1,1-Olefin-bridged bis-(2-indenyl) metallocenes of titanium and zirconium.
Morton, Jason G. M.; Al-Shammari, Haif; Sun, Yunshan; Zhu, Jiangtao; Stephan, Douglas W.; Dalton transactions (Cambridge, England : 2003) 43 (2014) 13219–13231; doi:10.1039/c4dt01583e

data_7031823
_publ_section_title
;
 1,1-Olefin-bridged bis-(2-indenyl) metallocenes of titanium and
 zirconium.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13219
_journal_page_last               13231
_journal_paper_doi               10.1039/c4dt01583e
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C42 H41 Cl2 Zr'
_chemical_formula_weight         707.87
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                   8.6369(5)
_cell_length_b                   11.7633(8)
_cell_length_c                   33.907(2)
_cell_measurement_temperature    150(2)
_cell_volume                     3444.9(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_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      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0434
_diffrn_reflns_av_sigmaI/netI    0.0196
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            49060
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    0.503
_exptl_absorpt_correction_T_max  0.9514
_exptl_absorpt_correction_T_min  0.9060
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1468
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.229
_refine_diff_density_min         -0.906
_refine_diff_density_rms         0.124
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.251
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         3196
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.251
_refine_ls_R_factor_all          0.1134
_refine_ls_R_factor_gt           0.1008
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0567P)^2^+35.1465P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2372
_refine_ls_wR_factor_ref         0.2457
_reflns_number_gt                2730
_reflns_number_total             3196
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01583e1.cif
_cod_data_source_block           t1_compound_14
_cod_depositor_comments
'Adding full bibliography for 7031816--7031825.cif.'
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               7031823