Salahub                       */
#define  XC_LDA_C_ML2                    23  /*Modified LSD (version 2) of Proynov and Salahub                       */
#define  XC_LDA_C_GOMBAS                 24  /*Gombas parametrization                                                */
#define  XC_LDA_C_PW_RPA                 25  /*Perdew & Wang fit of the RPA                                          */
#define  XC_LDA_C_1D_LOOS                26  /*P-F Loos correlation LDA                                              */
#define  XC_LDA_C_RC04                   27  /*Ragot-Cortona                                                         */
#define  XC_LDA_C_VWN_1                  28  /*Vosko, Wilk, & Nusair (1)                                             */
#define  XC_LDA_C_VWN_2                  29  /*Vosko, Wilk, & Nusair (2)                                             */
#define  XC_LDA_C_VWN_3                  30  /*Vosko, Wilk, & Nusair (3)                                             */
#define  XC_LDA_C_VWN_4                  31  /*Vosko, Wilk, & Nusair (4)                                             */
#define  XC_LDA_XC_ZLP                   43  /*Zhao, Levy & Parr, Eq. (20)                                           */
#define  XC_LDA_K_TF                     50  /*Thomas-Fermi kinetic energy functional                                */
#define  XC_LDA_K_LP                     51  /*Lee and Parr Gaussian ansatz                                          */
#define  XC_LDA_XC_KSDT                 259  /*Karasiev et al. parametrization                                       */
#define  XC_GGA_X_GAM                    32  /*GAM functional from Minnesota                                         */
#define  XC_GGA_C_GAM                    33  /*GAM functional from Minnesota                                         */
#define  XC_GGA_X_HCTH_A                 34  /*HCTH-A                                                                */
#define  XC_GGA_X_EV93                   35  /*Engel and Vosko                                                       */
#define  XC_GGA_X_BGCP                   38  /*Burke, Cancio, Gould, and Pittalis                                    */
#define  XC_GGA_C_BGCP                   39  /*Burke, Cancio, Gould, and Pittalis                                    */
#define  XC_GGA_X_LAMBDA_OC2_N           40  /*lambda_OC2(N) version of PBE                                          */
#define  XC_GGA_X_B86_R                  41  /*Revised Becke 86 Xalpha,beta,gamma (with mod. grad. correction)       */
#define  XC_GGA_X_LAMBDA_CH_N            44  /*lambda_CH(N) version of PBE                                           */
#define  XC_GGA_X_LAMBDA_LO_N            45  /*lambda_LO(N) version of PBE                                           */
#define  XC_GGA_X_HJS_B88_V2             46  /*HJS screened exchange corrected B88 version                           */
#define  XC_GGA_C_Q2D                    47  /*Chiodo et al                                                          */
#define  XC_GGA_X_Q2D                    48  /*Chiodo et al                                                          */
#define  XC_GGA_X_PBE_MOL                49  /*Del Campo, Gazquez, Trickey and Vela (PBE-like)                       */
#define  XC_GGA_K_TFVW                   52  /*Thomas-Fermi plus von Weiszaecker correction                          */
#define  XC_GGA_K_REVAPBEINT             53  /*interpolated version of REVAPBE                                       */
#define  XC_GGA_K_APBEINT                54  /*interpolated version of APBE                                          */
#define  XC_GGA_K_REVAPBE                55  /*revised APBE                                                          */
#define  XC_GGA_X_AK13                   56  /*Armiento & Kuemmel 2013                                               */
#define  XC_GGA_K_MEYER                  57  /*Meyer,  Wang, and Young                                               */
#define  XC_GGA_X_LV_RPW86               58  /*Berland and Hyldgaard                                                 */
#define  XC_GGA_X_PBE_TCA                59  /*PBE revised by Tognetti et al                                         */
#define  XC_GGA_X_PBEINT                 60  /*PBE for hybrid interfaces                                             */
#define  XC_GGA_C_ZPBEINT                61  /*spin-dependent gradient correction to PBEint                          */
#define  XC_GGA_C_PBEINT                 62  /*PBE for hybrid interfaces                                             */
#define  XC_GGA_C_ZPBESOL                63  /*spin-dependent gradient correction to PBEsol                          */
#define  XC_GGA_XC_OPBE_D                65  /*oPBE_D functional of Goerigk and Grimme                               */
#define  XC_GGA_XC_OPWLYP_D              66  /*oPWLYP-D functional of Goerigk and Grimme                             */
#define  XC_GGA_XC_OBLYP_D               67  /*oBLYP-D functional of Goerigk and Grimme                              */
#define  XC_GGA_X_VMT84_GE               68  /*VMT{8,4} with constraint satisfaction with mu = mu_GE                 */
#define  XC_GGA_X_VMT84_PBE              69  /*VMT{8,4} with constraint satisfaction with mu = mu_PBE                */
#define  XC_GGA_X_VMT_GE                 70  /*Vela, Medel, and Trickey with mu = mu_GE                              */
#define  XC_GGA_X_VMT_PBE                71  /*Vela, Medel, and Trickey with mu = mu_PBE                             */
#define  XC_GGA_C_N12_SX                 79  /*N12-SX functional from Minnesota                                      */
#define  XC_GGA_C_N12                    80  /*N12 functional from Minnesota                                         */
#define  XC_GGA_X_N12                    82  /*N12 functional from Minnesota                                         */
#define  XC_GGA_C_REGTPSS                83  /*Regularized TPSS correlation (ex-VPBE)                                */
#define  XC_GGA_C_OP_XALPHA              84  /*one-parameter progressive functional (XALPHA version)                 */
#define  XC_GGA_C_OP_G96                 85  /*one-parameter progressive functional (G96 version)                    */
#define  XC_GGA_C_OP_PBE                 86  /*one-parameter progressive functional (PBE version)                    */
#define  XC_GGA_C_OP_B88                 87  /*one-parameter progressive functional (B88 version)                    */
#define  XC_GGA_C_FT97                   88  /*Filatov & Thiel correlation                                           */
#define  XC_GGA_C_SPBE                   89  /*PBE correlation to be used with the SSB exchange                      */
#define  XC_GGA_X_SSB_SW                 90  /*Swarta, Sola and Bickelhaupt correction to PBE                        */
#define  XC_GGA_X_SSB                    91  /*Swarta, Sola and Bickelhaupt                                          */
#define  XC_GGA_X_SSB_D                  92  /*Swarta, Sola and Bickelhaupt dispersion                               */
#define  XC_GGA_XC_HCTH_407P             93  /*HCTH/407+                                                             */
#define  XC_GGA_XC_HCTH_P76              94  /*HCTH p=7/6                                                            */
#define  XC_GGA_XC_HCTH_P14              95  /*HCTH p=1/4                                                            */
#define  XC_GGA_XC_B97_GGA1              96  /*Becke 97 GGA-1                                                        */
#define  XC_GGA_C_HCTH_A                 97  /*HCTH-A                                                                */
#define  XC_GGA_X_BPCCAC                 98  /*BPCCAC (GRAC for the energy)                                          */
#define  XC_GGA_C_REVTCA                 99  /*Tognetti, Cortona, Adamo (revised)                                    */
#define  XC_GGA_C_TCA                   100  /*Tognetti, Cortona, Adamo                                              */
#define  XC_GGA_X_PBE                   101  /*Perdew, Burke & Ernzerhof exchange                                    */
#define  XC_GGA_X_PBE_R                 102  /*Perdew, Burke & Ernzerhof exchange (revised)                          */
#define  XC_GGA_X_B86                   103  /*Becke 86 Xalpha,beta,gamma                                            */
#define  XC_GGA_X_HERMAN                104  /*Herman et al original GGA                                             */
#define  XC_GGA_X_B86_MGC               105  /*Becke 86 Xalpha,beta,gamma (with mod. grad. correction)               */
#define  XC_GGA_X_B88                   106  /*Becke 88                                                              */
#define  XC_GGA_X_G96                   107  /*Gill 96                                                               */
#define  XC_GGA_X_PW86                  108  /*Perdew & Wang 86                                                      */
#define  XC_GGA_X_PW91                  109  /*Perdew & Wang 91                                                      */
#define  XC_GGA_X_OPTX                  110  /*Handy & Cohen OPTX 01                                                 */
#define  XC_GGA_X_DK87_R1               111  /*dePristo & Kress 87 (version R1)                                      */
#define  XC_GGA_X_DK87_R2               112  /*dePristo & Kress 87 (version R2)                                      */
#define  XC_GGA_X_LG93                  113  /*Lacks & Gordon 93                                                     */
#define  XC_GGA_X_FT97_A                114  /*Filatov & Thiel 97 (version A)                                        */
#define  XC_GGA_X_FT97_B                115  /*Filatov & Thiel 97 (version B)                                        */
#define  XC_GGA_X_PBE_SOL               116  /*Perdew, Burke & Ernzerhof exchange (solids)                           */
#define  XC_GGA_X_RPBE                  117  /*Hammer, Hansen & Norskov (PBE-like)                                   */
#define  XC_GGA_X_WC                    118  /*Wu & Cohen                                                            */
#define  XC_GGA_X_MPW91                 119  /*Modified form of PW91 by Adamo & Barone                               */
#define  XC_GGA_X_AM05                  120  /*Armiento & Mattsson 05 exchange                                       */
#define  XC_GGA_X_PBEA                  121  /*Madsen (PBE-like)                                                     */
#define  XC_GGA_X_MPBE                  122  /*Adamo & Barone modification to PBE                                    */
#define  XC_GGA_X_XPBE                  123  /*xPBE reparametrization by Xu & Goddard                                */
#define  XC_GGA_X_2D_B86_MGC            124  /*Becke 86 MGC for 2D systems                                           */
#define  XC_GGA_X_BAYESIAN              125  /*Bayesian best fit for the enhancement factor                          */
#define  XC_GGA_X_PBE_JSJR              126  /*JSJR reparametrization by Pedroza, Silva & Capelle                    */
#define  XC_GGA_X_2D_B88                127  /*Becke 88 in 2D                                                        */
#define  XC_GGA_X_2D_B86                128  /*Becke 86 Xalpha,beta,gamma                                            */
#define  XC_GGA_X_2D_PBE                129  /*Perdew, Burke & Ernzerhof exchange in 2D                              */
#define  XC_GGA_C_PBE                   130  /*Perdew, Burke & Ernzerhof correlation                                 */
#define  XC_GGA_C_LYP                   131  /*Lee, Yang & Parr                                                      */
#define  XC_GGA_C_P86                   132  /*Perdew 86                                                             */
#define  XC_GGA_C_PBE_SOL               133  /*Perdew, Burke & Ernzerhof correlation SOL                             */
#define  XC_GGA_C_PW91                  134  /*Perdew & Wang 91                                                      */
#define  XC_GGA_C_AM05                  135  /*Armiento & Mattsson 05 correlation                                    */
#define  XC_GGA_C_XPBE                  136  /*xPBE reparametrization by Xu & Goddard                                */
#define  XC_GGA_C_LM                    137  /*Langreth and Mehl correlation                                         */
#define  XC_GGA_C_PBE_JRGX              138  /*JRGX reparametrization by Pedroza, Silva & Capelle                    */
#define  XC_GGA_X_OPTB88_VDW            139  /*Becke 88 reoptimized to be used with vdW functional of Dion et al     */
#define  XC_GGA_X_PBEK1_VDW             140  /*PBE reparametrization for vdW                                         */
#define  XC_GGA_X_OPTPBE_VDW            141  /*PBE reparametrization for vdW                                         */
#define  XC_GGA_X_RGE2                  142  /*Regularized PBE                                                       */
#define  XC_GGA_C_RGE2                  143  /*Regularized PBE                                                       */
#define  XC_GGA_X_RPW86                 144  /*refitted Perdew & Wang 86                                             */
#define  XC_GGA_X_KT1                   145  /*Keal and Tozer version 1                                              */
#define  XC_GGA_XC_KT2                  146  /*Keal and Tozer version 2                                              */
#define  XC_GGA_C_WL                    147  /*Wilson & Levy                                                         */
#define  XC_GGA_C_WI                    148  /*Wilson & Ivanov                                                       */
#define  XC_GGA_X_MB88                  149  /*Modified Becke 88 for proton transfer                                 */
#define  XC_GGA_X_SOGGA                 150  /*Second-order generalized gradient approximation                       */
#define  XC_GGA_X_SOGGA11               151  /*Second-order generalized gradient approximation 2011                  */
#define  XC_GGA_C_SOGGA11               152  /*Second-order generalized gradient approximation 2011                  */
#define  XC_GGA_C_WI0                   153  /*Wilson & Ivanov initial version                                       */
#define  XC_GGA_XC_TH1                  154  /*Tozer and Handy v. 1                                                  */
#define  XC_GGA_XC_TH2                  155  /*Tozer and Handy v. 2                                                  */
#define  XC_GGA_XC_TH3                  156  /*Tozer and Handy v. 3                                                  */
#define  XC_GGA_XC_TH4                  157  /*Tozer and Handy v. 4                                                  */
#define  XC_GGA_X_C09X                  158  /*C09x to be used with the VdW of Rutgers-Chalmers                      */
#define  XC_GGA_C_SOGGA11_X             159  /*To be used with HYB_GGA_X_SOGGA11_X                                   */
#define  XC_GGA_X_LB                    160  /*van Leeuwen & Baerends                                                */
#define  XC_GGA_XC_HCTH_93              161  /*HCTH functional fitted to  93 molecules                               */
#define  XC_GGA_XC_HCTH_120             162  /*HCTH functional fitted to 120 molecules                               */
#define  XC_GGA_XC_HCTH_147             163  /*HCTH functional fitted to 147 molecules                               */
#define  XC_GGA_XC_HCTH_407             164  /*HCTH functional fitted to 407 molecules                               */
#define  XC_GGA_XC_EDF1                 165  /*Empirical functionals from Adamson, Gill, and Pople                   */
#define  XC_GGA_XC_XLYP                 166  /*XLYP functional                                                       */
#define  XC_GGA_XC_B97_D                170  /*Grimme functional to be used with C6 vdW term                         */
#define  XC_GGA_XC_PBE1W                173  /*Functionals fitted for water                                          */
#define  XC_GGA_XC_MPWLYP1W             174  /*Functionals fitted for water                                          */
#define  XC_GGA_XC_PBELYP1W             175  /*Functionals fitted for water                                          */
#define  XC_GGA_X_LBM                   182  /*van Leeuwen & Baerends modified                                       */
#define  XC_GGA_X_OL2                   183  /*Exchange form based on Ou-Yang and Levy v.2                           */
#define  XC_GGA_X_APBE                  184  /*mu fixed from the semiclassical neutral atom                          */
#define  XC_GGA_K_APBE                  185  /*mu fixed from the semiclassical neutral atom                          */
#define  XC_GGA_C_APBE                  186  /*mu fixed from the semiclassical neutral atom                          */
#define  XC_GGA_K_TW1                   187  /*Tran and Wesolowski set 1 (Table II)                                  */
#define  XC_GGA_K_TW2                   188  /*Tran and Wesolowski set 2 (Table II)                                  */
#define  XC_GGA_K_TW3                   189  /*Tran and Wesolowski set 3 (Table II)                                  */
#define  XC_GGA_K_TW4                   190  /*Tran and Wesolowski set 4 (Table II)                                  */
#define  XC_GGA_X_HTBS                  191  /*Haas, Tran, Blaha, and Schwarz                                        */
#define  XC_GGA_X_AIRY                  192  /*Constantin et al based on the Airy gas                                */
#define  XC_GGA_X_LAG                   193  /*Local Airy Gas                                                        */
#define  XC_GGA_XC_MOHLYP               194  /*Functional for organometallic chemistry                               */
#define  XC_GGA_XC_MOHLYP2              195  /*Functional for barrier heights                                        */
#define  XC_GGA_XC_TH_FL                196  /*Tozer and Handy v. FL                                                 */
#define  XC_GGA_XC_TH_FC                197  /*Tozer and Handy v. FC                                                 */
#define  XC_GGA_XC_TH_FCFO              198  /*Tozer and Handy v. FCFO                                               */
#define  XC_GGA_XC_TH_FCO               199  /*Tozer and Handy v. FCO                                                */
#define  XC_GGA_C_OPTC                  200  /*Optimized correlation functional of Cohen and Handy                   */
#define  XC_GGA_C_PBELOC                246  /*Semilocal dynamical correlation                                       */
#define  XC_GGA_XC_VV10                 255  /*Vydrov and Van Voorhis                                                */
#define  XC_GGA_C_PBEFE                 258  /*PBE for formation energies                                            */
#define  XC_GGA_C_OP_PW91               262  /*one-parameter progressive functional (PW91 version)                   */
#define  XC_GGA_X_PBEFE                 265  /*PBE for formation energies                                            */
#define  XC_GGA_X_CAP                   270  /*Correct Asymptotic Potential                                          */
#define  XC_GGA_K_VW                    500  /*von Weiszaecker functional                                            */
#define  XC_GGA_K_GE2                   501  /*Second-order gradient expansion (l = 1/9)                             */
#define  XC_GGA_K_GOLDEN                502  /*TF-lambda-vW form by Golden (l = 13/45)                               */
#define  XC_GGA_K_YT65                  503  /*TF-lambda-vW form by Yonei and Tomishima (l = 1/5)                    */
#define  XC_GGA_K_BALTIN                504  /*TF-lambda-vW form by Baltin (l = 5/9)                                 */
#define  XC_GGA_K_LIEB                  505  /*TF-lambda-vW form by Lieb (l = 0.185909191)                           */
#define  XC_GGA_K_ABSP1                 506  /*gamma-TFvW form by Acharya et al [g = 1 - 1.412/N^(1/3)]              */
#define  XC_GGA_K_ABSP2                 507  /*gamma-TFvW form by Acharya et al [g = 1 - 1.332/N^(1/3)]              */
#define  XC_GGA_K_GR                    508  /*gamma-TFvW form by Gazquez and Robles                                 */
#define  XC_GGA_K_LUDENA                509  /*gamma-TFvW form by Ludena                                             */
#define  XC_GGA_K_GP85                  510  /*gamma-TFvW form by Ghosh and Parr                                     */
#define  XC_GGA_K_PEARSON               511  /*Pearson                                                               */
#define  XC_GGA_K_OL1                   512  /*Ou-Yang and Levy v.1                                                  */
#define  XC_GGA_K_OL2                   513  /*Ou-Yang and Levy v.2                                                  */
#define  XC_GGA_K_FR_B88                514  /*Fuentealba & Reyes (B88 version)                                      */
#define  XC_GGA_K_FR_PW86               515  /*Fuentealba & Reyes (PW86 version)                                     */
#define  XC_GGA_K_DK                    516  /*DePristo and Kress                                                    */
#define  XC_GGA_K_PERDEW                517  /*Perdew                                                                */
#define  XC_GGA_K_VSK                   518  /*Vitos, Skriver, and Kollar                                            */
#define  XC_GGA_K_VJKS                  519  /*Vitos, Johansson, Kollar, and Skriver                                 */
#define  XC_GGA_K_ERNZERHOF             520  /*Ernzerhof                                                             */
#define  XC_GGA_K_LC94                  521  /*Lembarki & Chermette                                                  */
#define  XC_GGA_K_LLP                   522  /*Lee, Lee & Parr                                                       */
#define  XC_GGA_K_THAKKAR               523  /*Thakkar 1992                                                          */
#define  XC_GGA_X_WPBEH                 524  /*short-range version of the PBE                                        */
#define  XC_GGA_X_HJS_PBE               525  /*HJS screened exchange PBE version                                     */
#define  XC_GGA_X_HJS_PBE_SOL           526  /*HJS screened exchange PBE_SOL version                                 */
#define  XC_GGA_X_HJS_B88               527  /*HJS screened exchange B88 version                                     */
#define  XC_GGA_X_HJS_B97X              528  /*HJS screened exchange B97x version                                    */
#define  XC_GGA_X_ITYH                  529  /*short-range recipe for exchange GGA functionals                       */
#define  XC_GGA_X_SFAT                  530  /*short-range recipe for exchange GGA functionals                       */
#define  XC_HYB_GGA_X_N12_SX             81  /*N12-SX functional from Minnesota                                      */
#define  XC_HYB_GGA_XC_B97_1p           266  /*version of B97 by Cohen and Handy                                     */
#define  XC_HYB_GGA_XC_B3PW91           401  /*The original (ACM) hybrid of Becke                                    */
#define  XC_HYB_GGA_XC_B3LYP            402  /*The (in)famous B3LYP                                                  */
#define  XC_HYB_GGA_XC_B3P86            403  /*Perdew 86 hybrid similar to B3PW91                                    */
#define  XC_HYB_GGA_XC_O3LYP            404  /*hybrid using the optx functional                                      */
#define  XC_HYB_GGA_XC_mPW1K            405  /*mixture of mPW91 and PW91 optimized for kinetics                      */
#define  XC_HYB_GGA_XC_PBEH             406  /*aka PBE0 or PBE1PBE                                                   */
#define  XC_HYB_GGA_XC_B97              407  /*Becke 97                                                              */
#define  XC_HYB_GGA_XC_B97_1            408  /*Becke 97-1                                                            */
#define  XC_HYB_GGA_XC_B97_2            410  /*Becke 97-2                                                            */
#define  XC_HYB_GGA_XC_X3LYP            411  /*hybrid by Xu and Goddard                                              */
#define  XC_HYB_GGA_XC_B1WC             412  /*Becke 1-parameter mixture of WC and PBE                               */
#define  XC_HYB_GGA_XC_B97_K            413  /*Boese-Martin for Kinetics                                             */
#define  XC_HYB_GGA_XC_B97_3            414  /*Becke 97-3                                                            */
#define  XC_HYB_GGA_XC_MPW3PW           415  /*mixture with the mPW functional                                       */
#define  XC_HYB_GGA_XC_B1LYP            416  /*Becke 1-parameter mixture of B88 and LYP                              */
#define  XC_HYB_GGA_XC_B1PW91           417  /*Becke 1-parameter mixture of B88 and PW91                             */
#define  XC_HYB_GGA_XC_mPW1PW           418  /*Becke 1-parameter mixture of mPW91 and PW91                           */
#define  XC_HYB_GGA_XC_MPW3LYP          419  /*mixture of mPW and LYP                                                */
#define  XC_HYB_GGA_XC_SB98_1a          420  /*Schmider-Becke 98 parameterization 1a                                 */
#define  XC_HYB_GGA_XC_SB98_1b          421  /*Schmider-Becke 98 parameterization 1b                                 */
#define  XC_HYB_GGA_XC_SB98_1c          422  /*Schmider-Becke 98 parameterization 1c                                 */
#define  XC_HYB_GGA_XC_SB98_2a          423  /*Schmider-Becke 98 parameterization 2a                                 */
#define  XC_HYB_GGA_XC_SB98_2b          424  /*Schmider-Becke 98 parameterization 2b                                 */
#define  XC_HYB_GGA_XC_SB98_2c          425  /*Schmider-Becke 98 parameterization 2c                                 */
#define  XC_HYB_GGA_X_SOGGA11_X         426  /*Hybrid based on SOGGA11 form                                          */
#define  XC_HYB_GGA_XC_HSE03            427  /*the 2003 version of the screened hybrid HSE                           */
#define  XC_HYB_GGA_XC_HSE06            428  /*the 2006 version of the screened hybrid HSE                           */
#define  XC_HYB_GGA_XC_HJS_PBE          429  /*HJS hybrid screened exchange PBE version                              */
#define  XC_HYB_GGA_XC_HJS_PBE_SOL      430  /*HJS hybrid screened exchange PBE_SOL version                          */
#define  XC_HYB_GGA_XC_HJS_B88          431  /*HJS hybrid screened exchange B88 version                              */
#define  XC_HYB_GGA_XC_HJS_B97X         432  /*HJS hybrid screened exchange B97x version                             */
#define  XC_HYB_GGA_XC_CAM_B3LYP        433  /*CAM version of B3LYP                                                  */
#define  XC_HYB_GGA_XC_TUNED_CAM_B3LYP  434  /*CAM version of B3LYP tuned for excitations                            */
#define  XC_HYB_GGA_XC_BHANDH           435  /*Becke half-and-half                                                   */
#define  XC_HYB_GGA_XC_BHANDHLYP        436  /*Becke half-and-half with B88 exchange                                 */
#define  XC_HYB_GGA_XC_MB3LYP_RC04      437  /*B3LYP with RC04 LDA                                                   */
#define  XC_HYB_GGA_XC_MPWLYP1M         453  /*MPW with 1 par. for metals/LYP                                        */
#define  XC_HYB_GGA_XC_REVB3LYP         454  /*Revised B3LYP                                                         */
#define  XC_HYB_GGA_XC_CAMY_BLYP        455  /*BLYP with yukawa screening                                            */
#define  XC_HYB_GGA_XC_PBE0_13          456  /*PBE0-1/3                                                              */
#define  XC_HYB_GGA_XC_B3LYPs           459  /*B3LYP* functional                                                     */
#define  XC_HYB_GGA_XC_WB97             463  /*Chai and Head-Gordon                                                  */
#define  XC_HYB_GGA_XC_WB97X            464  /*Chai and Head-Gordon                                                  */
#define  XC_HYB_GGA_XC_LRC_WPBEH        465  /*Long-range corrected functional by Rorhdanz et al                     */
#define  XC_HYB_GGA_XC_WB97X_V          466  /*Mardirossian and Head-Gordon                                          */
#define  XC_HYB_GGA_XC_LCY_PBE          467  /*PBE with yukawa screening                                             */
#define  XC_HYB_GGA_XC_LCY_BLYP         468  /*BLYP with yukawa screening                                            */
#define  XC_HYB_GGA_XC_LC_VV10          469  /*Vydrov and Van Voorhis                                                */
#define  XC_HYB_GGA_XC_CAMY_B3LYP       470  /*B3LYP with Yukawa screening                                           */
#define  XC_HYB_GGA_XC_WB97X_D          471  /*Chai and Head-Gordon                                                  */
#define  XC_HYB_GGA_XC_HPBEINT          472  /*hPBEint                                                               */
#define  XC_HYB_GGA_XC_LRC_WPBE         473  /*Long-range corrected functional by Rorhdanz et al                     */
#define  XC_HYB_GGA_XC_B3LYP5           475  /*B3LYP with VWN functional 5 instead of RPA                            */
#define  XC_HYB_GGA_XC_EDF2             476  /*Empirical functional from Lin, George and Gill                        */
#define  XC_HYB_GGA_XC_CAP0             477  /*Correct Asymptotic Potential hybrid                                   */
#define  XC_MGGA_C_DLDF                  37  /*Dispersionless Density Functional                                     */
#define  XC_MGGA_XC_ZLP                  42  /*Zhao, Levy & Parr, Eq. (21)                                           */
#define  XC_MGGA_XC_OTPSS_D              64  /*oTPSS_D functional of Goerigk and Grimme                              */
#define  XC_MGGA_C_CS                    72  /*Colle and Salvetti                                                    */
#define  XC_MGGA_C_MN12_SX               73  /*Worker for MN12-SX functional                                         */
#define  XC_MGGA_C_MN12_L                74  /*MN12-L functional from Minnesota                                      */
#define  XC_MGGA_C_M11_L                 75  /*M11-L functional from Minnesota                                       */
#define  XC_MGGA_C_M11                   76  /*Worker for M11 functional                                             */
#define  XC_MGGA_C_M08_SO                77  /*Worker for M08-SO functional                                          */
#define  XC_MGGA_C_M08_HX                78  /*Worker for M08-HX functional                                          */
#define  XC_MGGA_X_LTA                  201  /*Local tau approximation of Ernzerhof & Scuseria                       */
#define  XC_MGGA_X_TPSS                 202  /*Perdew, Tao, Staroverov & Scuseria exchange                           */
#define  XC_MGGA_X_M06_L                203  /*M06-Local functional of Minnesota                                     */
#define  XC_MGGA_X_GVT4                 204  /*GVT4 from Van Voorhis and Scuseria                                    */
#define  XC_MGGA_X_TAU_HCTH             205  /*tau-HCTH from Boese and Handy                                         */
#define  XC_MGGA_X_BR89                 206  /*Becke-Roussel 89                                                      */
#define  XC_MGGA_X_BJ06                 207  /*Becke & Johnson correction to Becke-Roussel 89                        */
#define  XC_MGGA_X_TB09                 208  /*Tran & Blaha correction to Becke & Johnson                            */
#define  XC_MGGA_X_RPP09                209  /*Rasanen, Pittalis, and Proetto correction to Becke & Johnson          */
#define  XC_MGGA_X_2D_PRHG07            210  /*Pittalis, Rasanen, Helbig, Gross Exchange Functional                  */
#define  XC_MGGA_X_2D_PRHG07_PRP10      211  /*PRGH07 with PRP10 correction                                          */
#define  XC_MGGA_X_REVTPSS              212  /*revised Perdew, Tao, Staroverov & Scuseria exchange                   */
#define  XC_MGGA_X_PKZB                 213  /*Perdew, Kurth, Zupan, and Blaha                                       */
#define  XC_MGGA_X_M05                  214  /*Worker for M05 functional                                             */
#define  XC_MGGA_X_M05_2X               215  /*Worker for M05-2X functional                                          */
#define  XC_MGGA_X_M06_HF               216  /*Worker for M06-HF functional                                          */
#define  XC_MGGA_X_M06                  217  /*Worker for M06 functional                                             */
#define  XC_MGGA_X_M06_2X               218  /*Worker for M06-2X functional                                          */
#define  XC_MGGA_X_M08_HX               219  /*Worker for M08-HX functional                                          */
#define  XC_MGGA_X_M08_SO               220  /*Worker for M08-SO functional                                          */
#define  XC_MGGA_X_MS0                  221  /*MS exchange of Sun, Xiao, and Ruzsinszky                              */
#define  XC_MGGA_X_MS1                  222  /*MS1 exchange of Sun, et al                                            */
#define  XC_MGGA_X_MS2                  223  /*MS2 exchange of Sun, et al                                            */
#define  XC_MGGA_X_M11                  225  /*Worker for M11 functional                                             */
#define  XC_MGGA_X_M11_L                226  /*M11-L functional from Minnesota                                       */
#define  XC_MGGA_X_MN12_L               227  /*MN12-L functional from Minnesota                                      */
#define  XC_MGGA_C_CC06                 229  /*Cancio and Chou 2006                                                  */
#define  XC_MGGA_X_MK00                 230  /*Exchange for accurate virtual orbital energies                        */
#define  XC_MGGA_C_TPSS                 231  /*Perdew, Tao, Staroverov & Scuseria correlation                        */
#define  XC_MGGA_C_VSXC                 232  /*VSxc from Van Voorhis and Scuseria (correlation part)                 */
#define  XC_MGGA_C_M06_L                233  /*M06-Local functional from Minnesota                                   */
#define  XC_MGGA_C_M06_HF               234  /*Worker for M06-HF functional                                          */
#define  XC_MGGA_C_M06                  235  /*Worker for M06 functional                                             */
#define  XC_MGGA_C_M06_2X               236  /*Worker for M06-2X functional                                          */
#define  XC_MGGA_C_M05                  237  /*Worker for M05 functional                                             */
#define  XC_MGGA_C_M05_2X               238  /*Worker for M05-2X functional                                          */
#define  XC_MGGA_C_PKZB                 239  /*Perdew, Kurth, Zupan, and Blaha                                       */
#define  XC_MGGA_C_BC95                 240  /*Becke correlation 95                                                  */
#define  XC_MGGA_C_REVTPSS              241  /*revised TPSS correlation                                              */
#define  XC_MGGA_XC_TPSSLYP1W           242  /*Functionals fitted for water                                          */
#define  XC_MGGA_X_MK00B                243  /*Exchange for accurate virtual orbital energies (v. B)                 */
#define  XC_MGGA_X_BLOC                 244  /*functional with balanced localization                                 */
#define  XC_MGGA_X_MODTPSS              245  /*Modified Perdew, Tao, Staroverov & Scuseria exchange                  */
#define  XC_MGGA_C_TPSSLOC              247  /*Semilocal dynamical correlation                                       */
#define  XC_MGGA_X_MBEEF                249  /*mBEEF exchange                                                        */
#define  XC_MGGA_X_MBEEFVDW             250  /*mBEEF-vdW exchange                                                    */
#define  XC_MGGA_XC_B97M_V              254  /*Mardirossian and Head-Gordon                                          */
#define  XC_MGGA_X_MVS                  257  /*MVS exchange of Sun, Perdew, and Ruzsinszky                           */
#define  XC_MGGA_X_MN15_L               260  /*MN15-L functional from Minnesota                                      */
#define  XC_MGGA_C_MN15_L               261  /*MN15-L functional from Minnesota                                      */
#define  XC_MGGA_X_SCAN                 263  /*SCAN exchange of Sun, Ruzsinszky, and Perdew                          */
#define  XC_MGGA_C_SCAN                 267  /*SCAN correlation                                                      */
#define  XC_MGGA_C_MN15                 269  /*MN15 functional from Minnesota                                        */
#define  XC_HYB_MGGA_X_DLDF              36  /*Dispersionless Density Functional                                     */
#define  XC_HYB_MGGA_X_MS2H             224  /*MS2 hybrid exchange of Sun, et al                                     */
#define  XC_HYB_MGGA_X_MN12_SX          248  /*MN12-SX hybrid functional from Minnesota                              */
#define  XC_HYB_MGGA_X_SCAN0            264  /*SCAN hybrid                                                           */
#define  XC_HYB_MGGA_X_MN15             268  /*MN15 functional from Minnesota                                        */
#define  XC_HYB_MGGA_XC_M05             438  /*M05 functional from Minnesota                                         */
#define  XC_HYB_MGGA_XC_M05_2X          439  /*M05-2X functional from Minnesota                                      */
#define  XC_HYB_MGGA_XC_B88B95          440  /*Mixture of B88 with BC95 (B1B95)                                      */
#define  XC_HYB_MGGA_XC_B86B95          441  /*Mixture of B86 with BC95                                              */
#define  XC_HYB_MGGA_XC_PW86B95         442  /*Mixture of PW86 with BC95                                             */
#define  XC_HYB_MGGA_XC_BB1K            443  /*Mixture of B88 with BC95 from Zhao and Truhlar                        */
#define  XC_HYB_MGGA_XC_M06_HF          444  /*M06-HF functional from Minnesota                                      */
#define  XC_HYB_MGGA_XC_MPW1B95         445  /*Mixture of mPW91 with BC95 from Zhao and Truhlar                      */
#define  XC_HYB_MGGA_XC_MPWB1K          446  /*Mixture of mPW91 with BC95 for kinetics                               */
#define  XC_HYB_MGGA_XC_X1B95           447  /*Mixture of X with BC95                                                */
#define  XC_HYB_MGGA_XC_XB1K            448  /*Mixture of X with BC95 for kinetics                                   */
#define  XC_HYB_MGGA_XC_M06             449  /*M06 functional from Minnesota                                         */
#define  XC_HYB_MGGA_XC_M06_2X          450  /*M06-2X functional from Minnesota                                      */
#define  XC_HYB_MGGA_XC_PW6B95          451  /*Mixture of PW91 with BC95 from Zhao and Truhlar                       */
#define  XC_HYB_MGGA_XC_PWB6K           452  /*Mixture of PW91 with BC95 from Zhao and Truhlar for kinetics          */
#define  XC_HYB_MGGA_XC_TPSSH           457  /*TPSS hybrid                                                           */
#define  XC_HYB_MGGA_XC_REVTPSSH        458  /*revTPSS hybrid                                                        */
#define  XC_HYB_MGGA_XC_M08_HX          460  /*M08-HX functional from Minnesota                                      */
#define  XC_HYB_MGGA_XC_M08_SO          461  /*M08-SO functional from Minnesota                                      */
#define  XC_HYB_MGGA_XC_M11             462  /*M11    functional from Minnesota                                      */
#define  XC_HYB_MGGA_X_MVSH             474  /*MVS hybrid                                                            */
#define  XC_HYB_MGGA_XC_WB97M_V         531  /*Mardirossian and Head-Gordon                                          */