Catalytic Dinitrogen Silylation by Tris(pyrazolyl)borate-Supported Titanium Complexes
Liu, Chenrui; Peng, Lingya; Chen, Yumeng; An, Jingyi; Li, Zhaoxin; Huang, Wenshuang; Cui, Ganglong; Hu, Shaowei; Chemical Communications  (2025) –; doi:10.1039/D5CC04879F

data_7135267
_publ_section_title
;
 Catalytic Dinitrogen Silylation by Tris(pyrazolyl)borate-Supported
 Titanium Complexes
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D5CC04879F
_journal_year                    2025
_chemical_formula_sum            'C114 H75 N3 O6'
_chemical_formula_weight         1582.77
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_block_doi                 10.5517/ccdc.csd.cc2ddsh3
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2022-11-01 deposited with the CCDC.	2025-11-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 100.448(3)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   21.5241(6)
_cell_length_b                   26.6610(4)
_cell_length_c                   42.4881(14)
_cell_measurement_reflns_used    18890
_cell_measurement_temperature    180.00(11)
_cell_measurement_theta_max      22.5500
_cell_measurement_theta_min      2.4150
_cell_volume                     23977.7(11)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      180.00(11)
_diffrn_detector                 'CCD plate'
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy R, DW system, HyPix'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0677
_diffrn_reflns_av_unetI/netI     0.0600
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       50
_diffrn_reflns_limit_l_min       -50
_diffrn_reflns_number            122106
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.026
_diffrn_reflns_theta_max         25.026
_diffrn_reflns_theta_min         2.309
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.054
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.51397
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.29a (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    0.877
_exptl_crystal_description       plate-like
_exptl_crystal_F_000             6624
_exptl_crystal_preparation       Luminescent
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.635
_refine_diff_density_min         -0.195
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1111
_refine_ls_number_reflns         21183
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.1393
_refine_ls_R_factor_gt           0.0790
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0778P)^2^+29.1046P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1946
_refine_ls_wR_factor_ref         0.2220
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10629
_reflns_number_total             21183
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc04879f2.cif
_cod_data_source_block           1_sq
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7135267
_shelx_shelxl_version_number     2014/7
_oxdiff_exptl_absorpt_empirical_full_min 0.520
_oxdiff_exptl_absorpt_empirical_full_max 1.475
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              75391
_shelx_hkl_checksum              90620
_shelx_fab_checksum              30046