/usr/share/avogadro/crystals/zeolites/SFE.cif is in avogadro-data 1.2.0-3.
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#**************************************************************************
#
# CIF taken from the IZA-SC Database of Zeolite Structures
# Ch. Baerlocher and L.B. McCusker
# Database of Zeolite Structures: http://www.iza-structure.org/databases/
#
# All data on this site have been placed in the public domain.
# If you use this work in a scientific publication, you are obligated to
# cite its origin.
#
# The atom coordinates and the cell parameters were optimized with DLS76
# assuming a pure SiO2 composition.
#
#**************************************************************************
_cell_length_a 11.4570(0)
_cell_length_b 5.2550(0)
_cell_length_c 13.9940(0)
_cell_angle_alpha 90.0000(0)
_cell_angle_beta 100.9600(0)
_cell_angle_gamma 90.0000(0)
_symmetry_space_group_name_H-M 'P 21/m'
_symmetry_Int_Tables_number 11
_symmetry_cell_setting monoclinic
loop_
_symmetry_equiv_pos_as_xyz
'+x,+y,+z'
'-x,1/2+y,-z'
'-x,-y,-z'
'+x,1/2-y,+z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1 O 0.2847 0.2500 0.3040
O2 O 0.3056 0.5000 0.1455
O3 O 0.1087 0.2500 0.1536
O4 O 0.3674 0.2500 0.4940
O5 O 0.4792 0.0000 0.3757
O6 O 0.3475 0.2500 0.6794
O7 O 0.6564 0.2500 0.0081
O8 O 0.4940 0.2500 0.8485
O9 O 0.2915 0.5001 0.8265
O10 O 0.8757 0.2500 0.1090
O11 O 0.0000 0.0000 0.0000
T1 Si 0.2512 0.2500 0.1869
T2 Si 0.4024 0.2500 0.3878
T3 Si 0.4387 0.2500 0.6049
T4 Si 0.6347 0.2500 0.8910
T5 Si 0.3564 0.2500 0.7957
T6 Si 0.7370 0.2500 0.1156
T7 Si 0.9958 0.2500 0.0653
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