#------------------------------------------------------------------------------ #$Date: 2008-01-13 22:15:36 +0000 (Sun, 13 Jan 2008) $ #$Revision: 14 $ #$URL: svn://www.crystallography.net/cod/cif/2/2002694.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_2002694 _chemical_name_systematic 'Tristrontium tecto-titanodecagallate' _chemical_formula_structural 'Sr3 (Ti Ga10 O20)' _chemical_formula_sum 'Ga10 O20 Sr3 Ti' _publ_section_title ; Einkristall-Roentgenstrukturanalyse von Sr3 Ti Ga10 O20 ; loop_ _publ_author_name 'Strunk, M' 'Mueller-Buschbaum, Hk' _journal_name_full ; Zeitschrift fuer Anorganische und Allgemeine Chemie ; _journal_volume 620 _journal_year 1994 _journal_page_first 323 _journal_page_last 325 _cell_length_a 15.451(4) _cell_length_b 11.579(3) _cell_length_c 5.051(2) _cell_angle_alpha 90 _cell_angle_beta 108.57(1) _cell_angle_gamma 90 _cell_volume 856.6 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'C 1 2/m 1' _symmetry_Int_Tables_number 12 _symmetry_cell_setting monoclinic 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_type_symbol _atom_type_oxidation_number Sr2+ 2.000 Ti4+ 4.000 Ga3+ 3.000 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 Sr1 Sr2+ 2 a 0. 0. 0. 1. 0 d Sr2 Sr2+ 4 i 0.2781(1) 0. 0.2776(4) 1. 0 d Ti1 Ti4+ 2 b 0. 0.5 0. 0.5 0 d Ga1 Ga3+ 2 b 0. 0.5 0. 0.5 0 d Ti2 Ti4+ 4 h 0. 0.3658(2) 0.5 0.25 0 d Ga2 Ga3+ 4 h 0. 0.3658(2) 0.5 0.75 0 d Ga3 Ga3+ 8 j 0.1395(1) 0.2841(1) 0.1658(3) 1. 0 d Ga4 Ga3+ 8 j 0.1430(1) 0.1354(1) 0.6535(3) 1. 0 d O1 O2- 4 i 0.567(1) 0. 0.390(1) 1. 0 d O2 O2- 8 j 0.081(1) 0.253(1) 0.428(1) 1. 0 d O3 O2- 8 j 0.425(1) 0.119(1) 0.109(1) 1. 0 d O4 O2- 4 i 0.905(1) 0. 0.499(1) 1. 0 d O5 O2- 8 j 0.742(1) 0.137(1) 0.343(1) 1. 0 d O6 O2- 8 j 0.141 0.142(1) 0.012(1) 1. 0 d loop_ _atom_site_aniso_label _atom_site_aniso_B_11 _atom_site_aniso_B_12 _atom_site_aniso_B_13 _atom_site_aniso_B_22 _atom_site_aniso_B_23 _atom_site_aniso_B_33 Sr1 0.60(8) 0. -0.44(72) 1.04(10) 0. 1.32(10) Sr2 0.68(6) 0. -0.56(6) 0.42(6) 0. 1.94(8) Ti1 0.89(12) 0. 0.17(10) 0.58(11) 0. 0.32(10) Ga1 0.89(12) 0. 0.17(10) 0.58(11) 0. 0.32(10) Ti2 0.60(7) 0. 0.21(6) 0.51(7) 0. 0.42(6) Ga2 0.60(7) 0. 0.21(6) 0.51(7) 0. 0.42(6) Ga3 0.68(5) 0.03(4) 0.31(3) 0.48(4) 0.07(4) 0.34(4) Ga4 1.03(5) 0.06(4) 0.30(4) 0.60(5) 0.06(4) 0.46(5) _refine_ls_R_factor_all 0.081