#------------------------------------------------------------------------------ #$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1100025.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_1100025 _chemical_name_systematic 'Strontium calcium carbonate' _chemical_name_mineral 'Carbocernaite' _journal_volume 27 _journal_year 1982 _journal_page_first 76 _journal_page_last 80 _cell_length_a 5.214(3) _cell_length_b 6.430(3) _cell_length_c 7.301(12) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 244.8 _cell_formula_units_Z 2 _exptl_crystal_density_meas 3.53 _symmetry_space_group_name_H-M 'P m c 21' _symmetry_Int_Tables_number 26 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,y,z' '-x,-y,1/2+z' 'x,-y,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Sr2+ 2.000 Ca2+ 2.000 O2- -2.000 C4+ 4.000 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 Sr1 Sr2+ 2 a 0. 0.1168(4) 0.2555(11) 1. 0 d Ca1 Ca2+ 2 b 0.5 0.4844(14) 0.5495(10) 1. 0 d O1 O2- 4 c 0.2097(26) 0.4907(24) 0.2951(20) 1. 0 d O2 O2- 4 c 0.2850(33) 0.1288(27) 0.5452(23) 1. 0 d O3 O2- 2 a 0. 0.2313(43) 0.9204(41) 1. 0 d O4 O2- 2 b 0.5 0.1433(41) 0.1462(36) 1. 0 d C1 C4+ 2 a 0. 0.4176(40) 0.8436(38) 1. 0 d C2 C4+ 2 b 0.5 0.0343(49) 0.5782(45) 1. 0 d