data_global _amcsd_formula_title 'Ca N2' loop_ _publ_author_name 'Dehlinger U' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 65 _journal_year 1927 _journal_page_first 286 _journal_page_last 290 _publ_section_title ; Ueber die Rumgruppe von (C N2 H2)2 und die Kristallstruktur von Ca C N2. _cod_database_code 1010503 ; _database_code_amcsd 0017418 _chemical_formula_sum 'Ca C N2' _cell_length_a 5.11 _cell_length_b 5.11 _cell_length_c 5.11 _cell_angle_alpha 43.83 _cell_angle_beta 43.83 _cell_angle_gamma 43.83 _cell_volume 58.102 _exptl_crystal_density_diffrn 2.289 _symmetry_space_group_name_H-M 'R -3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-z,-y' '-z,-x,-y' 'y,x,z' 'y,z,x' '-z,-y,-x' '-x,-y,-z' 'x,z,y' 'z,x,y' '-y,-x,-z' '-y,-z,-x' 'z,y,x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ca1 0.00000 0.00000 0.00000 C1 0.50000 0.50000 0.50000 N1 0.37000 0.37000 0.37000