#------------------------------------------------------------------------------ #$Date: 2010-01-30 13:59:17 +0000 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: svn://www.crystallography.net/cod/cif/2/2012800.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_2012800 _journal_name_full 'Acta Crystallographica, Section C' _journal_year 2002 _journal_volume 58 _journal_page_first i90 _journal_page_last i91 _publ_section_title ; K~2~CsYb(PO~4~)~2~ ; loop_ _publ_author_name 'Rghioui, Lotfi' 'El Ammari, Lahcen' 'Benarafa, Larbi' 'Wignacourt, Jean Pierre' _chemical_formula_moiety 'K2 Cs Yb (P O4)2' _chemical_formula_sum 'Cs K2 O8 P2 Yb' _chemical_formula_structural 'K2 Cs Yb (P O4)2' _chemical_formula_iupac 'K2 Cs Yb (P O4)2' _chemical_formula_weight 574.09 _symmetry_cell_setting trigonal _symmetry_space_group_name_H-M 'P -3 m 1' _symmetry_space_group_name_Hall '-P 3 2"' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-y, x-y, z' '-y, -x, z' '-x+y, -x, z' 'x, x-y, z' '-x+y, y, z' '-x, -y, -z' 'y, -x+y, -z' 'y, x, -z' 'x-y, x, -z' '-x, -x+y, -z' 'x-y, -y, -z' _cell_length_a 5.6203(8) _cell_length_b 5.6203(8) _cell_length_c 7.9983(10) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 218.80(5) _cell_formula_units_Z 1 _cell_measurement_temperature 293(2) _exptl_crystal_density_diffrn 4.357 _diffrn_ambient_temperature 293(2) loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol Yb 0.0000 0.0000 0.0000 0.00805(15) Uani d S 1 . . Yb Cs 0.0000 0.0000 0.5000 0.01616(15) Uani d S 1 . . Cs P 0.3333 0.6667 0.77364(19) 0.0067(3) Uani d S 1 . . P K 0.3333 0.6667 0.25135(19) 0.0163(3) Uani d S 1 . . K O1 0.1842(3) 0.8158(3) 0.8398(3) 0.0186(5) Uani d S 1 . . O O2 0.3333 0.6667 0.5850(6) 0.0229(10) Uani d S 1 . . O loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Yb 0.00765(16) 0.00765(16) 0.0089(2) 0.00382(8) 0.000 0.000 Cs 0.01919(19) 0.01919(19) 0.0101(3) 0.00960(10) 0.000 0.000 P 0.0065(4) 0.0065(4) 0.0070(6) 0.00324(18) 0.000 0.000 K 0.0125(3) 0.0125(3) 0.0239(7) 0.00627(17) 0.000 0.000 O1 0.0172(9) 0.0172(9) 0.0249(13) 0.0112(10) 0.0038(5) -0.0038(5) O2 0.0299(16) 0.0299(16) 0.009(2) 0.0149(8) 0.000 0.000 loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag Yb O1 1_544 2.204(3) yes Yb K . 3.8172(10) no Cs O1 1_545 3.256(3) yes Cs O2 . 3.3153(11) yes P O2 . 1.509(5) yes P O1 . 1.545(3) yes P K 7_566 3.2510(6) no P K 1_556 3.821(2) no P Cs 1_565 3.9140(10) no K O2 . 2.668(5) yes K O1 7_566 2.908(2) yes K P 7_566 3.2510(6) no K Cs 1_565 3.8058(10) no _cod_database_code 2012800