#------------------------------------------------------------------------------ #$Date: 2023-03-26 10:30:59 +0300 (Sun, 26 Mar 2023) $ #$Revision: 282067 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/85/9008524.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided the American Mineralogist Crystal Structure Database, # http://rruff.geo.arizona.edu/AMS/amcsd.php # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_9008524 loop_ _publ_author_name 'Wyckoff, R. W. G.' _publ_section_title ; Second edition. Interscience Publishers, New York, New York Double hexagonal closest packed, dhcp, structure ; _journal_name_full 'Crystal Structures' _journal_page_first 7 _journal_page_last 83 _journal_volume 1 _journal_year 1963 _chemical_formula_sum Am _chemical_name_common Americium _chemical_name_mineral Americium _space_group_IT_number 194 _symmetry_space_group_name_Hall '-P 6c 2c' _symmetry_space_group_name_H-M 'P 63/m m c' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_length_a 3.474 _cell_length_b 3.474 _cell_length_c 11.25 _cell_volume 117.583 _database_code_amcsd 0011202 _exptl_crystal_density_diffrn 13.727 _cod_database_code 9008524 loop_ _space_group_symop_operation_xyz x,y,z -x,-x+y,1/2+z x,x-y,1/2-z -x+y,-x,1/2-z x-y,x,1/2+z -y,-x,z y,x,-z y,-x+y,-z -y,x-y,z x-y,-y,1/2+z -x+y,y,1/2-z x,y,1/2-z -x,-y,1/2+z x,x-y,z -x,-x+y,-z x-y,x,-z -x+y,-x,z y,x,1/2+z -y,-x,1/2-z -y,x-y,1/2-z y,-x+y,1/2+z -x+y,y,z x-y,-y,-z -x,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Am1 0.00000 0.00000 0.00000 Am2 0.33333 0.66667 0.75000 loop_ _cod_related_entry_id _cod_related_entry_database _cod_related_entry_code 1 ChemSpider 22405 2 AMCSD 0011202