#------------------------------------------------------------------------------ #$Date: 2013-03-28 18:17:04 +0200 (Thu, 28 Mar 2013) $ #$Revision: 77586 $ #$URL: file:///home/coder/svn-repositories/cod/cif/5/00/02/5000219.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_5000219 loop_ _publ_author_name 'Schiferl, D' 'Barrett, C S' _publ_section_title ; The Crystal Structure of Arsenic at 4.2, 78 and 299K ; _journal_name_full 'Journal of Applied Crystallography' _journal_page_first 30 _journal_page_last 36 _journal_volume 2 _journal_year 1969 _chemical_formula_structural As _chemical_formula_sum As _chemical_name_common Arsenic _chemical_name_mineral Arsenic _chemical_name_systematic Arsenic _space_group_IT_number 166 _symmetry_cell_setting trigonal _symmetry_space_group_name_Hall '-R 3 2"' _symmetry_space_group_name_H-M 'R -3 m :H' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 6 _cell_length_a 3.7597(1) _cell_length_b 3.7597(1) _cell_length_c 10.4412(2) _cell_volume 127.8 _refine_ls_R_factor_all 0.039 _[local]_cod_cif_authors_sg_H-M 'R -3 m H' _cod_database_code 5000219 loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z y-x,-x,z -y,-x,z x,x-y,z y-x,y,z -x,-y,-z y,y-x,-z x-y,x,-z y,x,-z -x,y-x,-z x-y,-y,-z 1/3+x,2/3+y,2/3+z 2/3+x,1/3+y,1/3+z 1/3-y,2/3+x-y,2/3+z 2/3-y,1/3+x-y,1/3+z 1/3-x+y,2/3-x,2/3+z 2/3-x+y,1/3-x,1/3+z 1/3-y,2/3-x,2/3+z 2/3-y,1/3-x,1/3+z 1/3+x,2/3+x-y,2/3+z 2/3+x,1/3+x-y,1/3+z 1/3-x+y,2/3+y,2/3+z 2/3-x+y,1/3+y,1/3+z 1/3-x,2/3-y,2/3-z 2/3-x,1/3-y,1/3-z 1/3+y,2/3-x+y,2/3-z 2/3+y,1/3-x+y,1/3-z 1/3+x-y,2/3+x,2/3-z 2/3+x-y,1/3+x,1/3-z 1/3+y,2/3+x,2/3-z 2/3+y,1/3+x,1/3-z 1/3-x,2/3-x+y,2/3-z 2/3-x,1/3-x+y,1/3-z 1/3+x-y,2/3-y,2/3-z 2/3+x-y,1/3-y,1/3-z 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 As1 As0 6 c 0. 0. 0.22764(2) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number As0 0.000