data_1001224 _chemical_name_systematic 'Digermanium dinitride oxide' _chemical_formula_structural 'Ge2 N2 O' _chemical_formula_sum 'Ge2 N2 O' _publ_section_title ; Time-of-flight neutron diffraction study of germanium nitride oxide, Ge~2~ N~2~ O ; loop_ _publ_author_name 'Jorgensen, J D' 'Srinivasa, S R' 'Labbe, J C' 'Roult, G' _journal_name_full 'Acta Crystallographica B (24,1968-38,1982)' _journal_coden_ASTM ACBCAR _journal_volume 35 _journal_year 1979 _journal_page_first 141 _journal_page_last 142 _cell_length_a 9.312(1) _cell_length_b 5.755(1) _cell_length_c 5.105(1) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 273.6 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'C m c 21' _symmetry_Int_Tables_number 36 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,y,z' '-x,-y,1/2+z' 'x,-y,1/2+z' '1/2+x,1/2+y,z' '1/2-x,1/2+y,z' '1/2-x,1/2-y,1/2+z' '1/2+x,1/2-y,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Ge4+ 4.000 N3- -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 Ge1 Ge4+ 8 b 0.173(1) 0.149(2) 0.321(2) 1. 0 d N1 N3- 8 b 0.205(1) 0.136(1) 0.666(2) 1. 0 d O1 O2- 4 a 0. 0.246(2) 0.23 1. 0 d _refine_ls_R_factor_all 0.039