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#$Date: 2015-01-27 19:58:39 +0000 (Tue, 27 Jan 2015) $
#$Revision: 130149 $
#$URL: svn://www.crystallography.net/cod/cif/1/01/01/1010143.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_1010143
loop_
_publ_author_name
'Strada, M'
_publ_section_title
;
La struttura cristallina di alcuni fosfati ed arseniati di metalli
trivalenti. I. Fosfato ed arseniato di alluminio
;
_journal_coden_ASTM              GCITA9
_journal_name_full               'Gazzetta Chimica Italiana'
_journal_page_first              653
_journal_page_last               662
_journal_volume                  64
_journal_year                    1934
_chemical_formula_structural     'Al As O4'
_chemical_formula_sum            'Al As O4'
_chemical_name_systematic        'Aluminium arsenate'
_space_group_IT_number           82
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      82
_symmetry_space_group_name_Hall  'I -4'
_symmetry_space_group_name_H-M   'I -4'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   4.90(1)
_cell_length_b                   4.90(1)
_cell_length_c                   6.64(1)
_cell_volume                     159.4
_exptl_crystal_density_meas      3.3
_cod_database_code               1010143
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
y,-x,-z
-y,x,-z
1/2+x,1/2+y,1/2+z
1/2-x,1/2-y,1/2+z
1/2+y,1/2-x,1/2-z
1/2-y,1/2+x,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
Al1 Al3+ 2 a 0. 0. 0. 1. 0 d
As1 As5+ 2 d 0. 0.5 0.75 1. 0 d
O1 O2- 8 g 0.232 0.271 0.118 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Al3+ 3.000
As5+ 5.000
O2- -2.000