/usr/share/avogadro/crystals/zeolites/WEN.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 13.5870(0)
_cell_length_b 13.5870(0)
_cell_length_c 7.5570(0)
_cell_angle_alpha 90.0000(0)
_cell_angle_beta 90.0000(0)
_cell_angle_gamma 120.0000(0)
_symmetry_space_group_name_H-M 'P -6 2 m'
_symmetry_Int_Tables_number 189
_symmetry_cell_setting hexagonal
loop_
_symmetry_equiv_pos_as_xyz
'+x,+y,+z'
'-y,+x-y,+z'
'-x+y,-x,+z'
'+x,+y,-z'
'-y,+x-y,-z'
'-x+y,-x,-z'
'+y,+x,-z'
'+x-y,-y,-z'
'-x,-x+y,-z'
'+y,+x,+z'
'+x-y,-y,+z'
'-x,-x+y,+z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1 O 0.2999 0.1468 0.0000
O2 O 0.3693 0.2112 0.3260
O3 O 0.2122 0.0000 0.2610
O4 O 0.1643 0.1643 0.2303
O5 O 0.3871 0.3871 0.5000
O6 O 0.5567 0.3463 0.5000
T1 Si 0.2613 0.1306 0.2043
T2 Si 0.4204 0.2889 0.5000
T3 Si 0.6667 0.3333 0.5000
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