Competing H2 versus Intramolecular C-H Activation at a Dinuclear Nickel Complex via Metal-Metal Cooperative Oxidative Addition.
Stevens, Hendrik; Duan, Peng-Cheng; Dechert, Sebastian; Meyer, Franc; Journal of the American Chemical Society  (2020) –; doi:10.1021/jacs.0c00758

data_4134545
_publ_section_title
;
 Competing H2 versus Intramolecular C-H Activation at a Dinuclear Nickel
 Complex via Metal-Metal Cooperative Oxidative Addition.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.0c00758
_journal_year                    2020
_chemical_formula_moiety
'C51 H47 N6 Ni2 -, C18 H36 K N2 O6 +, 2(C4 H8 O)'
_chemical_formula_sum            'C77 H99 K N8 Ni2 O8'
_chemical_formula_weight         1421.16
_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'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                90
_cell_angle_beta                 95.2380(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.3579(3)
_cell_length_b                   17.4833(2)
_cell_length_c                   27.2615(5)
_cell_measurement_reflns_used    80822
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      25.741
_cell_measurement_theta_min      1.385
_cell_volume                     7289.3(2)
_computing_cell_refinement       'X-AREA (Stoe & Cie, 2015)'
_computing_data_collection       'X-AREA (Stoe & Cie, 2015)'
_computing_data_reduction        'X-AREA (Stoe & Cie, 2015)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 2012)'
_computing_publication_material  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT-2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Stoe IPDS II'
_diffrn_measurement_method       \w
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0447
_diffrn_reflns_av_unetI/netI     0.0220
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            80822
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.741
_diffrn_reflns_theta_min         1.385
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.634
_exptl_absorpt_correction_T_max  0.8880
_exptl_absorpt_correction_T_min  0.7545
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'X-RED (Stoe & Cie, 2015)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.295
_exptl_crystal_description       block
_exptl_crystal_F_000             3024
_exptl_crystal_size_max          0.430
_exptl_crystal_size_mid          0.320
_exptl_crystal_size_min          0.250
_refine_diff_density_max         0.292
_refine_diff_density_min         -0.336
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     923
_refine_ls_number_reflns         13774
_refine_ls_number_restraints     110
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0495
_refine_ls_R_factor_gt           0.0340
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0429P)^2^+2.9109P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0828
_refine_ls_wR_factor_ref         0.0906
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10916
_reflns_number_total             13774
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja0c00758_si_002.cif
_cod_data_source_block           3Kcrypt-hs296
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4134545
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.772
_shelx_estimated_absorpt_t_max   0.858
_shelx_res_checksum              1691
_shelx_hkl_checksum              47379