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_4075214
_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            'C18.5 H36 B9 N3 Ti'
_chemical_formula_weight         445.69
_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                106.781(3)
_cell_angle_beta                 91.443(3)
_cell_angle_gamma                103.302(3)
_cell_formula_units_Z            2
_cell_length_a                   10.2187(15)
_cell_length_b                   10.6785(16)
_cell_length_c                   12.6567(19)
_cell_measurement_temperature    293(2)
_cell_volume                     1280.6(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0794
_diffrn_reflns_av_sigmaI/netI    0.0718
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            5188
_diffrn_reflns_theta_full        24.00
_diffrn_reflns_theta_max         24.00
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    0.346
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6689
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.156
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             470
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.45
_refine_diff_density_max         1.440
_refine_diff_density_min         -1.369
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.436
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     296
_refine_ls_number_reflns         3329
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.509
_refine_ls_R_factor_all          0.1342
_refine_ls_R_factor_gt           0.1166
_refine_ls_shift/su_max          1.007
_refine_ls_shift/su_mean         0.016
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1792P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3277
_refine_ls_wR_factor_ref         0.3441
_reflns_number_gt                2520
_reflns_number_total             3329
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060125ysi20060208_021615.cif
_cod_data_source_block           5b
_cod_original_sg_symbol_H-M      P(-1)
_cod_original_formula_sum        'C18.50 H36 B9 N3 Ti'
_cod_database_code               4075214