Carbene Stabilization of Highly Reactive Main-Group Molecules
Yuzhong Wang; Gregory H. Robinson; Inorganic Chemistry 50 (2011) 12326–12337; doi:10.1021/ic200675u

data_4327066
_publ_section_title
;
 Carbene Stabilization of Highly Reactive Main-Group Molecules
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              12326
_journal_page_last               12337
_journal_paper_doi               10.1021/ic200675u
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C34 H52 B2 N4'
_chemical_formula_weight         538.42
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 110.1430(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.1072(13)
_cell_length_b                   11.8124(10)
_cell_length_c                   20.1012(17)
_cell_measurement_reflns_used    9707
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.775
_cell_measurement_theta_min      2.244
_cell_volume                     3367.7(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'BRUKER SMART APEX II'
_diffrn_measurement_method       'OMEGA SCAN'
_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  0.0366
_diffrn_reflns_av_sigmaI/netI    0.0234
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            37073
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    0.061
_exptl_absorpt_correction_T_max  0.9927
_exptl_absorpt_correction_T_min  0.9855
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'BRUKER SADABS'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.062
_exptl_crystal_description       plate
_exptl_crystal_F_000             1176
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.174
_refine_diff_density_min         -0.160
_refine_diff_density_rms         0.029
_refine_ls_extinction_coef       0.0056(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.010
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     374
_refine_ls_number_reflns         6263
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.010
_refine_ls_R_factor_all          0.0699
_refine_ls_R_factor_gt           0.0465
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0803P)^2^+0.5369P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1298
_refine_ls_wR_factor_ref         0.1467
_reflns_number_gt                4490
_reflns_number_total             6263
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic200675u_si_002_3.cif
_cod_data_source_block           uga895_0m
_cod_database_code               4327066