data_global _amcsd_formula_title 'Cu Nb2 O6' loop_ _publ_author_name 'Norwig J' 'Weitzel H' 'Paulus H' 'Lautenschlaeger G' 'Rodriguez-Carvajal J' 'Fuess H' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 115 _journal_year 1995 _journal_page_first 476 _journal_page_last 483 _publ_section_title ; Structural relations in mixed oxides Cux Zn1-x Nb2 O6 _cod_database_code 1006090 ; _database_code_amcsd 0013854 _chemical_formula_sum 'Cu Nb2 O6' _cell_length_a 5.0064 _cell_length_b 14.1733 _cell_length_c 5.7615 _cell_angle_alpha 90 _cell_angle_beta 91.672 _cell_angle_gamma 90 _cell_volume 408.646 _exptl_crystal_density_diffrn 5.613 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Cu1 0.25020 0.00020 0.34200 Nb1 0.73700 0.16070 0.20370 Nb2 0.23530 0.16150 0.84660 O1 0.06270 0.09650 0.13780 O2 0.57370 0.07810 0.40090 O3 0.40370 0.24510 0.14480 O4 0.90020 0.24480 0.90860 O5 0.55600 0.09690 0.92290 O6 0.06430 0.07990 0.65190