/usr/share/avogadro/crystals/zeolites/APD.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 8.7240(0)
_cell_length_b 20.0600(0)
_cell_length_c 10.1660(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 c a'
_symmetry_Int_Tables_number 64
_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,1/2-y,1/2+z'
'1/2+x,-y,1/2+z'
'-x,1/2-y,1/2+z'
'1/2-x,-y,1/2+z'
'-x,-y,-z'
'1/2-x,1/2-y,-z'
'+x,-y,-z'
'1/2+x,1/2-y,-z'
'-x,1/2+y,1/2-z'
'1/2-x,+y,1/2-z'
'+x,1/2+y,1/2-z'
'1/2+x,+y,1/2-z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1 O 0.2137 0.0000 0.0000
O2 O 0.0000 0.0673 0.8742
O3 O 0.2500 0.0302 0.7500
O4 O 0.2634 0.1240 0.9299
O5 O 0.5000 0.2027 0.8906
O6 O 0.2500 0.2180 0.7500
O7 O 0.2500 0.2500 0.0000
T1 Si 0.1815 0.0552 0.8886
T2 Si 0.3160 0.1986 0.8927
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