N-Heterocyclic silylene complexes of nickel(0).
Glok, Eduard; Werner, Luis; Radius, Udo; Dalton transactions (Cambridge, England : 2003) 54 (2025) 14846–14861; doi:10.1039/d5dt01887k

data_1575761
_publ_section_title
;
 N-Heterocyclic silylene complexes of nickel(0).
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14846
_journal_page_last               14861
_journal_paper_doi               10.1039/d5dt01887k
_journal_volume                  54
_journal_year                    2025
_chemical_formula_moiety         'C48 H60 N4 Ni Si2'
_chemical_formula_sum            'C48 H60 N4 Ni Si2'
_chemical_formula_weight         807.89
_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
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2025-08-07 deposited with the CCDC.	2025-09-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.0930(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.1548(2)
_cell_length_b                   14.9696(2)
_cell_length_c                   16.7695(2)
_cell_measurement_reflns_used    12131
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      74.5540
_cell_measurement_theta_min      2.5980
_cell_volume                     4303.54(9)
_computing_cell_refinement       'CrysAlisPro 1.171.41.96a (Rigaku OD, 2021)'
_computing_data_collection       'BIS 2011.8 / APEX2 ver. 2014.9 (Bruker AXS)'
_computing_data_reduction        'CrysAlisPro 1.171.41.96a (Rigaku OD, 2021)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.00(10)
_diffrn_detector_area_resol_mean 10.0
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'PhotonJet R (Cu) X-ray Source'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0346
_diffrn_reflns_av_unetI/netI     0.0290
_diffrn_reflns_Laue_measured_fraction_full 0.973
_diffrn_reflns_Laue_measured_fraction_max 0.945
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            15730
_diffrn_reflns_point_group_measured_fraction_full 0.973
_diffrn_reflns_point_group_measured_fraction_max 0.945
_diffrn_reflns_theta_full        72.000
_diffrn_reflns_theta_max         74.948
_diffrn_reflns_theta_min         3.920
_diffrn_source                   'Rotating-anode X-ray tube'
_exptl_absorpt_coefficient_mu    1.464
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.58912
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.96a (Rigaku Oxford Diffraction, 2021) Numerical 
absorption correction based on gaussian integration over a multifaceted 
crystal model Empirical absorption correction using spherical harmonics, 
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear yellow'
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_description       block
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.210
_exptl_crystal_size_min          0.130
_refine_diff_density_max         0.467
_refine_diff_density_min         -0.492
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.124
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         4186
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.124
_refine_ls_R_factor_all          0.0422
_refine_ls_R_factor_gt           0.0395
_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^)+(0.0565P)^2^+4.7842P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1120
_refine_ls_wR_factor_ref         0.1141
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3813
_reflns_number_total             4186
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5dt01887k2.cif
_cod_data_source_block           compound_1
_cod_depositor_comments
'Adding full bibliography for 1575761--1575772.cif.'
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               1575761
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.668
_shelx_estimated_absorpt_t_max   0.833
_shelx_res_checksum              82192