#------------------------------------------------------------------------------
#$Date: 2008-01-13 22:15:36 +0000 (Sun, 13 Jan 2008) $
#$Revision: 14 $
#$URL: svn://www.crystallography.net/cod/cif/4/4000559.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_4000559
_journal_name_full   'Chemistry of Materials'
_journal_year       2005
_chemical_formula_sum                    'Co2 Si7 Yb2.5'
_chemical_formula_weight                 747.1
_symmetry_cell_setting                   monoclinic
_symmetry_space_group_name_H-M           'P 21/c'
_symmetry_space_group_name_Hall          '-P 2ycb'
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
 1   x,y,z
 2   -x,1/2+y,1/2-z
 3   -x,-y,-z
 4   x,1/2-y,1/2+z
_cell_length_a                           12.2552(6)
_cell_length_b                           7.7537(7)
_cell_length_c                           7.6730(11)
_cell_angle_alpha                        90
_cell_angle_beta                         98.946(7)
_cell_angle_gamma                        90
_cell_volume                             720.24(13)
_cell_formula_units_Z                    4
_exptl_crystal_density_diffrn            6.8873(12)
loop_
 _atom_site_label
 _atom_site_type_symbol
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_adp_type
 _atom_site_U_iso_or_equiv
 _atom_site_symmetry_multiplicity
 _atom_site_occupancy
 _atom_site_calc_flag
 _atom_site_refinement_flags
 _atom_site_disorder_assembly
 _atom_site_disorder_group
  Yb1 Yb 0.5 0 0 Uani 0.00497(10) 2 1 d . . .
  Yb2 Yb 0.86516(10) 0.25210(7) -0.15883(9) Uani 0.0054(3) 4 1 d . . .
  Yb3 Yb 0.13452(10) 0.24880(6) 0.16099(10) Uani 0.0051(3) 4 1 d . . .
  Co1 Co 0.49977(13) 0.37393(14) 0.12680(13) Uani 0.0052(3) 4 1 d . . .
  Co2 Co 0.75025(7) -0.0001(3) 0.06111(14) Uani 0.0044(2) 4 1 d . . .
  Si1 Si 0.4996(3) -0.3346(3) 0.1661(3) Uani 0.0067(6) 4 1 d . . .
  Si3 Si 0.32006(18) -0.0053(8) 0.2315(3) Uani 0.0057(7) 4 1 d . . .
  Si5 Si 0.67888(18) -0.0062(9) 0.3191(3) Uani 0.0055(7) 4 1 d . . .
  Si6 Si 0.93963(16) 0.5008(11) 0.1105(7) Uani 0.0069(5) 4 1 d . . .
  Si4 Si 0.6783(5) 0.2741(7) 0.0507(6) Uani 0.0057(12) 4 1 d . . .
  Si7 Si 0.94099(15) -0.0003(11) 0.1093(7) Uani 0.0062(5) 4 1 d . . .
  Si2 Si 0.6791(5) -0.2742(7) 0.0406(6) Uani 0.0051(12) 4 1 d . . .