#------------------------------------------------------------------------------ #$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1001822.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_1001822 _chemical_name_systematic ; Strontium manganese(III) boron oxide (4/3.2/0.8/10) ; _chemical_formula_structural 'Sr4 Mn3 (B0.8 Mn0.2) O10' _chemical_formula_sum 'B.8 Mn3.2 O10 Sr4' _publ_section_title ; A new manganese oxyborate, Sr4 Mn3 (B1-x Mnx) O10, closely related to the perovskite structure type ; loop_ _publ_author_name 'Pelloquin, D' 'Hervieu, M' 'Michel, C' 'Nguyen, N' 'Raveau, B' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 134 _journal_year 1997 _journal_page_first 395 _journal_page_last 408 _cell_length_a 3.7865(1) _cell_length_b 15.8540(4) _cell_length_c 7.6540(2) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 459.5 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'A m m 2' _symmetry_Int_Tables_number 38 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '-x,y,z' 'x,-y,z' 'x,1/2+y,1/2+z' '-x,1/2-y,1/2+z' '-x,1/2+y,1/2+z' 'x,1/2-y,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Mn3+ 3.000 B3+ 3.000 Sr2+ 2.000 O2- -2.000 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 Mn1 Mn3+ 2 a 0. 0. 0.0078(36) 1. 0 d Mn2 Mn3+ 4 d 0. 0.25 0. 1. 0 d B1 B3+ 2 a 0. 0. 0.5 0.8 0 d Mn3 Mn3+ 2 a 0. 0. 0.5 0.2 0 d Sr1 Sr2+ 4 e 0.5 0.3665(3) 0.2538(22) 1. 0 d Sr2 Sr2+ 4 e 0.5 0.1263(3) 0.2284(24) 1. 0 d O1 O2- 2 b 0.5 0. 0. 1. 0 d O2 O2- 4 d 0. 0.1211(16) 0. 1. 0 d O3 O2- 4 e 0.5 0.2669(15) 0. 1. 0 d O4 O2- 4 d 0. 0.25 0.25 1. 0 d O5 O2- 2 a 0. 0. 0.3159(47) 1. 0 d O6 O2- 4 d 0. 0.4243(15) -0.0882(32) 1. 0 d _refine_ls_R_factor_all 0.065