Low-Valent Ene-Amido Iron Complexes for the Asymmetric Transfer Hydrogenation of Acetophenone without Base
Paraskevi O. Lagaditis; Alan J. Lough; Robert H. Morris; Journal of the American Chemical Society 133 (2011) 9662–9665; doi:10.1021/ja202375y

data_4106319
_publ_section_title
;
 Low-Valent Ene-Amido Iron Complexes for the Asymmetric Transfer
 Hydrogenation of Acetophenone without Base
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9662
_journal_page_last               9665
_journal_paper_doi               10.1021/ja202375y
_journal_volume                  133
_journal_year                    2011
_chemical_formula_moiety         'C23 H38 Br Fe N2 O P2, C24 H20 B'
_chemical_formula_sum            'C47 H58 B Br Fe N2 O P2'
_chemical_formula_weight         875.46
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_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                67.535(1)
_cell_angle_beta                 78.906(1)
_cell_angle_gamma                70.363(1)
_cell_formula_units_Z            4
_cell_length_a                   13.1562(2)
_cell_length_b                   18.2131(3)
_cell_length_c                   20.7991(3)
_cell_measurement_reflns_used    61393
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.6
_cell_volume                     4325.97(12)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius B.V., 1997-2002)'
_computing_data_reduction        Denzo-SMN
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXTL V6.1'
_computing_structure_refinement  'SHELXTL V6.1 (Sheldrick, 2008)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_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  0.0636
_diffrn_reflns_av_sigmaI/netI    0.0814
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            61393
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.59
_exptl_absorpt_coefficient_mu    1.384
_exptl_absorpt_correction_T_max  0.882
_exptl_absorpt_correction_T_min  0.778
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.344
_exptl_crystal_description       block
_exptl_crystal_F_000             1832
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.626
_refine_diff_density_min         -0.739
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.993
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1006
_refine_ls_number_reflns         19594
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.1070
_refine_ls_R_factor_gt           0.0499
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0597P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1079
_refine_ls_wR_factor_ref         0.1303
_reflns_number_gt                11598
_reflns_number_total             19594
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja202375y_si_002_2.cif
_cod_data_source_block           4b
_cod_original_cell_volume        4325.98(12)
_cod_database_code               4106319