How Innocent are Potentially Redox Non-Innocent Ligands? Electronic Structure and Metal Oxidation States in Iron-PNN Complexes as a Representative Case Study.
Butschke, Burkhard; Fillman, Kathlyn L.; Bendikov, Tatyana; Shimon, Linda J. W.; Diskin-Posner, Yael; Leitus, Gregory; Gorelsky, Serge I.; Neidig, Michael L.; Milstein, David; Inorganic chemistry 54 (2015) 4909–4926; doi:10.1021/acs.inorgchem.5b00509

data_4342925
_publ_section_title
;
 How Innocent are Potentially Redox Non-Innocent Ligands? Electronic
 Structure and Metal Oxidation States in Iron-PNN Complexes as a
 Representative Case Study.
;
_journal_issue                   10
_journal_name_full               'Inorganic chemistry'
_journal_page_first              4909
_journal_page_last               4926
_journal_paper_doi               10.1021/acs.inorgchem.5b00509
_journal_volume                  54
_journal_year                    2015
_chemical_formula_moiety         '2(C27 H37 Fe N2 O2 P), 2(B F4), C4 H8 O'
_chemical_formula_sum            'C29 H41 B F4 Fe N2 O2.5 P'
_chemical_formula_weight         631.27
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 114.366(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.743(4)
_cell_length_b                   8.7736(12)
_cell_length_c                   18.932(3)
_cell_measurement_reflns_used    13304
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.18
_cell_measurement_theta_min      2.5
_cell_volume                     3289.9(9)
_computing_cell_refinement       'Bruker Apex2'
_computing_data_collection       'Bruker Apex2'
_computing_data_reduction        'Bruker Apex2'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Bruker KappaApexII CCD'
_diffrn_measurement_method       'phi and omega scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0438
_diffrn_reflns_av_sigmaI/netI    0.0725
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            12840
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         2.60
_exptl_absorpt_coefficient_mu    0.558
_exptl_absorpt_correction_T_max  0.9889
_exptl_absorpt_correction_T_min  0.8504
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.275
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1324
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.258
_refine_diff_density_min         -0.536
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     373
_refine_ls_number_reflns         5900
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0976
_refine_ls_R_factor_gt           0.0598
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1062P)^2^+2.8507P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1586
_refine_ls_wR_factor_ref         0.1835
_reflns_number_gt                4027
_reflns_number_total             5900
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic5b00509_si_002.cif
_cod_data_source_block           compound3
_cod_depositor_comments
'Adding full bibliography for 4342923--4342928.cif.'
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_original_formula_sum        'C29 H41 B F4 Fe N2 O2.50 P'
_cod_database_code               4342925