The Reductive Activation of CO2 Across a Ti=Ti Double Bond: Synthetic, Structural, and Mechanistic Studies.
Kilpatrick, Alexander F. R.; Green, Jennifer C.; Cloke, F Geoffrey N; Organometallics 34 (2015) 4816–4829; doi:10.1021/acs.organomet.5b00315

data_4086021
_publ_section_title
;
 The Reductive Activation of CO2 Across a Ti=Ti Double Bond: Synthetic,
 Structural, and Mechanistic Studies.
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              4816
_journal_page_last               4829
_journal_paper_doi               10.1021/acs.organomet.5b00315
_journal_volume                  34
_journal_year                    2015
_chemical_formula_moiety         'C52 H92 S Si4 Ti2'
_chemical_formula_sum            'C52 H92 S Si4 Ti2'
_chemical_formula_weight         957.47
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2015-01-26
_audit_creation_method
;
Olex2 1.2
(compiled 2014.09.19 svn.r3010 for OlexSys, GUI svn.r4874)
;
_cell_angle_alpha                99.66(3)
_cell_angle_beta                 91.04(3)
_cell_angle_gamma                115.71(3)
_cell_formula_units_Z            2
_cell_length_a                   11.283(2)
_cell_length_b                   12.867(3)
_cell_length_c                   21.651(4)
_cell_measurement_reflns_used    32826
_cell_measurement_temperature    100
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.3
_cell_volume                     2777.2(13)
_computing_cell_refinement
;
CrystalClear-SM Expert 3.1 b27 (Rigaku, 20112)
;
_computing_data_collection
;
CrystalClear-SM Expert 3.1 b27 (Rigaku, 20112)
;
_computing_data_reduction
;
CrystalClear-SM Expert 3.1 b27 (Rigaku, 20112)
;
_computing_molecular_graphics    'Ortep-3 (Farrugia, 1997)'
_computing_publication_material
;
OLEX2 (Dolomanov et al, 2009)
;
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.15
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'AFC12 (Right): Kappa 3 circle'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0581
_diffrn_reflns_av_unetI/netI     0.0517
_diffrn_reflns_laue_measured_fraction_full 0.994
_diffrn_reflns_laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            35931
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.542
_diffrn_reflns_theta_min         2.921
_diffrn_source                   'Sealed Tube'
_exptl_absorpt_coefficient_mu    0.443
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.436
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Multi-Scan (Blessing, 1995)
;
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.145
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1040
_exptl_crystal_recrystallization_method 'From pentane solution at -35 C'
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.161
_refine_diff_density_min         -0.453
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     532
_refine_ls_number_reflns         12669
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0588
_refine_ls_R_factor_gt           0.0456
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+0.3737P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1214
_refine_ls_wR_factor_ref         0.1276
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10150
_reflns_number_total             12669
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00315_si_003.cif
_cod_data_source_block           Compound11
_cod_depositor_comments
;Adding full bibliography for 4086017--4086022.cif.

 Adding full bibliography for 4086017--4086022.cif.
;
_cod_original_cell_volume        2777.2(12)
_cod_database_code               4086021
_shelx_estimated_absorpt_t_max   0.983
_shelx_estimated_absorpt_t_min   0.937
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C9(H9), C12(H12), C15(H15), C18(H18), C21(H21), C24(H24), C35(H35), C38(H38),
 C41(H41), C45(H45), C48(H48), C51(H51)
2.b Me refined with riding coordinates:
 C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C13(H13A,H13B,H13C), C14(H14A,H14B,
 H14C), C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C19(H19A,H19B,H19C), C20(H20A,
 H20B,H20C), C22(H22A,H22B,H22C), C23(H23A,H23B,H23C), C25(H25A,H25B,H25C),
 C26(H26A,H26B,H26C), C36(H36A,H36B,H36C), C37(H37A,H37B,H37C), C39(H39A,H39B,
 H39C), C40(H40A,H40B,H40C), C42(H42A,H42B,H42C), C43(H43A,H43B,H43C), C46(H46A,
 H46B,H46C), C47(H47A,H47B,H47C), C49(H49A,H49B,H49C), C50(H50A,H50B,H50C),
 C52(H52A,H52B,H52C), C53(H53A,H53B,H53C)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C6(H6), C7(H7), C28(H28), C29(H29), C32(H32), C33(H33)
;
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'