Cooperative Ge‒N Bond Activation in Hydrogallation Products of Alkynyl(diethylamino)germanes (Et2N)nGe(C≡CtBu)4‒n
Uhl, Werner; Tannert, Jens; Layh, Marcus; Hepp, Alexander; Grimme, Stefan; Risthaus, Tobias; Organometallics 32 (2013) 6770–; doi:10.1021/om400543v

data_4081788
_publ_section_title
;
 Cooperative Ge--N Bond Activation in Hydrogallation Products of
 Alkynyl(diethylamino)germanes (Et2N)nGe(C\\tb CtBu)4--n
;
_journal_issue                   22
_journal_name_full               Organometallics
_journal_page_first              6770
_journal_paper_doi               10.1021/om400543v
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C45 H70 F2.5 Ga2 Ge'
_chemical_formula_weight         870.54
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 105.700(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.832(4)
_cell_length_b                   46.476(19)
_cell_length_c                   10.747(4)
_cell_measurement_reflns_used    9697
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      28.00
_cell_measurement_theta_min      2.19
_cell_volume                     4728(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Photon 100 CMOS-detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  'Venture Mo multilayer optic'
_diffrn_radiation_source         microsource
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0448
_diffrn_reflns_av_sigmaI/netI    0.0413
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       61
_diffrn_reflns_limit_k_min       -61
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            56959
_diffrn_reflns_theta_full        28.06
_diffrn_reflns_theta_max         28.06
_diffrn_reflns_theta_min         2.15
_exptl_absorpt_coefficient_mu    1.800
_exptl_absorpt_correction_T_max  0.9480
_exptl_absorpt_correction_T_min  0.6823
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.223
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1826
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.03
_refine_diff_density_max         2.620
_refine_diff_density_min         -0.857
_refine_diff_density_rms         0.076
_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     574
_refine_ls_number_reflns         11361
_refine_ls_number_restraints     177
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0690
_refine_ls_R_factor_gt           0.0460
_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^)+(0.0462P)^2^+5.1384P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1008
_refine_ls_wR_factor_ref         0.1099
_reflns_number_gt                8566
_reflns_number_total             11361
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400543v_si_002.cif
_cod_data_source_block           sad
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_original_formula_sum        'C45 H70 F2.50 Ga2 Ge'
_cod_database_code               4081788