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_7031820
_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            'C38 H28 Cl2 Zr'
_chemical_formula_weight         646.72
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 92.85
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.519
_cell_length_b                   23.219
_cell_length_c                   11.225
_cell_measurement_temperature    150(2)
_cell_volume                     2998.521
_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 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0465
_diffrn_reflns_av_sigmaI/netI    0.0573
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            28620
_diffrn_reflns_theta_full        29.30
_diffrn_reflns_theta_max         29.30
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.571
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.432
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1320
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.449
_refine_diff_density_min         -0.446
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         8173
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0724
_refine_ls_R_factor_gt           0.0402
_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^)+(0.0434P)^2^+0.3315P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0897
_refine_ls_wR_factor_ref         0.1019
_reflns_number_gt                5539
_reflns_number_total             8173
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01583e1.cif
_cod_data_source_block           jgmm012_compound_10b
_cod_depositor_comments
'Adding full bibliography for 7031816--7031825.cif.'
_cod_original_cell_volume        2998.8
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7031820