Bimetallic nickel complexes supported by 2,5-bis(phosphine)-1,4-hydroquinonate ligands. Structural, electrochemical and theoretical investigations
Louis R. Pignotti; Rudy L. Luck; Nihal Deligonul; John D. Protasiewicz; Kevin E. Johnson; Lillian P. Nguyen; Eugenijus Urnezius; Inorganica Chimica Acta 424 (2015) 275–285; doi:

data_1518925
_publ_section_title
;
 Bimetallic nickel complexes supported by
 2,5-bis(phosphine)-1,4-hydroquinonate ligands. Structural,
 electrochemical and theoretical investigations
;
_journal_name_full               'Inorganica Chimica Acta'
_journal_page_first              275
_journal_page_last               285
_journal_volume                  424
_journal_year                    2015
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C28 H38 F2 Ni2 O2 P2'
_chemical_formula_sum            'C28 H38 F2 Ni2 O2 P2'
_chemical_formula_weight         623.90
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 109.04(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.224(1)
_cell_length_b                   15.740(5)
_cell_length_c                   13.056(5)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      10
_cell_measurement_wavelength     0.71073
_cell_volume                     1403.3(7)
_computing_cell_refinement       'CAD4 Express (Enraf Nonius, 1994)'
_computing_data_collection       'CAD4 Express (Enraf Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector                 'scintillation LiI'
_diffrn_detector_dtime           1.195
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Enraf Nonius TurboCAD4'
_diffrn_measurement_method       'non-profiled \w/2\t scans'
_diffrn_orient_matrix_type
;
  x-axis points to radiation source
  the matrix is specified in reciprocal space
;
_diffrn_orient_matrix_UB_11      -0.019121
_diffrn_orient_matrix_UB_12      0.034833
_diffrn_orient_matrix_UB_13      -0.067521
_diffrn_orient_matrix_UB_21      -0.077431
_diffrn_orient_matrix_UB_22      -0.046811
_diffrn_orient_matrix_UB_23      -0.041947
_diffrn_orient_matrix_UB_31      -0.117844
_diffrn_orient_matrix_UB_32      0.025102
_diffrn_orient_matrix_UB_33      0.015685
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0172
_diffrn_reflns_av_unetI/netI     0.0239
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       1
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            2977
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.1
_diffrn_source                   'Enraf Nonius FR590'
_diffrn_standards_decay_%        2
_diffrn_standards_interval_time  166
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.493
_exptl_absorpt_correction_T_max  0.996
_exptl_absorpt_correction_T_min  0.8389
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details
;
North A.C.T., Phillips D.C. & Mathews F.S. (1968) Acta. Cryst. A24, 351
        Number of psi-scan sets used was   9
        Theta correction was applied.
        Averaged transmission function was used.
        No Fourier smoothing was applied.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.477
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             652
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.279
_refine_diff_density_min         -0.32
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.06
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2470
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.06
_refine_ls_R_factor_all          0.0387
_refine_ls_R_factor_gt           0.0266
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0352P)^2^+0.5982P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0658
_refine_ls_wR_factor_ref         0.0702
_reflns_number_gt                2102
_reflns_number_total             2470
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ICA-2015-424-274-285-2.cif
_cod_data_source_block           2
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1518925