Exploring the bimodal nature of a nickel-based catalytic system for the hydrogenation of alkenes and polycyclic aromatic hydrocarbons
Redl, Samuel; Halas, Simon; Monkowius, Uwe; Topf, Christoph; Catalysis Science & Technology 16 (2026) 1238–1249; doi:10.1039/D5CY01341K

data_1576625
_publ_section_title
;
 Exploring the bimodal nature of a nickel-based catalytic system for the
 hydrogenation of alkenes and polycyclic aromatic hydrocarbons
;
_journal_issue                   4
_journal_name_full               'Catalysis Science &amp; Technology'
_journal_page_first              1238
_journal_page_last               1249
_journal_paper_doi               10.1039/D5CY01341K
_journal_volume                  16
_journal_year                    2026
_chemical_formula_sum            'C47 H58 N4 Ni2'
_chemical_formula_weight         796.39
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method
;FinalCif 2024.9-1 by Daniel Kratzert, Freiburg 2025, 
https://dkratzert.de/finalcif.html
;
_audit_update_record
;
2025-10-07 deposited with the CCDC.	2026-01-08 downloaded from the CCDC.
;
_cell_angle_alpha                104.655(9)
_cell_angle_beta                 103.443(9)
_cell_angle_gamma                95.282(9)
_cell_formula_units_Z            2
_cell_length_a                   11.702(3)
_cell_length_b                   14.611(3)
_cell_length_c                   15.051(3)
_cell_measurement_reflns_used    9838
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.1
_cell_measurement_theta_min      2.4
_cell_measurement_wavelength     0.71073
_cell_volume                     2390.1(9)
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 1503)'
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker Quest D8 Eco'
_diffrn_measurement_method       "'\f and \w scans'"
_diffrn_measurement_specimen_support 'MiTeGen micromount'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0618
_diffrn_reflns_av_unetI/netI     0.0361
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            197418
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.448
_diffrn_reflns_theta_min         2.503
_exptl_absorpt_coefficient_mu    0.82
_exptl_absorpt_correction_T_max  0.892
_exptl_absorpt_correction_T_min  0.673
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Krause, L., Herbst-Irmer, R., Sheldrick, G. M., Stalke, D. (2015).
"Comparison of silver and molybdenum microfocus X-ray sources for
single-crystal structure determination"
J. Appl. Cryst. 48, 3-10.
doi:10.1107/S1600576714022985
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.107
_exptl_crystal_description       plate
_exptl_crystal_F_000             848
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: toluene'
_exptl_crystal_size_max          0.525
_exptl_crystal_size_mid          0.223
_exptl_crystal_size_min          0.142
_refine_diff_density_max         1.302
_refine_diff_density_min         -0.455
_refine_diff_density_rms         0.138
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     486
_refine_ls_number_reflns         9814
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0938
_refine_ls_R_factor_gt           0.0647
_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^)+(0.1577P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2086
_refine_ls_wR_factor_ref         0.2266
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6611
_reflns_number_total             9814
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cy01341k2.cif
_cod_data_source_block           SR_Ni_dimer_0m_a
_cod_database_code               1576625
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.673
_shelx_estimated_absorpt_t_max   0.892
_geom_details
; All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;
_shelx_res_checksum              17076