#------------------------------------------------------------------------------
#$Date: 2011-09-17 21:27:16 +0100 (Sat, 17 Sep 2011) $
#$Revision: 26029 $
#$URL: svn://www.crystallography.net/cod/cif/2/2102112.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# 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_2102112
_space_group_IT_number           141
_symmetry_space_group_name_Hall  '-I 4bd 2'
_symmetry_space_group_name_H-M   'I 41/a m d :2'
_[local]_cod_cif_authors_sg_H-M  'I 41/a m d'
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           tetragonal
_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                   5.20713(5)
_cell_length_b                   5.20713
_cell_length_c                   7.40141(12)
_computing_structure_refinement  GSAS
_diffrn_radiation_wavelength     .7508
_refine_ls_goodness_of_fit_all   3.69
_refine_ls_number_parameters     11
_refine_ls_shift/esd_max         .05
_refine_ls_shift/esd_mean        .02
_reflns_number_observed          0
_[local]_cod_data_source_file    os0043.cif
loop_
_symmetry_equiv_pos_as_xyz
+x,+y,+z
-y+1/4,+x+3/4,+z+1/4
-x+1/2,-y,+z+1/2
+y+1/4,-x+1/4,+z+3/4
-x,+y,+z
-y+1/4,-x+3/4,+z+1/4
+x+1/2,-y,+z+1/2
+y+1/4,+x+1/4,+z+3/4
-x,-y,-z
+y+3/4,-x+1/4,-z+3/4
+x+1/2,+y,-z+1/2
-y+3/4,+x+3/4,-z+1/4
+x,-y,-z
+y+3/4,+x+1/4,-z+3/4
-x+1/2,+y,-z+1/2
-y+3/4,-x+3/4,-z+1/4
+x+1/2,+y+1/2,+z+1/2
-y+3/4,+x+1/4,+z+3/4
-x,-y+1/2,+z
+y+3/4,-x+3/4,+z+1/4
-x+1/2,+y+1/2,+z+1/2
-y+3/4,-x+1/4,+z+3/4
+x,-y+1/2,+z
+y+3/4,+x+3/4,+z+1/4
-x+1/2,-y+1/2,-z+1/2
+y+1/4,-x+3/4,-z+1/4
+x,+y+1/2,-z
-y+1/4,+x+1/4,-z+3/4
+x+1/2,-y+1/2,-z+1/2
+y+1/4,+x+3/4,-z+1/4
-x,+y+1/2,-z
-y+1/4,-x+1/4,-z+3/4
loop_
_atom_type_symbol
V
HF
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
V .0 .0 .0 .0097(7) Uiso 1.0
Hf .0 .25 .375 .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
V V 2_545 2.6102(2) yes
V V 19_545 2.6036(3) yes
V Hf 1_555 3.0657(4) yes
V Hf 4_554 3.0544(3) yes
Hf Hf 6_545 3.1941(3) yes
_cod_database_code 2102112