Effects of N<sub>2</sub> Binding Mode on Iron-Based Functionalization of Dinitrogen to Form an Iron(III) Hydrazido Complex.
McWilliams, Sean F.; Bill, Eckhard; Lukat-Rodgers, Gudrun; Rodgers, Kenton R.; Mercado, Brandon Q.; Holland, Patrick L.; Journal of the American Chemical Society 140 (2018) 8586–8598; doi:10.1021/jacs.8b04828

data_4132553
_publ_section_title
;
 Effects of N<sub>2</sub> Binding Mode on Iron-Based Functionalization of
 Dinitrogen to Form an Iron(III) Hydrazido Complex.
;
_journal_issue                   27
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8586
_journal_page_last               8598
_journal_paper_doi               10.1021/jacs.8b04828
_journal_volume                  140
_journal_year                    2018
_chemical_formula_moiety         'C35 H59 Fe N4 Si2'
_chemical_formula_sum            'C35 H59 Fe N4 Si2'
_chemical_formula_weight         647.89
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     SHELXT
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 113.6430(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   21.1375(15)
_cell_length_b                   20.4561(14)
_cell_length_c                   18.8550(13)
_cell_measurement_reflns_used    1387
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      68.3
_cell_measurement_theta_min      2.6
_cell_volume                     7468.4(9)
_computing_cell_refinement
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_data_collection
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_data_reduction
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_molecular_graphics
; 
Dolomanov, O.V.; Bourhis, L.J.; Gildea, R.J.; Howard, J.A.K.; Puschmann, H., 
OLEX2: A complete structure solution, refinement and analysis program 
(2009). J. Appl. Cryst., 42, 339-341. 
;
_computing_publication_material  'CIFTAB-2014/2 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 22.2
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Rigaku Saturn 944+ CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.1072
_diffrn_reflns_av_unetI/netI     0.0368
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            250961
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.198
_diffrn_reflns_theta_min         3.142
_diffrn_source                   'microfocus rotating anode'
_exptl_absorpt_coefficient_mu    4.051
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.572
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private Communication'
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.152
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             2808
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.090
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.446
_refine_diff_density_min         -0.362
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     789
_refine_ls_number_reflns         13520
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0627
_refine_ls_R_factor_gt           0.0448
_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^)+(0.0576P)^2^+5.4748P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1119
_refine_ls_wR_factor_ref         0.1228
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10512
_reflns_number_total             13520
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b04828_si_003.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4132553
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.529
_shelx_estimated_absorpt_t_max   0.888
_shelx_res_checksum              28114
_shelx_hkl_checksum              11729