#------------------------------------------------------------------------------ #$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $ #$Revision: 14 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1000505.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_1000505 _chemical_name_systematic 'Gallium phosphate(V) dihydrate' _chemical_formula_structural 'Ga (P O4) (H2 O)2' _chemical_formula_sum 'H4 Ga O6 P' _publ_section_title ; Crystal structure determination of the hydrated gallium phosphate Ga P O4 . 2(H2 O), analog of variscite ; loop_ _publ_author_name 'Loiseau, T' 'Paulet, C' 'Ferey, G' _journal_name_full 'C. R. Acad. Sci. Paris, T. 1, Serie II' _journal_coden_ASTM CASCFN _journal_volume 1 _journal_year 1998 _journal_page_first 667 _journal_page_last 674 _cell_length_a 9.9260(1) _cell_length_b 8.6189(1) _cell_length_c 9.7622(1) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 835.2 _cell_formula_units_Z 8 _symmetry_space_group_name_H-M 'P b c a' _symmetry_Int_Tables_number 61 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2+x,1/2-y,-z' '-x,1/2+y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-z' '1/2-x,1/2+y,z' 'x,1/2-y,1/2+z' '1/2+x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Ga3+ 3.000 P5+ 5.000 O2- -2.000 H1+ 1.000 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 Ga1 Ga3+ 8 c 0.1323(1) 0.1539(1) 0.1704(1) 1. 0 d P1 P5+ 8 c 0.1497(1) 0.4682(1) 0.3554(1) 1. 0 d O1 O2- 8 c 0.1105(2) 0.2989(2) 0.3233(2) 1. 0 d O2 O2- 8 c 0.0477(2) 0.5827(2) 0.2921(2) 1. 0 d O3 O2- 8 c 0.2888(2) 0.5046(2) 0.2956(2) 1. 0 d O4 O2- 8 c 0.1483(2) 0.4860(2) 0.5122(2) 1. 0 d O5 O2- 8 c 0.0577(2) 0.3336(2) 0.0568(2) 1. 2 d O6 O2- 8 c 0.3088(2) 0.2329(2) 0.1114(2) 1. 2 d H1 H1+ 8 c 0.0644(67) 0.3081(67) -0.0394(67) 1. 0 d H2 H1+ 8 c -0.0125(67) 0.3548(67) 0.0740(67) 1. 0 d H3 H1+ 8 c 0.3150(63) 0.3173(63) 0.0865(63) 1. 0 d H4 H1+ 8 c 0.3625(81) 0.1739(81) 0.1228(81) 1. 0 d _refine_ls_R_factor_all 0.036