C4-Ferrocenylsilyl-bridged and -substituted N-heterocyclic carbenes: complexation of germanium chloride.
Wang, Yuzhong; Hickox, Hunter P.; Wei, Pingrong; Robinson, Gregory H.; Dalton transactions (Cambridge, England : 2003) 46 (2017) 5508–5512; doi:10.1039/c7dt00066a

data_7042870
_publ_section_title
;
 C4-Ferrocenylsilyl-bridged and -substituted N-heterocyclic carbenes:
 complexation of germanium chloride.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5508
_journal_page_last               5512
_journal_paper_doi               10.1039/c7dt00066a
_journal_volume                  46
_journal_year                    2017
_chemical_formula_sum            'C68 H90 Fe N4 Si2'
_chemical_formula_weight         1075.46
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-01-02 deposited with the CCDC.
2017-02-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 99.308(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   28.165(15)
_cell_length_b                   10.265(5)
_cell_length_c                   22.785(12)
_cell_measurement_reflns_used    9577
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      21.69
_cell_measurement_theta_min      2.26
_cell_volume                     6501(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      297(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker D8 Quest PHOTON 100 CMOS'
_diffrn_measurement_method       'Phi\Omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1769
_diffrn_reflns_av_unetI/netI     0.0818
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            99660
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.994
_diffrn_reflns_theta_min         2.508
_diffrn_source                   Imus
_exptl_absorpt_coefficient_mu    0.309
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6168
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'BRUKER SADABS'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.099
_exptl_crystal_description       plate
_exptl_crystal_F_000             2320
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.349
_refine_diff_density_min         -0.389
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     464
_refine_ls_number_reflns         6375
_refine_ls_number_restraints     254
_refine_ls_restrained_S_all      1.157
_refine_ls_R_factor_all          0.1693
_refine_ls_R_factor_gt           0.0794
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0616P)^2^+8.7337P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1474
_refine_ls_wR_factor_ref         0.1786
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3388
_reflns_number_total             6375
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt00066a2.cif
_cod_data_source_block           j1_a
_cod_original_cell_volume        6500(6)
_cod_database_code               7042870
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.929
_shelx_estimated_absorpt_t_max   0.985
_shelx_res_checksum              60360