C-H and H-H Activation at a Di-titanium Centre
Tsoureas, Nikolaos; Green, Jennifer; Cloke, Frederick Geoffrey; Chem. Commun.  (2017) –; doi:10.1039/C7CC07726B

data_7120819
_publ_section_title
;
 C-H and H-H Activation at a Di-titanium Centre
;
_journal_name_full               'Chem. Commun.'
_journal_paper_doi               10.1039/C7CC07726B
_journal_year                    2017
_chemical_formula_moiety         'C59 H106 N2 Si4 Ti2'
_chemical_formula_sum            'C59 H106 N2 Si4 Ti2'
_chemical_formula_weight         1051.61
_chemical_name_systematic        4_Cu
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2017-10-23 deposited with the CCDC.
2017-10-25 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.286(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.8365(8)
_cell_length_b                   13.6281(8)
_cell_length_c                   22.1659(12)
_cell_measurement_reflns_used    4395
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      70.5040
_cell_measurement_theta_min      3.8720
_cell_volume                     6172.6(6)
_computing_cell_refinement       'CrysAlisPro 1.171.38.44a (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.44a (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.44a (Rigaku OD, 2015)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXL-2013 (Sheldrick, 2013)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 16.1033
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0426
_diffrn_reflns_av_unetI/netI     0.0731
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            19255
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         68.244
_diffrn_reflns_theta_min         3.828
_diffrn_source                   'fine-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    3.201
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94338
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.44a (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'metallic intense green'
_exptl_crystal_density_diffrn    1.132
_exptl_crystal_density_meas      ?
_exptl_crystal_description       Plate
_exptl_crystal_F_000             2296
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: toluene/pentane'
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.857
_refine_diff_density_min         -0.771
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     610
_refine_ls_number_reflns         11249
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0880
_refine_ls_R_factor_gt           0.0590
_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^)+(0.0736P)^2^+2.7974P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1442
_refine_ls_wR_factor_ref         0.1644
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7962
_reflns_number_total             11249
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7cc07726b2.cif
_cod_data_source_block           4_Cu
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               7120819
_shelx_estimated_absorpt_t_min   0.567
_shelx_estimated_absorpt_t_max   0.784
_oxdiff_exptl_absorpt_empirical_full_min 0.881
_oxdiff_exptl_absorpt_empirical_full_max 1.194
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelxl_version_number           2013-3
_shelx_res_checksum              52991