Mono(dinitrogen) and Carbon Monoxide Adducts of Bis(cyclopentadienyl) Titanium Sandwiches
Tamara E. Hanna; Emil Lobkovsky; Paul J. Chirik; Journal of the American Chemical Society 128 (2006) 6018–6019; doi:10.1021/ja061213c

data_4110595
_publ_section_title
;
 Mono(dinitrogen) and Carbon Monoxide Adducts of Bis(cyclopentadienyl)
 Titanium Sandwiches
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6018
_journal_page_last               6019
_journal_paper_doi               10.1021/ja061213c
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C17.5 H23 O0.5 Si Ti0.5'
_chemical_formula_weight         293.40
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 111.0570(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.2729(8)
_cell_length_b                   12.0720(5)
_cell_length_c                   14.6636(6)
_cell_measurement_reflns_used    3838
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.46
_cell_measurement_theta_min      2.26
_cell_volume                     3183.8(2)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker X8 APEX II diffractometer'
_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  0.0353
_diffrn_reflns_av_sigmaI/netI    0.0382
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            18171
_diffrn_reflns_theta_full        30.52
_diffrn_reflns_theta_max         30.52
_diffrn_reflns_theta_min         2.03
_exptl_absorpt_coefficient_mu    0.370
_exptl_absorpt_correction_T_max  0.9908
_exptl_absorpt_correction_T_min  0.8662
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.224
_exptl_crystal_description       plate
_exptl_crystal_F_000             1256
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.336
_refine_diff_density_min         -0.328
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         4819
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0554
_refine_ls_R_factor_gt           0.0351
_refine_ls_shift/su_max          0.017
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0600P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0933
_refine_ls_wR_factor_ref         0.0999
_reflns_number_gt                3544
_reflns_number_total             4819
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja061213crom20060220_113527.cif
_cod_data_source_block           th24
_cod_original_formula_sum        'C17.50 H23 O0.50 Si Ti0.50'
_cod_database_code               4110595