/usr/share/avogadro/crystals/zeolites/MTF.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 9.6290(0)
_cell_length_b 30.3940(0)
_cell_length_c 7.2490(0)
_cell_angle_alpha 90.0000(0)
_cell_angle_beta 90.4500(0)
_cell_angle_gamma 90.0000(0)
_symmetry_space_group_name_H-M 'C 2/m'
_symmetry_Int_Tables_number 12
_symmetry_cell_setting monoclinic
loop_
_symmetry_equiv_pos_as_xyz
'+x,+y,+z'
'1/2+x,1/2+y,+z'
'-x,+y,-z'
'1/2-x,1/2+y,-z'
'-x,-y,-z'
'1/2-x,1/2-y,-z'
'+x,-y,+z'
'1/2+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 0.2723 0.1441 0.1397
O2 O 0.0472 0.1861 0.2399
O3 O 0.2673 0.1856 0.4571
O4 O 0.1190 0.1135 0.4109
O5 O 0.0000 0.3890 0.0000
O6 O 0.1649 0.3405 0.2077
O7 O 0.2420 0.4196 0.1056
O8 O 0.1585 0.0000 0.9193
O9 O 0.0000 0.0676 0.0000
O10 O 0.0692 0.0526 0.6568
O11 O 0.0529 0.2690 0.3450
O12 O 0.3153 0.2689 0.2551
O13 O 0.0000 0.2492 0.0000
T1 Si 0.1220 0.0503 0.8678
T2 Si 0.1767 0.1572 0.3123
T3 Si 0.1590 0.3760 0.0433
T4 Si 0.1918 0.2985 0.3379
T5 Si 0.9785 0.2339 0.2104
T6 Si 0.0000 0.0833 0.5000
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