Iron(II) Complexes Containing Unsymmetrical P-N-P' Pincer Ligands for the Catalytic Asymmetric Hydrogenation of Ketones and Imines.
Lagaditis, Paraskevi O.; Sues, Peter E.; Sonnenberg, Jessica F.; Wan, Kai Yang; Lough, Alan J.; Morris, Robert H.; Journal of the American Chemical Society 136 (2014) 1367–1380; doi:10.1021/ja4082233

data_4120483
_publ_section_title
;
 Iron(II) Complexes Containing Unsymmetrical P-N-P' Pincer Ligands for the
 Catalytic Asymmetric Hydrogenation of Ketones and Imines.
;
_journal_issue                   4
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1367
_journal_page_last               1380
_journal_paper_doi               10.1021/ja4082233
_journal_volume                  136
_journal_year                    2014
_chemical_formula_moiety         'C29 H39 Br2 Fe N O P2, 2(C4 H8 O)'
_chemical_formula_sum            'C37 H55 Br2 Fe N O3 P2'
_chemical_formula_weight         839.43
_chemical_name_systematic
; 
 ? 
;
_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                 101.087(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.7184(5)
_cell_length_b                   19.4893(7)
_cell_length_c                   14.7566(5)
_cell_measurement_reflns_used    9925
_cell_measurement_temperature    147(2)
_cell_measurement_theta_max      66.32
_cell_measurement_theta_min      3.28
_cell_volume                     3871.7(2)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      147(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'Bruker Kappa APEX-DUO CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer optics'
_diffrn_radiation_source         'Bruker microsource'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0388
_diffrn_reflns_av_sigmaI/netI    0.0340
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            26003
_diffrn_reflns_theta_full        66.53
_diffrn_reflns_theta_max         66.53
_diffrn_reflns_theta_min         3.28
_exptl_absorpt_coefficient_mu    6.592
_exptl_absorpt_correction_T_max  0.7528
_exptl_absorpt_correction_T_min  0.6532
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            violet
_exptl_crystal_density_diffrn    1.440
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1736
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.838
_refine_diff_density_min         -0.673
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     415
_refine_ls_number_reflns         6650
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0424
_refine_ls_R_factor_gt           0.0340
_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^)+(0.0456P)^2^+3.9373P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0847
_refine_ls_wR_factor_ref         0.0894
_reflns_number_gt                5702
_reflns_number_total             6650
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja4082233_si_002.cif
_cod_data_source_block           2a_trans-[Fe(Cy2PCH2CHNC2H4PPH2)(Br)2(CO)]
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4120483