#------------------------------------------------------------------------------ #$Date: 2017-09-03 00:31:07 +0100 (Sun, 03 Sep 2017) $ #$Revision: 200138 $ #$URL: svn://www.crystallography.net/cod/cif/1/00/81/1008164.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_1008164 loop_ _publ_author_name 'Garnier, P.' 'Calvarin, G.' 'Berar, J. F.' 'Weigel, D.' _publ_section_title ; Etude des Phases Ferroelastiques de Pb~3~V~2~O~8~: Determination de la Maille Cristalline de la Phase \a Ferroelectrique Basse Temperature ; _journal_coden_ASTM MRBUAC _journal_issue 4 _journal_name_full 'Materials Research Bulletin' _journal_page_first 407 _journal_page_last 414 _journal_paper_doi 10.1016/0025-5408(84)90099-0 _journal_volume 19 _journal_year 1984 _chemical_formula_structural 'Pb3 V2 O8' _chemical_formula_sum 'O8 Pb3 V2' _chemical_name_systematic 'Trilead vanadate - \b' _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 14 _symmetry_space_group_name_Hall '-P 2ybc' _symmetry_space_group_name_H-M 'P 1 21/c 1' _cell_angle_alpha 90 _cell_angle_beta 115.20(1) _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 7.514(1) _cell_length_b 6.107(1) _cell_length_c 9.526(1) _cell_volume 395.5 _refine_ls_R_factor_all 0.045 _cod_database_code 1008164 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,1/2+y,1/2-z -x,-y,-z x,1/2-y,1/2+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 Pb1 Pb2+ 2 a 0. 0. 0. 1. 0 d Pb2 Pb2+ 4 e 0.384(1) 0.582(1) 0.288(1) 1. 0 d V1 V5+ 4 e 0.196(6) 0.234(4) 0.403(5) 1. 0 d O1 O2- 4 e 0.274(10) 0.269(11) 0.015(8) 1. 0 d O2 O2- 4 e 0.25(1) 0.706(11) 0.003(8) 1. 0 d O3 O2- 4 e 0.324(8) 0.96(1) 0.268(8) 1. 0 d O4 O2- 4 e 0.058(8) 0.545(8) 0.218(6) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Pb2+ 2.000 V5+ 5.000 O2- -2.000