Synthesis, Structure, and Olefin Polymerization Behavior of Constrained-Geometry Group 4 Metallacarboranes Incorporating Imido-Dicarbollyl Ligands
Gao, Mingli; Tang, Yong; Xie, Meihua; Qian, Changtao; Xie, Zuowei; Organometallics 25 (2006) 2578–; doi:10.1021/om060125y

data_4075217
_publ_section_title
;
 Synthesis, Structure, and Olefin Polymerization Behavior of
 Constrained-Geometry Group 4 Metallacarboranes Incorporating
 Imido-Dicarbollyl Ligands
;
_journal_issue                   10
_journal_name_full               Organometallics
_journal_page_first              2578
_journal_paper_doi               10.1021/om060125y
_journal_volume                  25
_journal_year                    2006
_chemical_formula_sum            'C14.5 H39 B9 N4 Ti'
_chemical_formula_weight         414.69
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 125.603(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   29.625(3)
_cell_length_b                   10.6706(9)
_cell_length_c                   18.4259(17)
_cell_measurement_temperature    293(2)
_cell_volume                     4735.9(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0537
_diffrn_reflns_av_sigmaI/netI    0.0621
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            10821
_diffrn_reflns_theta_full        24.00
_diffrn_reflns_theta_max         24.00
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6853
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    0.291
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             442
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.137
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3716
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0943
_refine_ls_R_factor_gt           0.0694
_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^)+(0.1314P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2005
_refine_ls_wR_factor_ref         0.2162
_reflns_number_gt                2519
_reflns_number_total             3716
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060125ysi20060208_021615.cif
_cod_data_source_block           8
_cod_original_cell_volume        4735.8(7)
_cod_original_sg_symbol_H-M      C2/c
_cod_original_formula_sum        'C14.50 H39 B9 N4 Ti'
_cod_database_code               4075217