#------------------------------------------------------------------------------
#$Date: 2011-09-28 17:24:46 +0300 (Wed, 28 Sep 2011) $
#$Revision: 26848 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/10/20/2102082.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_2102082
loop_
_publ_author_name
'Gaudin, E.'
'Boucher, F.'
'Petricek, V.'
'Taulelle, F.'
'Evain, M.'
_publ_section_title
;
 Structures and phase transitions of the <i>A</i>~7~PSe~6~
 (<i>A</i>~=~Ag, Cu) argyrodite-type ionic conductors. II. \b- and
 \g-Cu~7~PSe~6~
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              402
_journal_page_last               408
_journal_volume                  56
_journal_year                    2000
_chemical_formula_sum            'Cu7 P Se6'
_chemical_formula_weight         949.56
_chemical_name_systematic        ' ?'
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  'P 2ac 2ab 3'
_symmetry_space_group_name_H-M   P213
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.1080(4)
_cell_length_b                   10.1080(4)
_cell_length_c                   10.1080(4)
_cell_measurement_reflns_used    34
_cell_measurement_temperature    293
_cell_volume                     1032.75(12)
_diffrn_ambient_temperature      293
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       \q
_diffrn_radiation_type           'Ag K\a'
_diffrn_radiation_wavelength     .56090
_diffrn_reflns_av_R_equivalents  .057
_diffrn_reflns_number            10070
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    18.628
_exptl_absorpt_correction_T_max  .1358
_exptl_absorpt_correction_T_min  .1123
_exptl_absorpt_correction_type   sphere
_exptl_crystal_colour            'metallic lustre'
_exptl_crystal_density_diffrn    6.105
_exptl_crystal_description       sphere
_exptl_crystal_F_000             1688
_exptl_crystal_size_rad          .086
_refine_diff_density_max         1.89
_refine_diff_density_min         -1.14
_refine_ls_extinction_coef       .1056(4)
_refine_ls_extinction_method     'Type I, Gaussian (Becker \& Coppens, 1974)'
_refine_ls_goodness_of_fit_all   .80
_refine_ls_goodness_of_fit_ref   .80
_refine_ls_number_parameters     70
_refine_ls_number_reflns         874
_refine_ls_R_factor_all          .0297
_refine_ls_R_factor_gt           .0297
_refine_ls_shift/su_max          <0.0001
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      'w =1/[\s^2^|F~o~| + (0.016|Fo|)^2^]'
_refine_ls_wR_factor_all         .0317
_refine_ls_wR_factor_ref         .0317
_reflns_number_gt                874
_reflns_number_total             1627
_reflns_threshold_expression     I>3.0\s(I)
_[local]_cod_data_source_file    lc0017.cif
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' tag value 'spherical' was replaced
with 'sphere' value.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               2102082
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
P .0103(4) .0103 .0103 -.0002(9) -.0002 -.0002
Se1a .0148(4) .0148 .0148 -.0026(4) -.0026 -.0026
Se1b .0132(5) .0145(5) .0124(5) -.0029(4) -.0018(3) -.0026(3)
Se2 .0210(4) .0210 .0210 .0022(4) .0022 .0022
Se3 .0221(4) .0221 .0221 .0041(4) .0041 .0041
Cu1 .0316(9) .0495(11) .0579(11) -.0029(8) .0025(8) .0003(10)
Cu2a .077(5) .080(5) .0213(9) .056(4) .010(2) .005(2)
Cu2b .036(4) .032(3) .028(3) .005(3) .004(3) -.003(2)
Cu3 .199(5) .199 .199 -.088(3) -.088 -.088
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
P .7485(2) .7485 .7485 .0103(2)
Se1a .87477(9) .87477 .87477 .0148(2)
Se1b .37079(11) .37645(11) .88083(10) .0134(3)
Se2 .23601(11) .23601 .23601 .0210(2)
Se3 .49079(12) .49079 .49079 .0221(2)
Cu1 .0720(3) -.0892(3) -.2696(3) .0463(6)
Cu2a .0024(9) .0034(9) .2795(2) .059(2)
Cu2b .0636(11) .0578(8) .2639(8) .032(2)
Cu3 .3608(5) .3608 .3608 .199(3)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_publ_flag
P Se1a 2.210(2) yes
P Se1b 2.199(2) yes
Cu3* Se2 2.2636(11) yes
Cu3* Se3 2.1971(12) yes
Cu2b* Cu2a .833(9) yes
Cu1* Cu2b* 2.416 yes
Cu1* Cu2a 2.855(8) yes
Cu1* Cu2a 2.865(8) yes
Cu2b* Cu2b* 2.928 yes
Cu2b* Cu2a 2.954(8) yes
Cu2a Se3 2.326(3) yes
Cu2a Se1b 2.382(7) yes
Cu2a Se1b 2.423(7) yes
Cu1* Se2 2.4849(11) yes
Cu1* Se1a 2.5056(9) yes
Cu1* Se1b 2.5246(10) yes
Cu1* Se3 2.5667(12) yes
Cu2b* Se1b 2.4357(11) yes
Cu2b* Se1b 2.5253(11) yes
Cu2b* Se2 2.5310(11) yes
Cu2b* Se3 2.6203(12) yes