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_4064291
_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 Ge2 Mg O2 Si6, C5 H12'
_chemical_formula_sum            'C31 H82 Ge2 Mg O2 Si6'
_chemical_formula_weight         825.04
_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                 115.691(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.7428(3)
_cell_length_b                   15.5144(3)
_cell_length_c                   18.7568(3)
_cell_measurement_reflns_used    9893
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      28.2
_cell_measurement_theta_min      2.41
_cell_measurement_wavelength     0.71073
_cell_volume                     4914.99(15)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0308
_diffrn_reflns_av_unetI/netI     0.0257
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            40766
_diffrn_reflns_theta_full        30.5
_diffrn_reflns_theta_max         30.5
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    1.404
_exptl_absorpt_correction_T_max  0.735
_exptl_absorpt_correction_T_min  0.520
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker-AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.115
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1776
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.872
_refine_diff_density_min         -0.461
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         7451
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.053
_refine_ls_R_factor_gt           0.0331
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0496P)^2^+3.1462P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0846
_refine_ls_wR_factor_ref         0.0971
_reflns_number_gt                5680
_reflns_number_total             7451
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200024d_si_002.cif
_cod_data_source_block           2b
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4064291