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#$Date: 2016-02-18 17:37:37 +0200 (Thu, 18 Feb 2016) $
#$Revision: 176729 $
#$URL: svn://www.crystallography.net/cod/cif/1/51/80/1518032.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_1518032
loop_
_publ_author_name
'Goiffon, Aline'
'Bayle, Gisele'
'Astier, Rene'
'Jumas, Jean-Claude'
'Maurin, Maurice'
'Philippot, Etienne'
_publ_section_title
;
 Cristallochimie des phases GaPO4, AlAsO4 et GaAsO4. Etude comparee des
 structures de type quartz alpha
;
_journal_name_full               'Revue de Chimie Minerale'
_journal_page_first              338
_journal_page_last               350
_journal_volume                  20
_journal_year                    1983
_chemical_formula_sum            'As Ga O4'
_chemical_formula_weight         208.64
_space_group_IT_number           152
_symmetry_cell_setting           trigonal
_symmetry_Int_Tables_number      152
_symmetry_space_group_name_Hall  'P 31 2"'
_symmetry_space_group_name_H-M   'P 31 2 1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   4.986(3)
_cell_length_b                   4.986(3)
_cell_length_c                   11.375(7)
_cell_volume                     244.9(3)
_diffrn_ambient_temperature      173
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_exptl_absorpt_coefficient_mu    18.314
_exptl_crystal_density_diffrn    4.244
_exptl_crystal_F_000             288
_refine_ls_number_reflns         282
_refine_ls_R_factor_gt           0.018
_cod_data_source_file            RCM-1983-20-338-350-GaAsO4-173.cif
_cod_data_source_block           GaAsO4-173
_cod_original_cell_volume        244.9(4)
_cod_database_code               1518032
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 x,y,z
2 -y,x-y,1/3+z
3 -x+y,-x,2/3+z
4 y,x,-z
5 -x,-x+y,1/3-z
6 x-y,-y,2/3-z
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
As 0.0077(3) 0.0061(4) 0.0058(3) -0.0005(1) -0.0003 0.0031
Ga 0.0043(3) 0.0032(4) 0.0044(3) -0.0008(3) -0.0004 0.0016
O1 0.016(3) 0.014(2) 0.0120(10) 0.000(5) -0.002(2) 0.002(2)
O2 0.014(3) 0.012(2) 0.0130(10) 0.000(3) -0.005(2) 0.008(2)
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_thermal_displace_type
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
As As Uani 0.4496(2) 0.00000 0.83333 1.000 0.0067(2)
Ga Ga Uani 0.4498(2) 0.00000 0.33333 1.000 0.0041(2)
O1 O Uani 0.3994(16) 0.3094(13) 0.3806(4) 1.000 0.0164(12)
O2 O Uani 0.3976(15) 0.3034(13) 0.8749(4) 1.000 0.0123(12)
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
As As 0.0499 2.0058 ' International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Ga Ga 0.2307 1.6083 ' International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 ' International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
O1 As O2 112.3(3) 2_655 . yes
O1 As O2 106.9(3) 5_656 . yes
O2 As O2 107.8(4) . 6_556 yes
O1 As O1 110.7(4) 2_655 5_656 yes
O1 As O2 106.9(3) 2_655 6_556 yes
O1 As O2 112.4(4) 5_656 6_556 yes
O1 Ga O2 113.2(3) . 2_654 yes
O1 Ga O2 104.6(3) . 5_656 yes
O1 Ga O1 109.2(4) . 6_555 yes
O2 Ga O2 112.1(4) 2_654 5_656 yes
O1 Ga O2 104.6(3) 6_555 2_654 yes
O1 Ga O2 113.2(3) 6_555 5_656 yes
As O1 Ga 130.4(4) 3_664 . yes
As O2 Ga 128.7(4) . 3_665 yes
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
As O2 1.724(7) . yes
As O1 1.718(6) 2_655 yes
As O1 1.718(7) 5_656 yes
As O2 1.724(8) 6_556 yes
Ga O1 1.766(7) . yes
Ga O2 1.784(6) 2_654 yes
Ga O2 1.783(7) 5_656 yes
Ga O1 1.766(8) 6_555 yes
