#------------------------------------------------------------------------------ #$Date: 2008-04-03 11:11:48 +0100 (Thu, 03 Apr 2008) $ #$Revision: 326 $ #$URL: svn://www.crystallography.net/cod/cif/2/2102113.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_2102113 loop_ _publ_author_name 'Zhao, Yusheng' 'Chu, Fuming' 'Von Dreele, Robert B.' 'Zhu, Qing' _publ_section_title ; Structural phase transitions of HfV~2~ at low temperatures ; _journal_issue 4 _journal_name_full 'Acta Crystallographica Section B' _journal_page_first 601 _journal_page_last 606 _journal_volume 56 _journal_year 2000 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M 'I m m a' _audit_creation_method 'from EXP file using GSAS2CIF' _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_length_a 5.19096(8) _cell_length_b 5.21235(9) _cell_length_c 7.41751(10) _computing_structure_refinement GSAS _diffrn_radiation_wavelength .7508 _refine_ls_goodness_of_fit_all 4.24 _refine_ls_number_parameters 14 _refine_ls_shift/esd_max 2.32 _refine_ls_shift/esd_mean .24 _reflns_number_observed 0 _[local]_cod_data_source_file os0043.cif loop_ _symmetry_equiv_pos_as_xyz +x,+y,+z -x,+y,+z +x,-y+1/2,+z -x,-y+1/2,+z -x,-y,-z +x,-y,-z -x,+y+1/2,-z +x,+y+1/2,-z +x+1/2,+y+1/2,+z+1/2 -x+1/2,+y+1/2,+z+1/2 +x+1/2,-y,+z+1/2 -x+1/2,-y,+z+1/2 -x+1/2,-y+1/2,-z+1/2 +x+1/2,-y+1/2,-z+1/2 -x+1/2,+y,-z+1/2 +x+1/2,+y,-z+1/2 loop_ _atom_type_symbol HF V loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_thermal_displace_type _atom_site_occupancy V1 .0 .0 .0 .0114(18) Uiso 1.0 V2 .25 .75 .25 .021(2) Uiso 1.0 Hf .0 .25 .3753(4) .005 Uiso 1.0 loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag V1 V1 3_555 2.6062(5) yes V1 V2 1_545 2.6117(2) yes V1 V2 3_555 2.6117(2) yes V1 V2 2_555 2.5955(4) yes V1 Hf 1_555 3.073(3) yes V1 Hf 13_555 3.0481(9) yes V1 Hf 1_555 3.0560(9) yes V1 Hf 5_566 3.068(3) yes Hf Hf 5_566 3.196(4) yes Hf Hf 13_555 3.192(4) yes