#------------------------------------------------------------------------------ #$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $ #$Revision: 858 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1011294.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_1011294 _chemical_name_systematic 'Dipotassium copper tetrachloride dihydrate' _chemical_name_mineral 'Mitscherlichite' _chemical_compound_source 'synthetic by slow evaporation' _chemical_formula_structural 'K2 Cu Cl4 (H2 O)2' _chemical_formula_sum 'Cl4 Cu H4 K2 O2' _[local]_cod_chemical_formula_sum_orig 'H4 Cl4 Cu K2 O2' _publ_section_title ; Quantitative spectrometric studies of ammonium and of potassium cupric chloride dihydrate (N H4)2 Cu Cl4 (H2 O)2 and K2 Cu Cl4 (H2 O)2 ; loop_ _publ_author_name 'Chrobak, L' _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_coden_ASTM ZEKGAX _journal_volume 88 _journal_year 1934 _journal_page_first 35 _journal_page_last 47 _cell_length_a 7.45 _cell_length_b 7.45 _cell_length_c 7.88 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 437.4 _cell_formula_units_Z 2 _exptl_crystal_density_meas 2.41 _symmetry_space_group_name_H-M 'P 42/m n m' _symmetry_Int_Tables_number 136 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2+z' '-x,-y,-z' 'x,y,-z' '1/2-x,1/2+y,1/2-z' '1/2+x,1/2-y,1/2-z' 'y,x,z' '-y,-x,z' '1/2-y,1/2+x,1/2+z' '1/2+y,1/2-x,1/2+z' '-y,-x,-z' 'y,x,-z' '1/2+y,1/2-x,1/2-z' '1/2-y,1/2+x,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Cu2+ 2.000 K1+ 1.000 O2- -2.000 Cl1- -1.000 H1+ 1.000 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 Cu1 Cu2+ 2 a 0. 0. 0. 1. 0 d K1 K1+ 4 d 0. 0.5 0.25 1. 0 d O1 O2- 4 e 0. 0. 0.248 1. 2 d Cl1 Cl1- 4 f 0.22 0.22 0. 1. 0 d Cl2 Cl1- 4 g 0.22 0.22 0.5 1. 0 d H1 H1+ 8 j 0.076 0.076 0.322 1. 0 d