data_global _amcsd_formula_title 'Cl8 N4 P4' loop_ _publ_author_name 'Ketelaar J' 'De Vries T' _journal_name_full 'Recueil des Travaux Chimiques des Pays-Bas et de la Belgique' _journal_volume 58 _journal_year 1939 _journal_page_first 1081 _journal_page_last 1099 _publ_section_title ; The Crystal Structure of Tetra Phosphonitrile Chloride , $= P4N4Cl8 _cod_database_code 1010890 ; _database_code_amcsd 0017618 _chemical_formula_sum 'Cl2 P N' _cell_length_a 10.82 _cell_length_b 10.82 _cell_length_c 5.95 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 696.581 _exptl_crystal_density_diffrn 2.210 _symmetry_space_group_name_H-M 'P 42/n' loop_ _space_group_symop_operation_xyz 'x,y,z' 'y,-x,-z' '1/2-y,1/2+x,1/2+z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '-y,x,-z' '1/2+y,1/2-x,1/2+z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Cl1 0.10200 0.19900 0.11000 Cl2 0.05700 0.34400 0.56500 P1 0.04100 0.17600 0.42000 N1 0.12500 0.10500 0.61500