#------------------------------------------------------------------------------
#$Date: 2015-07-07 14:55:39 +0200 (mar 07 de jul de 2015) $
#$Revision: 140796 $
#$URL: svn://www.crystallography.net/cod/cif/1/52/11/1521140.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1521140
loop_
_publ_author_name
'Hemmersbach, S.'
'Zibrowius, B.'
'Ruschewitz, U.'
_publ_section_title
;
 Na2 C2 und K2 C2: Synthese, Kristallstruktur und spektroskopische
 Eigenschaften
;
_journal_name_full
'Zeitschrift fuer Anorganische und Allgemeine Chemie'
_journal_page_first              1440
_journal_page_last               1446
_journal_volume                  625
_journal_year                    1999
_chemical_formula_sum            'C2 Na2'
_chemical_name_systematic        'Na2 C2'
_space_group_IT_number           142
_symmetry_space_group_name_Hall  '-I 4bd 2c'
_symmetry_space_group_name_H-M   'I 41/a c d :2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   6.778
_cell_length_b                   6.778
_cell_length_c                   12.74
_cell_volume                     585.292
_citation_journal_id_ASTM        ZAACAB
_cod_data_source_file            Hemmersbach_ZAACAB_1999_801.cif
_cod_data_source_block           C2Na2
_cod_original_cell_volume        585.2919
_cod_database_code               1521140
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y+1/4,x+3/4,z+1/4
-x+1/2,-y,z+1/2
y+1/4,-x+1/4,z+3/4
x,-y,-z+1/2
y+1/4,x+3/4,-z+3/4
-x+1/2,y,-z
-y+1/4,-x+1/4,-z+1/4
-x,-y,-z
y-1/4,-x-3/4,-z-1/4
x-1/2,y,-z-1/2
-y-1/4,x-1/4,-z-3/4
-x,y,z-1/2
-y-1/4,-x-3/4,z-3/4
x-1/2,-y,z
y-1/4,x-1/4,z-1/4
x+1/2,y+1/2,z+1/2
-y+3/4,x+5/4,z+3/4
-x+1,-y+1/2,z+1
y+3/4,-x+3/4,z+5/4
x+1/2,-y+1/2,-z+1
y+3/4,x+5/4,-z+5/4
-x+1,y+1/2,-z+1/2
-y+3/4,-x+3/4,-z+3/4
-x+1/2,-y+1/2,-z+1/2
y+1/4,-x-1/4,-z+1/4
x,y+1/2,-z
-y+1/4,x+1/4,-z-1/4
-x+1/2,y+1/2,z
-y+1/4,-x-1/4,z-1/4
x,-y+1/2,z+1/2
y+1/4,x+1/4,z+1/4
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
Na1 Na 0.1946 0 0.25 1 0.0
C1 C 0.0628 0.3128 0.125 1 0.0
