Hydrazine Capture and N-N Bond Cleavage at Iron Enabled by Flexible Appended Lewis Acids.
Kiernicki, John J.; Zeller, Matthias; Szymczak, Nathaniel K.; Journal of the American Chemical Society  (2017) –; doi:10.1021/jacs.7b11465

data_4126832
_publ_section_title
;
 Hydrazine Capture and N-N Bond Cleavage at Iron Enabled by Flexible
 Appended Lewis Acids.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b11465
_journal_year                    2017
_chemical_formula_sum            'C27 H41 Br2 Fe N5'
_chemical_formula_weight         651.32
_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'
_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-2016/6
_cell_angle_alpha                90
_cell_angle_beta                 104.4502(8)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.5028(3)
_cell_length_b                   39.8514(7)
_cell_length_c                   9.9718(2)
_cell_measurement_reflns_used    9930
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      79.1968
_cell_measurement_theta_min      2.9437
_cell_volume                     5965.8(2)
_computing_cell_refinement       'SAINT V8.37A (Bruker, 2016)'
_computing_data_collection       'Apex3 v2016.9-0 (Bruker, 2016)'
_computing_data_reduction        'SAINT V8.37A (Bruker, 2016)'
_computing_structure_refinement
;  
SHELXL-2016/6 (Sheldrick, 2015, 2016), 
SHELXLE Rev714 (H\"ubschle et al., 2011)
;
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.937
_diffrn_measurement_device_type  'Bruker AXS D8 Quest CMOS diffractometer'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'laterally graded multilayer (Goebel) mirror'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0531
_diffrn_reflns_av_unetI/netI     0.0468
_diffrn_reflns_Laue_measured_fraction_full 0.986
_diffrn_reflns_Laue_measured_fraction_max 0.937
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       49
_diffrn_reflns_limit_k_min       -48
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            34400
_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.937
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         79.864
_diffrn_reflns_theta_min         2.943
_diffrn_source                   'I-mu-S microsource X-ray tube'
_exptl_absorpt_coefficient_mu    7.365
_exptl_absorpt_correction_T_max  0.7543
_exptl_absorpt_correction_T_min  0.4536
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.450
_exptl_crystal_description       block
_exptl_crystal_F_000             2672
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.210
_exptl_crystal_size_min          0.130
_refine_diff_density_max         0.776
_refine_diff_density_min         -0.757
_refine_diff_density_rms         0.086
_refine_ls_extinction_coef       0.000188(19)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     648
_refine_ls_number_reflns         12191
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0410
_refine_ls_R_factor_gt           0.0367
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0377P)^2^+6.4517P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0911
_refine_ls_wR_factor_ref         0.0937
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11147
_reflns_number_total             12191
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            BuPDPFeBr2.cif
_cod_data_source_block           JK1260_0m
_cod_database_code               4126832
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.202
_shelx_estimated_absorpt_t_max   0.448
_shelx_res_checksum              21925
_shelx_hkl_checksum              57554