#------------------------------------------------------------------------------ #$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1008287.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_1008287 _chemical_name_systematic 'Magnesium nickel deuteride (2/1/.3)' _chemical_formula_structural 'Mg2 Ni D.30' _chemical_formula_sum 'D.3 Mg2 Ni' _publ_section_title ; Structural and hydrogen diffusion study in the Mg~2~ Ni H~2~ system ; loop_ _publ_author_name 'Darriet, B' 'Soubeyroux, J L' 'Pezat, M' 'Fruchart, D' _journal_name_full 'Journal of the Less-Common Metals' _journal_coden_ASTM JCOMAH _journal_volume 103 _journal_year 1984 _journal_page_first 153 _journal_page_last 162 _cell_length_a 5.256 _cell_length_b 5.256 _cell_length_c 13.435 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 321.4 _cell_formula_units_Z 6 _symmetry_space_group_name_H-M 'P 62 2 2' _symmetry_Int_Tables_number 180 _symmetry_cell_setting hexagonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-y,x-y,2/3+z' 'y-x,-x,1/3+z' '-x,-y,z' 'y,y-x,2/3+z' 'x-y,x,1/3+z' 'y,x,2/3-z' 'x-y,-y,-z' '-x,y-x,1/3-z' '-y,-x,2/3-z' 'y-x,y,-z' 'x,x-y,1/3-z' loop_ _atom_type_symbol _atom_type_oxidation_number Ni0 0.000 Mg0 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 Ni1 Ni0 3 b 0. 0. 0.5 1. 0 d Ni2 Ni0 3 d 0.5 0. 0.5 1. 0 d Mg1 Mg0 6 f 0.5 0. 0.123(1) 1. 0 d Mg2 Mg0 6 i 0.158(4) 0.316(8) 0. 1. 0 d D1 D0 12 k 0.32(2) 0.20(2) 0.540(12) 0.05(7) 0 d D2 D0 6 j 0.670(11) 0.340(22) 0.5 0.135(20) 0 d _refine_ls_R_factor_all 0.05