#------------------------------------------------------------------------------ #$Date: 2014-02-06 09:57:56 +0000 (Thu, 06 Feb 2014) $ #$Revision: 100566 $ #$URL: svn://www.crystallography.net/cod/cif/8/10/16/8101615.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_8101615 loop_ _publ_author_name 'Gesing, Thorsten M.' 'Uecker, Reinhard' 'Buhl, J.-Christian' _publ_section_title ; Crystal structure of Praseodum Gallium Oxide Pr4Ga2O9 ; _journal_name_full 'Zeitschrift f\"ur Kristallographie - New Crystal Structures' _journal_volume 214 _journal_year 1999 _chemical_formula_moiety SrPrGa3O7 _chemical_formula_structural 'Sr Pr Ga3 O7' _chemical_formula_sum 'Ga6 O14 Pr2 Sr2' _chemical_formula_weight 549.69 _chemical_name_common SrPrGa3O7 _space_group_IT_number 140 _symmetry_cell_setting tetragonal _symmetry_space_group_name_Hall '-I 4 2c' _symmetry_space_group_name_H-M 'I 4/m c m' _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_formula_units_Z 2 _cell_length_a 8.01978(19) _cell_length_b 8.01978(19) _cell_length_c 5.29905(14) _cell_measurement_temperature 295(2) _cell_volume 340.82(1) _diffrn_ambient_temperature 295(2) _pd_calc_method 'Rietveld Refinement' _pd_proc_ls_prof_R_factor 0.0261 _pd_proc_ls_prof_wR_expected 0.0162 _pd_proc_ls_prof_wR_factor 0.0395 _[local]_cod_cif_authors_sg_H-M 'P -4 21 m' _[local]_cod_chemical_formula_sum_orig 'Sr2 Pr2 Ga6 O14' _cod_depositor_comments ; Added _atom_site_type_symbol label and values. Antanas Vaitkus 2013-04-12 ; _cod_database_code 8101615 #BEGIN Tags that were not found in dictionaries: _pd_proc_ls_prof_r_factor_on_i 0.0248 _pd_proc_ls_prof_r_factor_on_f 0.0126 #END Tags that were not found in dictionaries loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-y,z x,-y,1/2+z -x,y,1/2+z -y,x,z y,-x,z y,x,1/2+z -y,-x,1/2+z -x,-y,-z x,y,-z -x,y,1/2-z x,-y,1/2-z y,-x,-z -y,x,-z -y,-x,1/2-z y,x,1/2-z 1/2+x,1/2+y,1/2+z 1/2-x,1/2-y,1/2+z 1/2+x,1/2-y,z 1/2-x,1/2+y,z 1/2-y,1/2+x,1/2+z 1/2+y,1/2-x,1/2+z 1/2+y,1/2+x,z 1/2-y,1/2-x,z 1/2-x,1/2-y,1/2-z 1/2+x,1/2+y,1/2-z 1/2-x,1/2+y,-z 1/2+x,1/2-y,-z 1/2+y,1/2-x,1/2-z 1/2-y,1/2+x,1/2-z 1/2-y,1/2-x,-z 1/2+y,1/2+x,-z loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_thermal_displace_type _atom_site_U_iso_or_equiv _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol SR(1) Sr 0.16205(93) 0.66205 0.50926(346) 0.5 Uiso 0.006 4 e PR(1) Pr 0.16205(93) 0.66205 0.50926(346) 0.5 Uiso 0.006 4 e GA(1) Ga 0.64368(118) 0.14368 0.97516(477) 1.0 Uiso 0.006 4 e GA(2) Ga 0.0 0.0 0.0 1.0 Uiso 0.009 2 a O(1) O 0.08442(470) 0.15987(636) 0.21242(680) 1.0 Uiso 0.012 8 f O(2) O 0.63374(735) 0.13374 0.35603(817) 1.0 Uiso 0.012 4 e O(3) O 0.0 0.5 0.19315(737) 1.0 Uiso 0.012 2 c loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_publ_flag Sr1 O2 2.45(4) y Sr1 O3 2.49(3) y Sr1 O2 2.49(2) y Sr1 O2 2.49(6) y Sr1 O1 2.51(4) y Sr1 O1 2.51(4) y Ga1 O3 1.86(2) y Ga1 O1 1.92(5) y Ga1 O1 1.92(5) y Ga1 O2 2.02(5) y Ga2 O1 1.84(4) y Ga2 O1 1.84(4) y Ga2 O1 1.84(4) y Ga2 O1 1.84(4) y