The Mechanism of N-N Double Bond Cleavage by an Iron(II) Hydride Complex.
Bellows, Sarina M.; Arnet, Nicholas A.; Gurubasavaraj, Prabhuodeyara M.; Brennessel, William W.; Bill, Eckhard; Cundari, Thomas R.; Holland, Patrick L.; Journal of the American Chemical Society 138 (2016) 12112–12123; doi:10.1021/jacs.6b04654

data_4130566
_publ_section_title
;
 The Mechanism of N-N Double Bond Cleavage by an Iron(II) Hydride Complex.
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_journal_issue                   37
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12112
_journal_page_last               12123
_journal_paper_doi               10.1021/jacs.6b04654
_journal_volume                  138
_journal_year                    2016
_chemical_formula_moiety         'C50 H66 Fe2 N4'
_chemical_formula_sum            'C50 H66 Fe2 N4'
_chemical_formula_weight         834.77
_chemical_name_common            holpg10
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                89.191(1)
_cell_angle_beta                 88.782(1)
_cell_angle_gamma                82.439(1)
_cell_formula_units_Z            2
_cell_length_a                   8.3664(5)
_cell_length_b                   10.6963(7)
_cell_length_c                   23.4901(15)
_cell_measurement_reflns_used    4086
_cell_measurement_temperature    100.0(1)
_cell_measurement_theta_max      27.37
_cell_measurement_theta_min      2.57
_cell_volume                     2083.2(2)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2010)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      100.0(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART APEX II CCD Platform'
_diffrn_measurement_method       'area detector, \w scans per \f'
_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  0.0856
_diffrn_reflns_av_sigmaI/netI    0.0802
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            39154
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.73
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.737
_exptl_absorpt_correction_T_max  0.9571
_exptl_absorpt_correction_T_min  0.8315
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            'dark orange'
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             892
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.134
_refine_diff_density_min         -0.537
_refine_diff_density_rms         0.079
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     601
_refine_ls_number_reflns         10329
_refine_ls_number_restraints     132
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.1005
_refine_ls_R_factor_gt           0.0539
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0573P)^2^+0.8573P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1166
_refine_ls_wR_factor_ref         0.1363
_reflns_number_gt                6602
_reflns_number_total             10329
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja6b04654_si_002.cif
_cod_data_source_block           3
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4130566