#------------------------------------------------------------------------------ #$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9009704.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_9009704 loop_ _publ_author_name 'Catti M' 'Ferraris G' 'Ivaldi G' _publ_section_title ; Hydrogen bonding in the crystalline state. Structure of talmessite, Ca2(Mg,Co)(AsO4)2*2H2O, and crystal chemistry of related minerals Locality: Bou-Azzer, Morocco ; _journal_name_full 'Bulletin de Mineralogie' _journal_page_first 230 _journal_page_last 236 _journal_volume 100 _journal_year 1977 _chemical_formula_sum 'As2 Ca2 Co0.35 H1.02 Mg0.65 O10' _[local]_cod_chemical_formula_sum_orig 'Ca2 (Mg.65 Co.35) As2 O10 H1.02' _chemical_name_mineral Talmessite _symmetry_space_group_name_H-M 'P -1' _cell_angle_alpha 97.3 _cell_angle_beta 108.7 _cell_angle_gamma 108.1 _cell_length_a 5.874 _cell_length_b 6.943 _cell_length_c 5.537 _cell_volume 196.762 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Ca 0.29490 0.76220 0.65290 1.00000 Mg 0.00000 0.00000 0.00000 0.65000 Co 0.00000 0.00000 0.00000 0.35000 As 0.33410 0.24600 0.67030 1.00000 O1 0.34200 0.12720 0.92170 1.00000 O2 0.23850 0.05040 0.39860 1.00000 O3 0.15500 0.39160 0.64120 1.00000 O4 0.63950 0.38640 0.71490 1.00000 Wat 0.95330 0.27780 0.07450 1.00000 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 Ca 0.00950 0.01608 0.00975 0.00722 0.00545 -0.00165 Mg 0.01380 0.02229 0.01672 0.00912 0.00469 -0.00279 Co 0.01380 0.02229 0.01672 0.00912 0.00469 -0.00279 As 0.00266 0.00823 0.00393 0.00165 0.00127 -0.00241 O1 0.01292 0.01799 0.01380 0.00747 0.00709 0.00418 O2 0.01127 0.01874 0.00925 0.00887 -0.00127 -0.00811 O3 0.01343 0.01140 0.01811 0.00798 0.00621 0.00127 O4 0.01140 0.01786 0.01925 0.00203 0.00950 -0.00367 Wat 0.00886 0.01368 0.00507 0.00570 0.00393 -0.00025 _cod_database_code 9009704