Persistent four-coordinate iron-centered radical stabilized by π-donation
Sunada, Yusuke; Ishida, Shintaro; Hirakawa, Fumiya; Shiota, Yoshihito; Yoshizawa, Kazunari; Kanegawa, Shinji; Sato, Osamu; Nagashima, Hideo; Iwamoto, Takeaki; Chem. Sci. 7 (2016) 191–; doi:10.1039/C5SC02601F

data_1532505
_publ_section_title
;
 Persistent four-coordinate iron-centered radical stabilized by
 \p-donation
;
_journal_issue                   1
_journal_name_full               'Chem. Sci.'
_journal_page_first              191
_journal_paper_doi               10.1039/C5SC02601F
_journal_volume                  7
_journal_year                    2016
_chemical_formula_moiety         'C22 H49 Fe O3 P Si5'
_chemical_formula_sum            'C22 H49 Fe O3 P Si5'
_chemical_formula_weight         588.88
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_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_update_record
;
2015-03-31 deposited with the CCDC.
2015-09-25 downloaded from the CCDC.
;
_cell_angle_alpha                83.758(15)
_cell_angle_beta                 76.946(13)
_cell_angle_gamma                60.902(8)
_cell_formula_units_Z            2
_cell_length_a                   11.1846(9)
_cell_length_b                   11.2283(10)
_cell_length_c                   14.972(2)
_cell_measurement_reflns_used    4989
_cell_measurement_temperature    123
_cell_measurement_theta_max      30.47
_cell_measurement_theta_min      2.08
_cell_volume                     1600.5(3)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'Il Milione (Burla, et al., 2007)'
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 14.222
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Rigaku Saturn724'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0405
_diffrn_reflns_laue_measured_fraction_full 0.000
_diffrn_reflns_laue_measured_fraction_max 0.000
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            15690
_diffrn_reflns_point_group_measured_fraction_full 0.000
_diffrn_reflns_point_group_measured_fraction_max 0.000
_diffrn_reflns_theta_full        27.480
_diffrn_reflns_theta_max         27.480
_diffrn_reflns_theta_min         3.156
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.728
_exptl_absorpt_correction_T_max  0.989
_exptl_absorpt_correction_T_min  0.888
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            palegreen
_exptl_crystal_density_diffrn    1.222
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             632.00
_exptl_crystal_size_max          0.050
_exptl_crystal_size_mid          0.020
_exptl_crystal_size_min          0.015
_refine_diff_density_max         0.47
_refine_diff_density_min         -0.42
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     289
_refine_ls_number_reflns         7170
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0561
_refine_ls_R_factor_gt           0.0444
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0434P)^2^+1.0913P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0977
_refine_ls_wR_factor_ref         0.1048
_reflns_number_gt                6025
_reflns_number_total             7170
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c5sc02601f2.cif
_cod_data_source_block           (Prad)Fe(CO)3(SiMe3)
_cod_depositor_comments
'Adding full bibliography for 1532503--1532506.cif.'
_cod_database_code               1532505