/usr/share/avogadro/crystals/zeolites/IWR.cif is in avogadro-data 1.2.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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 21.2330(0)
_cell_length_b 13.3020(0)
_cell_length_c 12.6760(0)
_cell_angle_alpha 90.0000(0)
_cell_angle_beta 90.0000(0)
_cell_angle_gamma 90.0000(0)
_symmetry_space_group_name_H-M 'C m m m'
_symmetry_Int_Tables_number 65
_symmetry_cell_setting orthorhombic
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'
'-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 0.0990 0.1723 0.1037
O2 O 0.0000 0.1100 0.0000
O3 O 0.1022 0.0000 0.0000
O4 O 0.0913 0.1268 0.5000
O5 O 0.0795 0.0000 0.3423
O6 O 0.1181 0.1847 0.3075
O7 O 0.0000 0.1503 0.3618
O8 O 0.2100 0.1263 0.1812
O9 O 0.1722 0.3143 0.1788
O10 O 0.2994 0.0000 0.1262
O11 O 0.2689 0.1491 0.0000
T1 Si 0.0720 0.1156 0.3777
T2 Si 0.1500 0.1994 0.1933
T3 Si 0.2765 0.1153 0.1213
T4 Si 0.0756 0.1135 0.0000
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