#------------------------------------------------------------------------------
#$Date: 2023-03-26 11:09:57 +0300 (Sun, 26 Mar 2023) $
#$Revision: 282068 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/00/27/2002789.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_2002789
loop_
_publ_author_name
'Staack, M'
'Mueller-Buschbaum, Hk'
_publ_section_title
;
Zur Kenntnis des Kupfer-Oxid-Arsenats Cu4 O (As O4)2
;
_journal_name_full
;
Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie,
Organische Chemie (42,1987-)
;
_journal_page_first              1279
_journal_page_last               1282
_journal_volume                  51
_journal_year                    1996
_chemical_compound_source        Synthetic
_chemical_formula_structural     'Cu4 O (As O4)2'
_chemical_formula_sum            'As2 Cu4 O9'
_chemical_name_mineral           Ericlaxmanite
_chemical_name_systematic        'Tetracopper oxide bis(arsenate(V))'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                98.521(8)
_cell_angle_beta                 112.394(8)
_cell_angle_gamma                98.378(11)
_cell_formula_units_Z            2
_cell_length_a                   6.4148(7)
_cell_length_b                   7.6549(5)
_cell_length_c                   8.2241(7)
_cell_volume                     360.1
_database_code_amcsd             0019952
_exptl_crystal_density_diffrn    5.054
_refine_ls_R_factor_all          0.0414
_cod_database_code               2002789
loop_
_space_group_symop_operation_xyz
x,y,z
-x,-y,-z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
Cu1 Cu2+ 2 i 0.34622(2) 0.84149(2) 0.54876(2) 1. 0 d
Cu2 Cu2+ 2 i 0.37911(2) 0.61022(2) 0.25341(2) 1. 0 d
Cu3 Cu2+ 2 i 0.09417(2) 0.35754(2) 0.73365(2) 1. 0 d
Cu4 Cu2+ 2 i 0.14436(2) 0.87817(2) 0.08385(2) 1. 0 d
As1 As5+ 2 i 0.13134(2) 0.229100(14) 0.353540(13) 1. 0 d
As2 As5+ 2 i 0.50233(2) 0.287280(14) 0.088810(13) 1. 0 d
O1 O2- 2 i 0.62551(13) 0.48660(11) 0.25107(10) 1. 0 d
O2 O2- 2 i -0.00428(13) 0.07120(11) 0.1574(1) 1. 0 d
O3 O2- 2 i 0.19629(12) 0.77428(11) 0.28929(9) 1. 0 d
O4 O2- 2 i 0.23341(14) 0.30778(12) -0.02809(11) 1. 0 d
O5 O2- 2 i 0.34208(14) 0.72149(12) 0.03546(10) 1. 0 d
O6 O2- 2 i 0.50029(14) 0.88559(11) 0.8086(1) 1. 0 d
O7 O2- 2 i 0.1753(2) 0.43703(12) 0.31633(12) 1. 0 d
O8 O2- 2 i 0.37331(14) 0.17329(13) 0.49011(11) 1. 0 d
O9 O2- 2 i -0.03237(13) 0.22833(13) 0.47245(10) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Cu2+ 2.000
As5+ 5.000
O2- -2.000
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0019952
