#------------------------------------------------------------------------------ #$Date: 2008-01-26 13:05:32 +0000 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: svn://www.crystallography.net/cod/cif/1/1004105.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_1004105 _chemical_name_systematic 'Bismuth dicopper phosphate(V) dioxide' _chemical_formula_structural 'Bi Cu2 (P O4) O2' _chemical_formula_sum 'Bi Cu2 O6 P' _publ_section_title ; Crystal structure of a new bismuth copper oxyphosphate: Bi Cu2 P O6 ; loop_ _publ_author_name 'Abraham, F' 'Ketatni, M' 'Mairesse, G' 'Mernari, B' _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_coden_ASTM EJSCE5 _journal_volume 31 _journal_year 1994 _journal_page_first 313 _journal_page_last 323 _cell_length_a 11.776(1) _cell_length_b 5.1730(6) _cell_length_c 7.7903(6) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 474.6 _cell_formula_units_Z 4 _exptl_crystal_density_meas 6.48 _symmetry_space_group_name_H-M 'P n m a' _symmetry_Int_Tables_number 62 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2+x,1/2-y,1/2-z' '-x,1/2+y,-z' '1/2-x,-y,1/2+z' '-x,-y,-z' '1/2-x,1/2+y,1/2+z' 'x,1/2-y,z' '1/2+x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Bi3+ 3.000 Cu2+ 2.000 P5+ 5.000 O2- -2.000 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 Bi1 Bi3+ 4 c 0.10713(3) 0.25 0.02360(5) 1. 0 d Cu1 Cu2+ 4 c 0.0898(1) 0.75 0.6864(2) 1. 0 d Cu2 Cu2+ 4 c 0.0722(1) 0.75 0.3156(2) 1. 0 d P1 P5+ 4 c 0.1972(2) 0.25 0.4658(4) 1. 0 d O1 O2- 8 d -0.0056(5) 0.0040(12) 0.1760(7) 1. 0 d O2 O2- 8 d 0.1232(5) 0.4973(13) 0.4945(8) 1. 0 d O3 O2- 4 c 0.2986(8) 0.25 0.5860(14) 1. 0 d O4 O2- 4 c 0.2345(8) 0.25 0.2782(11) 1. 0 d _refine_ls_R_factor_all 0.029