Compounds of Group 14 Elements with an Element–Element (E = Si, Ge, Sn) Bond: Effect of the Nature of the Element Atom
Zaitsev, Kirill V.; Lermontova, Elmira Kh.; Churakov, Andrei V.; Tafeenko, Viktor A.; Tarasevich, Boris N.; Poleshchuk, Oleg Kh.; Kharcheva, Anastasia V.; Magdesieva, Tatiana V.; Nikitin, Oleg M.; Zaitseva, Galina S.; Karlov, Sergey S.; Organometallics 34 (2015) 2765–; doi:10.1021/om501293t

data_1520115
_publ_section_title
;
 Compounds of Group 14 Elements with an Element--Element (E = Si, Ge, Sn)
 Bond: Effect of the Nature of the Element Atom
;
_journal_issue                   12
_journal_name_full               Organometallics
_journal_page_first              2765
_journal_paper_doi               10.1021/om501293t
_journal_volume                  34
_journal_year                    2015
_chemical_formula_moiety         'C42 H48 Ge3 Si2'
_chemical_formula_sum            'C42 H48 Ge3 Si2'
_chemical_formula_weight         826.75
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 92.4892(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.0225(3)
_cell_length_b                   21.7372(6)
_cell_length_c                   16.6855(5)
_cell_measurement_reflns_used    9976
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.489
_cell_measurement_theta_min      2.172
_cell_volume                     3994.0(2)
_computing_cell_refinement       'SAINT (Bruker, 2008)'
_computing_data_collection       '<i>APEX2</i> (Bruker, 2008)'
_computing_data_reduction        'SAINT (Bruker, 2008)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX II'
_diffrn_measurement_method       \w
_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  0.0376
_diffrn_reflns_av_sigmaI/netI    0.0319
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            38186
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.07
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.331
_exptl_absorpt_correction_T_max  0.5134
_exptl_absorpt_correction_T_min  0.4875
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.375
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cube
_exptl_crystal_F_000             1696
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.33
_refine_diff_density_max         0.464
_refine_diff_density_min         -0.301
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     424
_refine_ls_number_reflns         8712
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0371
_refine_ls_R_factor_gt           0.0272
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0321P)^2^+1.0830P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0618
_refine_ls_wR_factor_ref         0.0650
_reflns_number_gt                7303
_reflns_number_total             8712
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om501293t_si_003.cif
_cod_data_source_block           k
_cod_depositor_comments
'Adding full bibliography for 1520113--1520115.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1520115