data_4124124
_publ_section_title
;
 Isomorphism of anhydrous tetrahedral halides and silicon chalcogenides:
 energy landscape of crystalline Be F2, Be Cl3, Si O2, and Si S2
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11082
_journal_page_last               11087
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'Be Cl2'
_chemical_name_systematic        'Be Cl2'
_space_group_IT_number           218
_symmetry_space_group_name_Hall  'P -4n 2 3'
_symmetry_space_group_name_H-M   'P -4 3 n'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            12
_cell_length_a                   9.845269
_cell_length_b                   9.845269
_cell_length_c                   9.845269
_cell_volume                     954.295
_citation_journal_id_ASTM        JACSAT
_cod_data_source_file            Zwijnenburg_JACSAT_2008_1554.cif
_cod_data_source_block           Be1Cl2
_cod_original_cell_volume        954.2953
_cod_chemical_formula_sum_orig   'Be1 Cl2'
_cod_database_code               4124124
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
y+1/2,-x+1/2,-z+1/2
-x,-y,z
-y+1/2,x+1/2,-z+1/2
x,-y,-z
-y+1/2,-x+1/2,z+1/2
-x,y,-z
y+1/2,x+1/2,z+1/2
z,x,y
x+1/2,-z+1/2,-y+1/2
-z,-x,y
-x+1/2,z+1/2,-y+1/2
z,-x,-y
-x+1/2,-z+1/2,y+1/2
-z,x,-y
x+1/2,z+1/2,y+1/2
y,z,x
y,-z,-x
-z+1/2,-y+1/2,x+1/2
-y,z,-x
z+1/2,y+1/2,x+1/2
-y,-z,x
-z+1/2,y+1/2,-x+1/2
z+1/2,-y+1/2,-x+1/2
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Be1 Be+2 0.25 0.5 0 1 0.0
Cl1 Cl-1 0.134415 0.134415 0.072538 1 0.0
Be2 Be+2 0.25 0 0.5 1 0.0
