#------------------------------------------------------------------------------ #$Date: 2013-03-28 18:17:04 +0200 (Thu, 28 Mar 2013) $ #$Revision: 77586 $ #$URL: file:///home/coder/svn-repositories/cod/cif/5/00/02/5000227.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_5000227 loop_ _publ_author_name 'Wildner, M' 'Giester, G' 'Lengauer, C L' 'McCammon, C A' _journal_name_full 'European Journal of Mineralogy (1,1989-)' _journal_page_first 187 _journal_page_last 192 _journal_volume 8 _journal_year 1996 _chemical_name_mineral Erythrite _chemical_name_systematic ; Cobalt iron nickel arsenate hydrate (2.01/0.74/0.25/2/8) ; _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 12 _symmetry_space_group_name_H-M 'C 1 2/m 1' _cell_angle_alpha 90 _cell_angle_beta 104.98(1) _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 10.251(3) _cell_length_b 13.447(4) _cell_length_c 4.764(1) _cell_volume 634.4 _exptl_crystal_density_meas 3.09 _cod_database_code 5000227 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,-y,z -x,-y,-z -x,y,-z 1/2+x,1/2+y,z 1/2+x,1/2-y,z 1/2-x,1/2-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 Co1 Co2+ 2 a 0. 0. 0. 0.67 0 d Fe1 Fe2+ 2 a 0. 0. 0. 0.2467 0 d Ni1 Ni2+ 2 a 0. 0. 0. 0.0833 0 d Co2 Co2+ 4 g 0. 0.38512(3) 0. 0.67 0 d Fe2 Fe2+ 4 g 0. 0.38512(3) 0. 0.2467 0 d Ni2 Ni2+ 4 g 0. 0.38512(3) 0. 0.0833 0 d As1 As5+ 4 i 0.31621(3) 0. 0.37235(7) 1. 0 d O1 O2- 4 i 0.1493(2) 0. 0.3748(5) 1. 0 d O2 O2- 4 i 0.4057(3) 0. 0.7226(5) 1. 0 d O3 O2- 8 j 0.3433(2) 0.1067(1) 0.2087(4) 1. 0 d O4 O2- 8 j 0.0978(2) 0.1137(2) 0.8067(4) 1. 2 d O5 O2- 8 j 0.3995(2) 0.2273(2) 0.7133(5) 1. 2 d H1 H1+ 8 j 0.119(4) 0.091(3) 0.657(7) 1. 0 d H2 H1+ 8 j 0.163(4) 0.127(3) 0.902(9) 1. 0 d H3 H1+ 8 j 0.368(5) 0.208(3) 0.536(11) 1. 0 d H4 H1+ 8 j 0.448(4) 0.282(3) 0.714(9) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Co2+ 2.000 Fe2+ 2.000 Ni2+ 2.000 As5+ 5.000 O2- -2.000 H1+ 1.000