#------------------------------------------------------------------------------ #$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1008371.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_1008371 _chemical_name_systematic 'Dibismuth tetraphosphate' _chemical_formula_structural 'Bi2 P4 O13' _chemical_formula_sum 'Bi2 O13 P4' _publ_section_title ; Crystal data and crystal structure of bismuth tetraphosphate Bi~2~ P~4~ O~13~ ; loop_ _publ_author_name 'Bagieu-Beucher, M' 'Averbuch-Pouchot, M-T' _journal_name_full ; Zeitschrift fuer Kristallographie (149,1979-) ; _journal_coden_ASTM ZEKRDZ _journal_volume 180 _journal_year 1987 _journal_page_first 165 _journal_page_last 170 _cell_length_a 11.977(4) _cell_length_b 6.878(2) _cell_length_c 13.285(4) _cell_angle_alpha 90 _cell_angle_beta 106.50(2) _cell_angle_gamma 90 _cell_volume 1049.3 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'C 1 2/c 1' _symmetry_Int_Tables_number 15 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,y,1/2-z' '-x,-y,-z' 'x,-y,1/2+z' '1/2+x,1/2+y,z' '1/2-x,1/2+y,1/2-z' '1/2-x,1/2-y,-z' '1/2+x,1/2-y,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Bi3+ 3.000 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+ 8 f 0.30323(3) 0.0004(1) 0.43853(2) 1. 0 d P1 P5+ 8 f 0.2305(2) -0.0047(7) 0.1594(2) 1. 0 d P2 P5+ 8 f 0.4898(3) 0.3581(5) 0.1372(2) 1. 0 d O1 O2- 8 f 0.2003(8) 0.493(2) 0.2261(5) 1. 0 d O2 O2- 8 f 0.7537(8) 0.320(1) 0.0979(6) 1. 0 d O3 O2- 8 f 0.2499(8) 0.173(2) 0.0983(6) 1. 0 d O4 O2- 8 f 0.0959(7) -0.002(2) 0.1531(6) 1. 0 d O5 O2- 8 f 0.6135(7) 0.493(2) 0.3940(6) 1. 0 d O6 O2- 8 f 0.5033(8) 0.194(1) 0.4339(7) 1. 0 d O7 O2- 4 ? 0.5 0.269(2) 0.25 1. 0 d _refine_ls_R_factor_all 0.05