#------------------------------------------------------------------------------ #$Date: 2012-02-28 14:14:52 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35911 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/01/1000155.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_1000155 _chemical_name_systematic 'Lanthanum nickel deuteride (1/5/7)' _chemical_formula_structural 'La Ni5 D7' _chemical_formula_analytical 'La Ni5 D6.7' _chemical_formula_sum 'D7 La Ni5' _publ_section_title ; A new study of the structure of La Ni5 D6.7 using a modified Rietveld method for the refinement of neutron powder diffraction data ; loop_ _publ_author_name 'Lartigue, C' 'Le Bail, A' 'Percheron Guegan, A' _journal_name_full 'Journal of the Less-Common Metals' _journal_coden_ASTM JCOMAH _journal_volume 129 _journal_year 1987 _journal_page_first 65 _journal_page_last 76 _cell_length_a 5.409(2) _cell_length_b 5.409(2) _cell_length_c 8.600(1) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 217.9 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P 63 m c' _symmetry_Int_Tables_number 186 _symmetry_cell_setting hexagonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-y,x-y,z' 'y-x,-x,z' '-y,-x,z' 'y-x,y,z' 'x,x-y,z' '-x,-y,1/2+z' 'y,y-x,1/2+z' 'x-y,x,1/2+z' 'y,x,1/2+z' 'x-y,-y,1/2+z' '-x,y-x,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number La0 0.000 Ni0 0.000 D0 0.000 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 La1 La0 2 a 0. 0. 0.9999(9) 1. 0 d Ni1 Ni0 2 b 0.3333 0.6667 0.0011(11) 1. 0 d Ni2 Ni0 2 b 0.3333 0.6667 0.4881(11) 1. 0 d Ni3 Ni0 6 c 0.4999(7) 0.5001(7) 0.25 1. 0 d D1 D0 2 b 0.3333 0.6667 0.8203(9) 0.72(2) 0 d D2 D0 2 b 0.3333 0.6667 0.3203(9) 0.28 0 d D3 D0 6 c 0.1593(5) 0.8407 0.2952(9) 0.89(1) 0 d D4 D0 6 c 0.1593(5) 0.8407 0.7952(9) 0.11 0 d D5 D0 6 c 0.5069(16) 0.4931 0.0577(4) 1. 0 d _refine_ls_R_factor_all 0.081 _cod_database_code 1000155