Co~10~Ge~3~O~16~
Barbier, J.; Acta Crystallographica Section C 51 (1995) 343–345; doi:10.1107/S0108270194010954

data_2003245
_publ_section_title
;
 Co~10~Ge~3~O~16~
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              343
_journal_page_last               345
_journal_paper_doi               10.1107/S0108270194010954
_journal_volume                  51
_journal_year                    1995
_chemical_compound_source
; Crystals of the title compound were prepared by melting a pre-reacted
 stoichiometric powder mixture in sealed Pt tube, which was then
cooled from 1723 to 1523 K at 15 K h^-1^.
;
_chemical_formula_sum            'Co10 Ge3 O16'
_chemical_formula_weight         1063.07
_space_group_IT_number           166
_symmetry_cell_setting           rhombohedral
_symmetry_space_group_name_Hall  '-R 3 2"'
_symmetry_space_group_name_H-M   'R -3 m :H'
_atom_type_scat_source           IntTabC
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   5.951(1)
_cell_length_b                   5.951(1)
_cell_length_c                   28.875(6)
_cell_measurement_reflns_used    26
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      14.90
_cell_measurement_theta_min      7.39
_cell_volume                     885.6(3)
_diffrn_measurement_device       'Siemens R3m/V'
_diffrn_measurement_method       \q/2\q
_diffrn_radiation_type           AgK\a
_diffrn_radiation_wavelength     0.5608
_diffrn_reflns_av_R_equivalents  0.047
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       58
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            2187
_diffrn_reflns_theta_max         35
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    11.04
_exptl_absorpt_correction_T_max  0.814
_exptl_absorpt_correction_T_min  0.417
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            'reddish brown'
_exptl_crystal_density_diffrn    5.98
_exptl_crystal_description       '(001) plate'
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.01
_exptl_crystal_thermal_history   'cooled from 1723 to 1523 K at 15 K h^-1^'
_refine_diff_density_max         2.1
_refine_diff_density_min         -1.6
_refine_ls_extinction_coef       '\c = 0.0056(3)'
_refine_ls_extinction_method     '[1+0.001\cF~c~^2^\l^3^/sin(2\q)]^-1/4^'
_refine_ls_goodness_of_fit_obs   0.820
_refine_ls_number_parameters     37
_refine_ls_number_reflns         1045
_refine_ls_R_factor_obs          0.058
_refine_ls_shift/esd_max         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(F~o~^2^)+(0.0283P)^2^] where P = ['
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.069
_reflns_number_observed          1045
_reflns_number_total             1045
_reflns_observed_criterion       'All reflections used'
_cod_data_source_file            br1086.cif
_cod_data_source_block           br1086_structure_1_of_1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_cell_measurement_temperature' value 'Room' was changed to '295(2)'
- the room/ambient temperature average [293;298] in Kelvins(K) was
taken.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_cell_measurement_temperature' value 'Room' was changed to '295(2)'
- the room/ambient temperature average [293;298] in Kelvins(K) was
taken.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'w =
1/[\s^2^(F~o~^2^)+(0.0283P)^2^] where P = [' was changed to 'calc'.
New tag '_refine_ls_weighting_details' was created. The value of the
new tag was set to 'w = 1/[\s^2^(F~o~^2^)+(0.0283P)^2^] where P = ['.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        885.59
_cod_original_sg_symbol_Hall     '-R 3 2" '
_cod_original_sg_symbol_H-M      'R -3 m '
_cod_database_code               2003245