Synthesis of [CNN] pincer nickel(ii) NHC chlorides and their catalytic effects on the hydrosilylation of aldehydes and ketones under mild conditions
Cao, Shaobo; Xie, Shangqing; Li, Qingshuang; Li, Xiaoyan; Sun, Hongjian; Fuhr, Olaf; Fenske, Dieter; New Journal of Chemistry 47 (2023) 12229–12238; doi:10.1039/D3NJ01375H

data_7062499
_publ_section_title
;
 Synthesis of [CNN] pincer nickel(ii) NHC chlorides and their catalytic
 effects on the hydrosilylation of aldehydes and ketones under mild
 conditions
;
_journal_issue                   26
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              12229
_journal_page_last               12238
_journal_paper_doi               10.1039/D3NJ01375H
_journal_volume                  47
_journal_year                    2023
_chemical_formula_moiety         'C22 H21 Cl N4 Ni'
_chemical_formula_sum            'C22 H21 Cl N4 Ni'
_chemical_formula_weight         435.59
_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_Hall           'P 2c -2ac'
_space_group_name_H-M_alt        'P c a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2018-08-06
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2023-05-22 deposited with the CCDC.	2023-05-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   22.2059(5)
_cell_length_b                   10.1482(2)
_cell_length_c                   8.5616(2)
_cell_measurement_reflns_used    29360
_cell_measurement_temperature    150.15
_cell_measurement_theta_max      61.67
_cell_measurement_theta_min      1.73
_cell_volume                     1929.36(7)
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      150.15
_diffrn_detector                 'Eiger R 1M'
_diffrn_detector_area_resol_mean 13.33
_diffrn_detector_type            DECTRIS
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device       'Eulerian 4-circle diffractometer'
_diffrn_measurement_device_type  'STOE STADIVARI'
_diffrn_measurement_method       'rotation method, \w scans'
_diffrn_radiation_collimation    '1.2 0.6 mm diameter'
_diffrn_radiation_monochromator  'Graded multilayer mirror'
_diffrn_radiation_polarisn_norm  0
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34143
_diffrn_reflns_av_R_equivalents  0.0128
_diffrn_reflns_av_unetI/netI     0.0107
_diffrn_reflns_Laue_measured_fraction_full 0.988
_diffrn_reflns_Laue_measured_fraction_max 0.979
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            10895
_diffrn_reflns_point_group_measured_fraction_full 0.969
_diffrn_reflns_point_group_measured_fraction_max 0.947
_diffrn_reflns_theta_full        53.597
_diffrn_reflns_theta_max         59.966
_diffrn_reflns_theta_min         3.463
_diffrn_source                   'Metaljet D2'
_diffrn_source_current           2.860
_diffrn_source_power             0.200
_diffrn_source_target            Ga
_diffrn_source_type              'Metaljet D2'
_diffrn_source_voltage           70
_exptl_absorpt_coefficient_mu    6.518
_exptl_absorpt_correction_T_max  0.1538
_exptl_absorpt_correction_T_min  0.1061
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.500
_exptl_crystal_description       block
_exptl_crystal_F_000             904
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.582
_refine_diff_density_min         -0.315
_refine_diff_density_rms         0.053
_refine_ls_abs_structure_details
;
 Classical Flack method preferred over Parsons because s.u. lower.
;
_refine_ls_abs_structure_Flack   -0.001(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         4120
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0271
_refine_ls_R_factor_gt           0.0263
_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^)+(0.0474P)^2^+0.6352P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0713
_refine_ls_wR_factor_ref         0.0718
_reflns_Friedel_coverage         0.809
_reflns_Friedel_fraction_full    0.948
_reflns_Friedel_fraction_max     0.911
_reflns_number_gt                4007
_reflns_number_total             4120
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3nj01375h2.cif
_cod_data_source_block           sun14neu
_cod_depositor_comments
'Adding full bibliography for 7062499--7062501.cif.'
_cod_database_code               7062499
_shelx_shelxl_version_number     2018/3
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C19(H19A,H19B), C20(H20A,H20B), C21(H21A,H21B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C5(H5), C6(H6), C7(H7), C12(H12), C13(H13), C14(H14),
 C15(H15), C17(H17), C18(H18)
2.c Idealised Me refined as rotating group:
 C22(H22A,H22B,H22C)
;
_shelx_res_checksum              31726
_olex2_submission_special_instructions 'No special instructions were received'