C‒H Activation on an Oxo-Bridged Dititanium Complex: From Alkyl to μ-Alkylidene Functionalities
González-Pérez, Juan I.; Martín, Avelino; Mena, Miguel; Santamaría, Cristina; Organometallics 35 (2016) 2488–; doi:10.1021/acs.organomet.6b00381

data_4086667
_publ_section_title
;
 C--H Activation on an Oxo-Bridged Dititanium Complex: From Alkyl to
 \m-Alkylidene Functionalities
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              2488
_journal_paper_doi               10.1021/acs.organomet.6b00381
_journal_volume                  35
_journal_year                    2016
_chemical_formula_moiety         'C28 H50 O1 Si2 Ti2'
_chemical_formula_sum            'C28 H50 O Si2 Ti2'
_chemical_formula_weight         554.66
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4.3
_audit_creation_date             2014-12-16T09:32:19-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90.435(10)
_cell_angle_beta                 90.748(10)
_cell_angle_gamma                95.455(12)
_cell_formula_units_Z            2
_cell_length_a                   9.4728(10)
_cell_length_b                   9.5535(13)
_cell_length_c                   16.7390(14)
_cell_measurement_reflns_used    52
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      20
_cell_measurement_theta_min      3
_cell_measurement_wavelength     0.71073
_cell_volume                     1507.8(3)
_computing_cell_refinement
'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs 1990-2000)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 2006)'
_computing_publication_material  'WinGX publication routines (Farrugia, 2012)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT-2014 (Sheldrick, 2015)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_UB_11      0.01
_diffrn_orient_matrix_UB_12      0
_diffrn_orient_matrix_UB_13      0
_diffrn_orient_matrix_UB_21      0
_diffrn_orient_matrix_UB_22      0.01
_diffrn_orient_matrix_UB_23      0
_diffrn_orient_matrix_UB_31      0
_diffrn_orient_matrix_UB_32      0
_diffrn_orient_matrix_UB_33      0.01
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.082
_diffrn_reflns_av_unetI/netI     0.0677
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            29262
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_reduction_process
;
        Scaled and merged with Sortav
        R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
        R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397
;
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         27.499
_diffrn_reflns_theta_min         3.135
_diffrn_source                   'Enraf Nonius FR590'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.627
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.841
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.222
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             596
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.418
_refine_diff_density_min         -0.35
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.1
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     344
_refine_ls_number_reflns         6858
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.1
_refine_ls_R_factor_all          0.0939
_refine_ls_R_factor_gt           0.052
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0252P)^2^+2.0031P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0921
_refine_ls_wR_factor_ref         0.1066
_reflns_Friedel_coverage         0
_reflns_number_gt                4870
_reflns_number_total             6858
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om6b00381_si_001.cif
_cod_data_source_block           3
_cod_original_formula_sum        'C28 H50 O1 Si2 Ti2'
_cod_database_code               4086667
_shelx_res_checksum              30258
_shelx_hkl_checksum              15248