Reduction-Induced Exclusive Activation of theansa-1,2-Bis(dimethylsilylene)ethane Chain inansa-Permethyltitanocene Compounds§
Pinkas, Jiří; Lukešová, Lenka; Gyepes, Róbert; Císařová, Ivana; Kubišta, Jiří; Horáček, Michal; Mach, Karel; Organometallics 29 (2010) 5199–; doi:10.1021/om1003623

data_4066235
_publ_section_title
;
 Reduction-Induced Exclusive Activation of
 theansa-1,2-Bis(dimethylsilylene)ethane Chain inansa-Permethyltitanocene
 Compounds&#x00A7;
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              5199
_journal_paper_doi               10.1021/om1003623
_journal_volume                  29
_journal_year                    2010
_chemical_formula_moiety         'C26 H46 Si2 Ti'
_chemical_formula_sum            'C26 H46 Si2 Ti'
_chemical_formula_weight         462.71
_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                 114.4415(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.8715(4)
_cell_length_b                   34.7068(14)
_cell_length_c                   8.4030(3)
_cell_measurement_reflns_used    5384
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2620.94(18)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\w scans to fill the Ewald sphere'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0938
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       44
_diffrn_reflns_limit_k_min       -44
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            19068
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.17
_exptl_absorpt_coefficient_mu    0.429
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.173
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.650
_refine_diff_density_min         -0.423
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     276
_refine_ls_number_reflns         5923
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.1294
_refine_ls_R_factor_gt           0.0602
_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^)+(0.0623P)^2^+2.2208P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1268
_refine_ls_wR_factor_ref         0.1562
_reflns_number_gt                3489
_reflns_number_total             5923
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om1003623_si_001.cif
_cod_data_source_block           ansc2time2c
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4066235