data_global _chemical_name_mineral 'Adamantane' loop_ _publ_author_name 'Donohue J' 'Goodman S H' _journal_name_full 'Acta Crystallographica' _journal_volume 22 _journal_year 1967 _journal_page_first 352 _journal_page_last 354 _publ_section_title ; The crystal structure of adamantane: An example of a false minimum in least squares Note: low temperature phase ; _database_code_amcsd 0009308 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'C5 H8' _cell_length_a 6.60 _cell_length_b 6.60 _cell_length_c 8.81 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 383.764 _exptl_crystal_density_diffrn 1.179 _symmetry_space_group_name_H-M 'P -4 21 c' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2-y,1/2-x,1/2+z' 'y,-x,-z' '1/2-x,1/2+y,1/2-z' '-x,-y,z' '1/2+y,1/2+x,1/2+z' '-y,x,-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 C1 -0.02960 0.18700 0.09990 C2 0.15800 0.21870 -0.00090 C3 0.00000 0.00000 0.20060 H1 -0.05400 0.31700 0.16400 H2 0.14100 0.01700 0.26700 H3 0.29000 0.23700 0.07000 H4 0.12900 0.35400 -0.06400