Spirocyclic germanes via transannular insertion reactions of vinyl germylenes into Si-Si bonds.
Walewska, Małgorzata; Baumgartner, Judith; Marschner, Christoph; Albers, Lena; Müller, Thomas; Dalton transactions (Cambridge, England : 2003) 47 (2018) 5985–5996; doi:10.1039/c8dt00315g

data_7045916
_publ_section_title
;
 Spirocyclic germanes via transannular insertion reactions of vinyl
 germylenes into Si-Si bonds.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5985
_journal_page_last               5996
_journal_paper_doi               10.1039/c8dt00315g
_journal_volume                  47
_journal_year                    2018
_chemical_formula_sum            'C32 H60 Ge Si8'
_chemical_formula_weight         742.11
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_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
_audit_update_record
;
2016-01-27 deposited with the CCDC.
2018-03-23 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 98.49(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.7118(19)
_cell_length_b                   27.874(6)
_cell_length_c                   16.028(3)
_cell_measurement_reflns_used    12204
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      52.507
_cell_measurement_theta_min      4.597
_cell_volume                     4291.3(15)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'SMART APEX'
_diffrn_measurement_method       '\w scans'
_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  0.0543
_diffrn_reflns_av_sigmaI/netI    0.0515
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            34044
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.46
_exptl_absorpt_coefficient_mu    0.957
_exptl_absorpt_correction_T_max  0.9104
_exptl_absorpt_correction_T_min  0.7623
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.149
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             1584
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_platon_squeeze_details
;
;
_refine_diff_density_max         0.798
_refine_diff_density_min         -0.766
_refine_diff_density_rms         0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.394
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     386
_refine_ls_number_reflns         8740
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.394
_refine_ls_R_factor_all          0.0933
_refine_ls_R_factor_gt           0.0871
_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^)+(0.0275P)^2^+15.7250P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1525
_refine_ls_wR_factor_ref         0.1548
_reflns_number_gt                8275
_reflns_number_total             8740
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8dt00315g4.cif
_cod_data_source_block           1026j
_cod_depositor_comments
'Adding full bibliography for 7045912--7045917.cif.'
_cod_original_cell_volume        4291.5(15)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7045916