#------------------------------------------------------------------------------
#$Date: 2016-02-18 16:37:37 +0100 (Thu 18 de Feb de 2016) $
#$Revision: 176729 $
#$URL: svn://www.crystallography.net/cod/cif/1/51/80/1518031.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_1518031
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            'Al As O4'
_chemical_formula_weight         165.90
_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                   5.027(1)
_cell_length_b                   5.027(1)
_cell_length_c                   11.213(3)
_cell_volume                     245.40(10)
_diffrn_ambient_temperature      293
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_exptl_absorpt_coefficient_mu    10.488
_exptl_crystal_density_diffrn    3.368
_exptl_crystal_F_000             234
_refine_ls_number_reflns         302
_refine_ls_R_factor_gt           0.011
_cod_data_source_file            RCM-1983-20-338-350-AlAsO4-293.cif
_cod_data_source_block           AlAsO4-293
_cod_original_cell_volume        245.40(14)
_cod_database_code               1518031
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 0.0074(1) 0.0056(1) 0.0073(1) -0.0004(1) -0.0002 0.0028
Al 0.0080(3) 0.0067(4) 0.0086(3) 0.0000(3) 0.0000 0.0034
O1 0.0178(8) 0.0127(7) 0.0135(6) -0.0049(5) -0.0039(5) 0.0100(7)
O2 0.0190(8) 0.0130(7) 0.0145(6) -0.0049(5) -0.0034(5) 0.0115(7)
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 0.45704(6) 0.00000 0.83333 1.000 0.0070(1)
Al Al Uani 0.4585(2) 0.00000 0.33333 1.000 0.0079(2)
O1 O Uani 0.4075(4) 0.2969(2) 0.3914(8) 1.000 0.0136(4)
O2 O Uani 0.4043(3) 0.2860(2) 0.88028(8) 1.000 0.0139(4)
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
Al Al 0.0645 0.0514 ' International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
As As 0.0499 2.0058 ' 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 111.29(7) 2_655 . yes
O1 As O2 109.4(2) 5_656 . yes
O2 As O2 107.90(8) . 6_556 yes
O1 As O1 107.6(3) 2_655 5_656 yes
O1 As O2 109.4(2) 2_655 6_556 yes
O1 As O2 111.28(8) 5_656 6_556 yes
O1 Al O2 113.0(2) . 2_654 yes
O1 Al O2 104.7(3) . 5_656 yes
O1 Al O1 110.57(14) . 6_555 yes
O2 Al O2 111.06(9) 2_654 5_656 yes
O1 Al O2 104.8(3) 6_555 2_654 yes
O1 Al O2 113.0(2) 6_555 5_656 yes
As O1 Al 137.7(3) 3_664 . yes
As O2 Al 134.53(9) . 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 1.6720(13) . yes
As O1 1.623(7) 2_655 yes
As O1 1.623(7) 5_656 yes
As O2 1.6720(15) 6_556 yes
Al O1 1.761(4) . yes
Al O2 1.7441(14) 2_654 yes
Al O2 1.7440(15) 5_656 yes
Al O1 1.761(4) 6_555 yes
