Stabilizing Zr and Ti Cations by Interaction With a Ferrocenyl Fragment
Alberto Ramos; Edwin Otten; Douglas W. Stephan; Journal of the American Chemical Society 131 (2009) 15610–15611; doi:10.1021/ja9077446

data_4105278
_publ_section_title
;
 Stabilizing Zr and Ti Cations by Interaction With a Ferrocenyl Fragment
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15610
_journal_page_last               15611
_journal_paper_doi               10.1021/ja9077446
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C46 H44 B F15 Fe N P Ti'
_chemical_formula_weight         1041.35
_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                 106.2340(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.7656(3)
_cell_length_b                   28.7619(7)
_cell_length_c                   16.3906(4)
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.0
_cell_volume                     4420.2(2)
_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  0.0314
_diffrn_reflns_av_sigmaI/netI    0.0295
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            39900
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         1.42
_exptl_absorpt_coefficient_mu    0.644
_exptl_absorpt_correction_T_max  0.8556
_exptl_absorpt_correction_T_min  0.8060
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.565
_exptl_crystal_F_000             2120
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.350
_refine_diff_density_min         -0.300
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     609
_refine_ls_number_reflns         10112
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0476
_refine_ls_R_factor_gt           0.0371
_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^)+(0.0303P)^2^+3.5103P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0835
_refine_ls_wR_factor_ref         0.0875
_reflns_number_gt                8522
_reflns_number_total             10112
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9077446_si_002_4.cif
_cod_data_source_block           '[CpTi(NPtBu3)(C5H4)FeCp)][MeB(C6F5)3]'
_cod_database_code               4105278