Tantallacarborane Mediated Consecutive C‒C and C‒N Coupling Reactions of Alkyl Isonitriles: A Facile Route to N-Heterocycles
Xiang, Li; Xie, Zuowei; Organometallics 35 (2016) 233–; doi:10.1021/acs.organomet.5b00953

data_4088239
_publ_section_title
;
 Tantallacarborane Mediated Consecutive C--C and C--N Coupling Reactions
 of Alkyl Isonitriles: A Facile Route to N-Heterocycles
;
_journal_issue                   2
_journal_name_full               Organometallics
_journal_page_first              233
_journal_paper_doi               10.1021/acs.organomet.5b00953
_journal_volume                  35
_journal_year                    2016
_chemical_formula_sum            'C41 H77 B9 N5 Ta'
_chemical_formula_weight         918.31
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                98.7360(10)
_cell_angle_beta                 108.3840(10)
_cell_angle_gamma                108.6380(10)
_cell_formula_units_Z            2
_cell_length_a                   10.8167(4)
_cell_length_b                   15.3176(6)
_cell_length_c                   16.2594(6)
_cell_measurement_reflns_used    350
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      15
_cell_volume                     2324.79(15)
_computing_cell_refinement       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_collection       'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_data_reduction        'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_computing_molecular_graphics    'BRUKER SHELXTL'
_computing_publication_material  'BRUKER SHELXTL'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'BRUKER KAPPA APEXII DUO DIFFRACTOMETER'
_diffrn_measurement_method       'PHI & OMEGA SCAN'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0979
_diffrn_reflns_av_unetI/netI     0.0958
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       12
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_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            29564
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.249
_diffrn_reflns_theta_min         1.375
_exptl_absorpt_coefficient_mu    2.398
_exptl_absorpt_correction_T_max  0.6622
_exptl_absorpt_correction_T_min  0.5605
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.312
_exptl_crystal_description       block
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.400
_exptl_crystal_size_min          0.300
_refine_diff_density_max         1.210
_refine_diff_density_min         -0.938
_refine_diff_density_rms         0.206
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     505
_refine_ls_number_reflns         8422
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0665
_refine_ls_R_factor_gt           0.0624
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1057P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1530
_refine_ls_wR_factor_ref         0.1581
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7667
_reflns_number_total             8422
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00953_si_002.cif
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_cod_database_code               4088239
_shelx_estimated_absorpt_t_min   0.447
_shelx_estimated_absorpt_t_max   0.533
_shelxl_version_number           2014/6
_shelx_res_checksum              83278
_shelx_hkl_checksum              57078