#------------------------------------------------------------------------------ #$Date: 2008-01-26 13:05:32 +0000 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: svn://www.crystallography.net/cod/cif/1/1010925.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_1010925 _chemical_name_systematic 'Zinc arsenate hydroxide' _chemical_name_mineral 'Adamite' _chemical_compound_source 'from Laurion, Greece' _chemical_formula_structural 'Zn2 (As O4) (O H)' _chemical_formula_sum 'H As O5 Zn2' _publ_section_title 'Ueber die Struktur von Adamin.' _publ_author_name 'Kokkoros, P' _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_coden_ASTM ZEKGAX _journal_volume 96 _journal_year 1937 _journal_page_first 417 _journal_page_last 434 _cell_length_a 8.31 _cell_length_b 8.51 _cell_length_c 6.06 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 428.6 _cell_formula_units_Z 4 _exptl_crystal_density_meas 4.48 _symmetry_space_group_name_H-M 'P n n m' _symmetry_Int_Tables_number 58 _symmetry_cell_setting orthorhombic 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' loop_ _atom_type_symbol _atom_type_oxidation_number As5+ 5.000 Zn2+ 2.000 O2- -2.000 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 As1 As5+ 4 g 0.244 0.244 0. 1. 0 d Zn1 Zn2+ 4 g 0.369 0.361 0.5 1. 0 d Zn2 Zn2+ 4 f 0.5 0. 0.25 1. 0 d O1 O2- 4 g 0.105 0.116 0. 1. 0 d O2 O2- 4 g 0.403 0.139 0. 1. 0 d O3 O2- 4 g 0.403 0.139 0.5 1. 1 d O4 O2- 8 h 0.236 0.361 0.25 1. 0 d H1 H1+ 4 g -1. -1. -1. 1. 0 dum