#------------------------------------------------------------------------------ #$Date: 2016-02-18 15:37:37 +0000 (Thu, 18 Feb 2016) $ #$Revision: 176729 $ #$URL: svn://www.crystallography.net/cod/cif/1/00/16/1001639.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_1001639 loop_ _publ_author_name 'Huve, M' 'Martin, C' 'Maignan, A' 'Michel, C' 'Van Tendeloo, G' 'Hervieu, M' 'Raveau, B' _publ_section_title ; A new cuprate with mercury bilayers: the "2222" oxide Hg2-x Mx Ba2 Pr2 Cu2 O10-d (M=Cu,Pr) ; _journal_coden_ASTM JSSCBI _journal_name_full 'Journal of Solid State Chemistry' _journal_page_first 230 _journal_page_last 235 _journal_paper_doi 10.1006/jssc.1995.1033 _journal_volume 114 _journal_year 1995 _chemical_formula_analytical '(Hg1.5 Cu0.2 Pr0.3) Ba2 Pr2 Cu2 O10' _chemical_formula_structural 'Hg1.88 Ba2 Pr2 Cu2 O10' _chemical_formula_sum 'Ba2 Cu2 Hg1.88 O10 Pr2' _chemical_name_systematic ; Mercury barium praseodymium copper oxide (2/2/2/2/10) ; _space_group_IT_number 129 _symmetry_cell_setting tetragonal _symmetry_space_group_name_Hall '-P 4a 2a' _symmetry_space_group_name_H-M 'P 4/n m m :2' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 1 _cell_length_a 3.9072(1) _cell_length_b 3.9072(1) _cell_length_c 17.21919(60) _cell_volume 262.9 _refine_ls_R_factor_all 0.076 _cod_original_sg_symbol_H-M 'P 4/n m m Z' _cod_database_code 1001639 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2-x,y,z x,1/2-y,z 1/2-x,1/2-y,z y,x,z 1/2-y,x,z y,1/2-x,z 1/2-y,1/2-x,z -x,-y,-z 1/2+x,-y,-z -x,1/2+y,-z 1/2+x,1/2+y,-z -y,-x,-z 1/2+y,-x,-z -y,1/2+x,-z 1/2+y,1/2+x,-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 Hg1 Hg2+ 2 c 0.75 0.75 0.4377(3) 0.94(4) 0 d Cu1 Cu3+ 2 c 0.75 0.75 0.1743(7) 1. 0 d Ba1 Ba2+ 2 c 0.25 0.25 0.2916(3) 1. 0 d Pr1 Pr3+ 2 c 0.25 0.25 0.0762(3) 1. 0 d O1 O2- 2 a 0.25 0.75 0. 1. 0 d O2 O2- 4 f 0.75 0.25 0.175(1) 1. 0 d O3 O2- 2 c 0.75 0.75 0.312(2) 1. 0 d O4 O2- 2 c 0.25 0.25 0.448(2) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Hg2+ 2.000 Cu3+ 3.000 Ba2+ 2.000 Pr3+ 3.120 O2- -2.000