Cationic scandium aminobenzyl complexes. Synthesis, structure and unprecedented catalysis of copolymerization of 1-hexene and dicyclopentadiene.
Li, Xiaofang; Nishiura, Masayoshi; Mori, Kyouichi; Mashiko, Tomohiro; Hou, Zhaomin; Chemical communications (Cambridge, England)  (2007) 4137–4139; doi:10.1039/b708534f

data_7102198
_publ_section_title
;
 Cationic scandium aminobenzyl complexes. Synthesis, structure and
 unprecedented catalysis of copolymerization of 1-hexene and
 dicyclopentadiene.
;
_journal_issue                   40
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              4137
_journal_page_last               4139
_journal_paper_doi               10.1039/b708534f
_journal_year                    2007
_chemical_formula_sum            'C45 H33 B F20 N Sc Si'
_chemical_formula_weight         1051.58
_chemical_name_common            (Cp'ScBz)(B(C6F5)4)
_chemical_name_systematic
;
?
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.823(4)
_cell_length_b                   10.479(3)
_cell_length_c                   23.866(6)
_cell_measurement_temperature    173(2)
_cell_volume                     4457.2(19)
_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      173(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  0.0404
_diffrn_reflns_av_sigmaI/netI    0.0686
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            22032
_diffrn_reflns_theta_full        25.06
_diffrn_reflns_theta_max         25.06
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    0.311
_exptl_absorpt_correction_T_max  0.9125
_exptl_absorpt_correction_T_min  0.8476
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.567
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2120
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.340
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.02(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.979
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     631
_refine_ls_number_reflns         7718
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.979
_refine_ls_R_factor_all          0.0696
_refine_ls_R_factor_gt           0.0345
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0366
_refine_ls_wR_factor_ref         0.0402
_reflns_number_gt                5002
_reflns_number_total             7718
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b708534f.txt
_cod_data_source_block           2a
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_database_code               7102198