#------------------------------------------------------------------------------ #$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/04/1000440.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_1000440 loop_ _publ_author_name 'Toumi, M' 'Chabchoub, S' 'Smiri-Dogguy, L' 'Laligant, Y' _publ_section_title ; Ab-initio powder structure determination of Ca Ba2 (H P O4)2 (H2 P O4)2 : a new phosphate with a M(T$-Phi4)4 chain structure ; _journal_coden_ASTM EJSCE5 _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_page_first 1249 _journal_page_last 1257 _journal_volume 34 _journal_year 1997 _chemical_formula_structural 'Ca Ba2 (H P O4)2 (H2 P O4)2' _chemical_formula_sum 'Ba2 Ca H6 O16 P4' _chemical_name_systematic ; Calcium dibarium bis(hydrogenphosphate(V)) bis(dihydrogenphosphate(V)) ; _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 14 _symmetry_space_group_name_Hall '-P 2yab' _symmetry_space_group_name_H-M 'P 1 21/a 1' _cell_angle_alpha 90 _cell_angle_beta 100.767(1) _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 12.3872(2) _cell_length_b 10.2046(1) _cell_length_c 5.4946(1) _cell_volume 682.3 _refine_ls_R_factor_all 0.04 _cod_original_formula_sum 'H6 Ba2 Ca O16 P4' _cod_database_code 1000440 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2-x,1/2+y,-z -x,-y,-z 1/2+x,1/2-y,z 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 Ba1 Ba2+ 4 e 0.3236(1) 0.1559(1) 0.1422(2) 1. 0 d Ca1 Ca2+ 2 a 0.5 0.5 0. 1. 0 d P1 P5+ 4 e 0.0508(5) 0.3063(5) 0.7581(10) 1. 0 d P2 P5+ 4 e 0.2019(5) -0.0082(6) 0.5832(11) 1. 0 d O1 O2- 4 e 0.1753(10) 0.3103(11) 0.8156(23) 1. 0 d O2 O2- 4 e 0.0243(9) 0.2616(10) 0.4822(22) 1. 0 d O3 O2- 4 e 0.2180(9) 0.8383(13) 0.5066(19) 1. 0 d O4 O2- 4 e 0.0061(10) 0.4604(12) 0.7289(22) 1. 0 d O5 O2- 4 e 0.314(1) 0.0669(10) 0.6233(24) 1. 0 d O6 O2- 4 e 0.1239(10) 0.0516(10) 0.3452(22) 1. 0 d O7 O2- 4 e 0.0034(9) 0.2353(11) -0.0497(22) 1. 0 d O8 O2- 4 e 0.1543(9) -0.0089(11) 0.8178(26) 1. 0 d H1 H1+ 4 e -1. -1. -1. 3. 0 dum loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Ca2+ 2.000 P5+ 5.000 O2- -2.000 H1+ 1.000