#------------------------------------------------------------------------------
#$Date: 2017-09-02 00:37:14 +0300 (Sat, 02 Sep 2017) $
#$Revision: 200085 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/00/27/2002759.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_2002759
loop_
_publ_author_name
'Frerichs, D.'
'Park, C. H.'
'Müller-Buschbaum, Hk.'
_publ_section_title
;
 Zur Kenntnis zweier Formen des Zinkorthoarsenates: α-Zn₃(AsO₄)₂ und
 β-Zn₃(AsO₄)₂ / On Two Forms of Zinc Orthoarsenate: α-Zn₃(AsO₄)₂
 and β-Zn₃(AsO₄)₂
;
_journal_coden_ASTM              ZNBSEN
_journal_issue                   3
_journal_name_full
;
 Zeitschrift für Naturforschung, B: A Journal of Chemical Sciences
;
_journal_page_first              333
_journal_page_last               337
_journal_paper_doi               10.1515/znb-1996-0306
_journal_volume                  51
_journal_year                    1996
_chemical_formula_structural     'Zn3 (As O4)2'
_chemical_formula_sum            'As2 O8 Zn3'
_chemical_name_systematic        'Trizink bis(arsenate(V)) - α'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 92.25(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.3061(14)
_cell_length_b                   8.652(2)
_cell_length_c                   11.321(4)
_cell_volume                     617.2
_refine_ls_R_factor_all          0.1824
_cod_database_code               2002759
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,1/2+y,1/2-z
-x,-y,-z
x,1/2-y,1/2+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
Zn1 Zn2+ 4 e 0.2424(2) 0.16439(12) 0.6323(1) 1. 0 d
Zn2 Zn2+ 4 e 0.6175(2) 0.03129(12) 0.87775(11) 1. 0 d
Zn3 Zn2+ 4 e 0.9077(2) 0.18983(12) 0.4318(1) 1. 0 d
As1 As5+ 4 e 0.41401(13) 0.11356(10) 0.36801(8) 1. 0 d
As2 As5+ 4 e 0.89619(13) 0.06049(9) 0.15107(8) 1. 0 d
O1 O2- 4 e 0.6044(9) 0.2398(6) 0.4176(6) 1. 0 d
O2 O2- 4 e -0.0408(9) 0.2411(6) 0.1054(5) 1. 0 d
O3 O2- 4 e 0.2029(10) 0.1299(7) 0.4563(6) 1. 0 d
O4 O2- 4 e 0.0847(9) -0.0704(7) 0.1195(6) 1. 0 d
O5 O2- 4 e 0.3395(9) 0.1547(6) 0.2252(5) 1. 0 d
O6 O2- 4 e 0.6691(9) -0.0032(8) 0.0828(5) 1. 0 d
O7 O2- 4 e 0.4836(10) -0.0714(7) 0.3645(7) 1. 0 d
O8 O2- 4 e -0.1289(10) 0.0504(7) 0.2982(5) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Zn2+ 2.000
As5+ 5.000
O2- -2.000
