Reactions of the Heavier Group 14 Element Alkyne Analogues Ar'EEAr' (Ar' = C6H3-2,6(C6H3-2,6-Pri2)2; E = Ge, Sn) with Unsaturated Molecules: Probing the Character of the EE Multiple Bonds
Chunming Cui; Marilyn M. Olmstead; James C. Fettinger; Geoffrey H. Spikes; Philip P. Power; Journal of the American Chemical Society 127 (2005) 17530–17541; doi:10.1021/ja055372s

data_4112093
_publ_section_title
;
 Reactions of the Heavier Group 14 Element Alkyne Analogues Ar'EEAr' (Ar'
 = C6H3-2,6(C6H3-2,6-Pri2)2; E = Ge, Sn) with Unsaturated Molecules:
 Probing the Character of the EE Multiple Bonds
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              17530
_journal_page_last               17541
_journal_paper_doi               10.1021/ja055372s
_journal_volume                  127
_journal_year                    2005
_chemical_formula_sum            'C83.65 H98.45 Ge2 N2.65'
_chemical_formula_weight         1286.18
_chemical_name_common
Dipp*Ge(PhCNNCPh)GeDipp*.0.65PhCN.0.35MeCyclopentane.0.5Et2O
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                93.795(3)
_cell_angle_beta                 91.656(3)
_cell_angle_gamma                115.630(3)
_cell_formula_units_Z            2
_cell_length_a                   13.0890(17)
_cell_length_b                   14.2078(17)
_cell_length_c                   21.234(3)
_cell_measurement_reflns_used    936
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      20.0
_cell_measurement_theta_min      2.6
_cell_volume                     3545.2(8)
_computing_cell_refinement       'SMART 5.054 (Bruker, 2002)'
_computing_data_collection       'SMART 5.054 (Bruker, 2002)'
_computing_data_reduction        'SAINT 6.36A (Bruker, 2002)'
_computing_molecular_graphics    'SHELXTL 5.1, XP (Sheldrick, 1994)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0303
_diffrn_reflns_av_sigmaI/netI    0.0444
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            21151
_diffrn_reflns_theta_full        30.51
_diffrn_reflns_theta_max         30.51
_diffrn_reflns_theta_min         1.60
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.893
_exptl_absorpt_correction_T_max  0.9160
_exptl_absorpt_correction_T_min  0.7164
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.05 (Sheldrick, 2002)'
_exptl_crystal_colour            orange-yellow
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_description       plate
_exptl_crystal_F_000             1366
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.657
_refine_diff_density_min         -0.670
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     785
_refine_ls_number_reflns         21151
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0753
_refine_ls_R_factor_gt           0.0468
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0624P)^2^+3.3988P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1155
_refine_ls_wR_factor_ref         0.1317
_reflns_number_gt                15425
_reflns_number_total             21151
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja055372ssi20050805_074744.cif
_cod_data_source_block           mn1528
_cod_database_code               4112093