data_global _amcsd_formula_title 'Ba Cu N' loop_ _publ_author_name 'Niewa R' 'DiSalvo F' _journal_name_full 'Journal of Alloys and Compounds' _journal_volume 279 _journal_year 1998 _journal_page_first 153 _journal_page_last 160 _publ_section_title ; Breaking up chains: the nitridocuprates(I) Ba(CuN), Ba16((CuN)8)(Cu2N3)(Cu3N4) and Ca4Ba(CuN2)2 _cod_database_code 1005050 ; _database_code_amcsd 0012818 _chemical_formula_sum 'Ba Cu N' _cell_length_a 14.462 _cell_length_b 5.5700 _cell_length_c 9.478 _cell_angle_alpha 90 _cell_angle_beta 102.960 _cell_angle_gamma 90 _cell_volume 744.036 _exptl_crystal_density_diffrn 5.755 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ba1 0.33098 0.26370 0.37120 Ba2 0.00000 0.28020 0.25000 Cu1 0.42660 0.26510 0.06060 Cu2 0.25000 0.25000 0.00000 N1 0.34160 0.03900 0.10900 N2 0.00000 0.00000 0.00000 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Ba1 0.00700 0.01100 0.00810 0.00010 0.00420 -0.00060 Ba2 0.00730 0.01050 0.00760 0.00000 0.00270 0.00000 Cu1 0.00500 0.01040 0.01200 -0.00140 0.00510 0.00170 Cu2 0.00300 0.01100 0.01000 0.00070 0.00340 0.00210 N1 0.00800 0.01100 0.01800 -0.00100 0.00800 0.00100 N2 0.01500 0.01400 0.01900 0.00200 0.00900 -0.00200