[Si(SiMe(3))(3)](3)Ge(9)M(CO)(3)(-) (M = Cr, Mo, W): Coordination Chemistry with metalloid Clusters.
Henke, Florian; Schenk, Christian; Schnepf, Andreas; Dalton transactions (Cambridge, England : 2003) 40 (2011) 6704–6710; doi:10.1039/c1dt10096c

data_7016051
_publ_section_title
;
 [Si(SiMe(3))(3)](3)Ge(9)M(CO)(3)(-) (M = Cr, Mo, W): Coordination
 Chemistry with metalloid Clusters.
;
_journal_issue                   25
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6704
_journal_page_last               6710
_journal_paper_doi               10.1039/c1dt10096c
_journal_volume                  40
_journal_year                    2011
_chemical_formula_sum            'C44.5 H119 Cr Ge9 Li N4 O3 Si12'
_chemical_formula_weight         1807.77
_chemical_name_systematic
;
?
;
_space_group_IT_number           114
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P -4 2n'
_symmetry_space_group_name_H-M   'P -4 21 c'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   25.726(4)
_cell_length_b                   25.726(4)
_cell_length_c                   26.657(5)
_cell_measurement_reflns_used    6409
_cell_measurement_temperature    149(2)
_cell_measurement_theta_max      20.07
_cell_measurement_theta_min      1.10
_cell_volume                     17642(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      149(2)
_diffrn_measured_fraction_theta_full 0.960
_diffrn_measured_fraction_theta_max 0.960
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1674
_diffrn_reflns_av_sigmaI/netI    0.3511
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            25868
_diffrn_reflns_theta_full        22.78
_diffrn_reflns_theta_max         22.78
_diffrn_reflns_theta_min         1.10
_exptl_absorpt_coefficient_mu    3.332
_exptl_absorpt_correction_T_max  0.9027
_exptl_absorpt_correction_T_min  0.5825
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.361
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       diamond
_exptl_crystal_F_000             7368
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.410
_refine_diff_density_min         -0.340
_refine_diff_density_rms         0.079
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.03(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.759
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     409
_refine_ls_number_reflns         10149
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.759
_refine_ls_R_factor_all          0.2243
_refine_ls_R_factor_gt           0.0659
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0116P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0875
_refine_ls_wR_factor_ref         0.1274
_reflns_number_gt                3089
_reflns_number_total             10149
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10096c.txt
_cod_data_source_block           fh92tet
_cod_original_cell_volume        17643(5)
_cod_original_sg_symbol_H-M      P-42(1)c
_cod_original_formula_sum        'C44.50 H119 Cr Ge9 Li N4 O3 Si12'
_cod_database_code               7016051