#------------------------------------------------------------------------------ #$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1005038.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_1005038 _chemical_name_systematic 'Strontium copper(I) nitride' _chemical_formula_structural 'Sr Cu N' _chemical_formula_sum 'Cu N Sr' _publ_section_title ; The crystal structure of Sr6 Cu3 N5 with isolated, bent (Cu(I)2 N3)(7-) anions and the single crystal structural determination of Sr Cu N ; loop_ _publ_author_name 'DiSalvo, F J' 'Trail, S S' 'Yamane, H' 'Brese, N E' _journal_name_full 'Journal of Alloys Compd.' _journal_coden_ASTM JALCEU _journal_volume 255 _journal_year 1997 _journal_page_first 122 _journal_page_last 129 _cell_length_a 9.045(2) _cell_length_b 13.234(3) _cell_length_c 5.388(1) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 645.0 _cell_formula_units_Z 12 _symmetry_space_group_name_H-M 'P n m a' _symmetry_Int_Tables_number 62 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2+x,1/2-y,1/2-z' '-x,1/2+y,-z' '1/2-x,-y,1/2+z' '-x,-y,-z' '1/2-x,1/2+y,1/2+z' 'x,1/2-y,z' '1/2+x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Cu1+ 1.000 Sr2+ 2.000 N3- -3.000 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 Cu1 Cu1+ 8 d 0.1796(2) 0.1564(1) 0.5129(4) 1. 0 d Sr1 Sr2+ 8 d 0.3403(2) 0.0866(1) 0.0157(3) 1. 0 d N1 N3- 8 d 0.0871(16) 0.0799(9) 0.7566(25) 1. 0 d Sr2 Sr2+ 4 c 0.0226(2) 0.25 0.0020(4) 1. 0 d N2 N3- 4 c 0.2576(21) 0.25 0.2844(32) 1. 0 d Cu2 Cu1+ 4 a 0. 0. 0. 1. 0 d loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_22 _atom_site_aniso_U_23 _atom_site_aniso_U_33 Cu1 0.007(1) -0.001(1) 0.002(1) 0.004(1) 0.002(1) 0.004(1) Sr1 0.004(1) 0.001(1) -0.002(1) 0.005(1) -0.001(1) 0.005(1) N1 0.007(7) 0.002(6) 0.007(5) 0.009(7) 0.007(6) 0.010(6) Sr2 0.002(1) 0. 0.001(1) 0.005(1) 0. 0.004(1) N2 0.005(9) 0. 0.003(8) 0.002(9) 0. 0.004(8) Cu2 0.007(1) -0.003(1) 0.001(2) 0.008(2) 0.001(1) 0.005(2) _refine_ls_R_factor_all 0.046 _cod_database_code 1005038