Novel Stable Silyl, Germyl, and Stannyl Germanium(II) Compounds Containing an Amidinato Ligand
Matioszek, Dimitri; Katir, Nadia; Ladeira, Sonia; Castel, Annie; Organometallics 30 (2011) 2230–; doi:10.1021/om200024d

data_4064292
_publ_section_title
;
 Novel Stable Silyl, Germyl, and Stannyl Germanium(II) Compounds
 Containing an Amidinato Ligand
;
_journal_issue                   8
_journal_name_full               Organometallics
_journal_page_first              2230
_journal_paper_doi               10.1021/om200024d
_journal_volume                  30
_journal_year                    2011
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C26 H70 Mg O2 Si6 Sn2'
_chemical_formula_sum            'C26 H70 Mg O2 Si6 Sn2'
_chemical_formula_weight         845.09
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 119.091(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   27.4165(15)
_cell_length_b                   9.8904(5)
_cell_length_c                   19.4619(10)
_cell_measurement_reflns_used    5574
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      25.17
_cell_measurement_theta_min      2.33
_cell_measurement_wavelength     0.71073
_cell_volume                     4611.6(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker Kappa APEX II Quazar'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'multilayer optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'microfocus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0317
_diffrn_reflns_av_unetI/netI     0.0294
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            16354
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         3.04
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.271
_exptl_absorpt_correction_T_max  0.952
_exptl_absorpt_correction_T_min  0.780
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker-AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1752
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.617
_refine_diff_density_min         -0.918
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.04
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         4193
_refine_ls_number_restraints     232
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.062
_refine_ls_R_factor_gt           0.0501
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0550P)^2^+28.2731P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1224
_refine_ls_wR_factor_ref         0.1304
_reflns_number_gt                3448
_reflns_number_total             4193
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200024d_si_002.cif
_cod_data_source_block           2c
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4064292