Facile activation of alkynes with a boraguanidinato-stabilized germylene: a combined experimental and theoretical study
Böserle, Jiří; Zhigulin, Grigory; Štěpnička, Petr; Horký, Filip; Erben, Milan; Jambor, Roman; R°užička, Aleš; Ketkov, Sergey; Dostál, Libor; Dalton Transactions 46 (2017) 12339–12353; doi:10.1039/C7DT01950E

data_1546889
_publ_section_title
;
 Facile activation of alkynes with a boraguanidinato-stabilized germylene:
 a combined experimental and theoretical study
;
_journal_issue                   36
_journal_name_full               'Dalton Transactions'
_journal_page_first              12339
_journal_page_last               12353
_journal_paper_doi               10.1039/C7DT01950E
_journal_volume                  46
_journal_year                    2017
_chemical_formula_moiety         'C48 H70 B2 Ge2 N6'
_chemical_formula_sum            'C48 H70 B2 Ge2 N6'
_chemical_formula_weight         897.90
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-02-17 deposited with the CCDC.
2017-08-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 112.354(12)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.1640(12)
_cell_length_b                   21.9981(17)
_cell_length_c                   23.169(3)
_cell_measurement_reflns_used    34786
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1
_cell_volume                     4791.0(10)
_computing_cell_refinement       'COLLECT and DENZO'
_computing_data_collection
'COLLECT (Hooft, 1998) and DENZO (Otwinowski & Minor, 1997)'
_computing_data_reduction        'COLLECT and DENZO'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Bruker Nonius KappaCCD area detector'
_diffrn_measurement_method       '\f and \w scans to fill the Ewald sphere'
_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  0.0389
_diffrn_reflns_av_unetI/netI     0.0366
_diffrn_reflns_Laue_measured_fraction_full 0.981
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            34717
_diffrn_reflns_point_group_measured_fraction_full 0.981
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.200
_diffrn_reflns_theta_min         1.851
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.293
_exptl_absorpt_correction_T_max  0.837
_exptl_absorpt_correction_T_min  0.599
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
Gaussian integration (Coppens, 1970)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.245
_exptl_crystal_description       block
_exptl_crystal_F_000             1896
_exptl_crystal_size_max          0.59
_exptl_crystal_size_mid          0.47
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.805
_refine_diff_density_min         -0.654
_refine_diff_density_rms         0.093
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.177
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     592
_refine_ls_number_reflns         10461
_refine_ls_number_restraints     694
_refine_ls_restrained_S_all      3.191
_refine_ls_R_factor_all          0.0700
_refine_ls_R_factor_gt           0.0418
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0178P)^2^+10.1385P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0835
_refine_ls_wR_factor_ref         0.1014
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8045
_reflns_number_total             10461
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt01950e5.cif
_cod_data_source_block           1a
_cod_database_code               1546889