Dimerization of a marginally stable disilenyl germylene to tricyclic systems: evidence for reversible NHC-coordination.
Nieder, David; Yildiz, Cem B.; Jana, Anukul; Zimmer, Michael; Huch, Volker; Scheschkewitz, David; Chemical communications (Cambridge, England) 52 (2016) 2799–2802; doi:10.1039/c5cc09878e

data_7118427
_publ_section_title
;
 Dimerization of a marginally stable disilenyl germylene to tricyclic
 systems: evidence for reversible NHC-coordination.
;
_journal_issue                   13
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2799
_journal_page_last               2802
_journal_paper_doi               10.1039/c5cc09878e
_journal_volume                  52
_journal_year                    2016
_chemical_formula_moiety         'C92 H144 Ge2 Si4, 0.5(C7 H8)'
_chemical_formula_sum            'C95.5 H152 Ge2 Si4'
_chemical_formula_weight         1557.70
_chemical_properties_physical    'Air-sensitive, Moisture-sensitive'
_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-2014/6
_audit_update_record
;
2015-11-27 deposited with the CCDC.
2016-01-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
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_cell_length_c                   20.2919(8)
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_cell_measurement_temperature    133(2)
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_cell_volume                     17844.3(14)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
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_computing_publication_material  'Bruker SHELXTL'
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_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      133(2)
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_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.0917
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_diffrn_reflns_laue_measured_fraction_full 0.999
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_diffrn_reflns_number            136792
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_exptl_absorpt_coefficient_mu    0.771
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_exptl_crystal_colour            colourless
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_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Toluene'
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0437P)^2^+30.1432P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0950
_refine_ls_wR_factor_ref         0.1105
_reflns_Friedel_coverage         0.000
_reflns_number_gt                12500
_reflns_number_total             18398
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5cc09878e2.cif
_cod_data_source_block           sh3557
_cod_depositor_comments
'Adding full bibliography for 7118426--7118427.cif.'
_cod_original_formula_sum        'C95.50 H152 Ge2 Si4'
_cod_database_code               7118427
_shelx_estimated_absorpt_t_min   0.754
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