Ligand-Centered Redox Activity: Redox Properties of 3d Transition Metal Ions Ligated by the Weak-Field Tris(pyrrolyl)ethane Trianion
Graham T. Sazama; Theodore A. Betley; Inorganic Chemistry 49 (2010) 2512–2524; doi:10.1021/ic100028y

data_4314939
_publ_contact_author_address
;Department of Chemistry and Chemical Biology
Harvard University
Mallinckrodt 306E
12 Oxford Street
Cambridge, MA 02139
;
_publ_contact_author_email       betley@chemistry.harvard.edu
_publ_contact_author_name        'Theodore A. Betley'
_publ_contact_author_phone       617-496-9944
_publ_section_title
;
 Ligand-Centered Redox Activity: Redox Properties of 3d Transition Metal
 Ions Ligated by the Weak-Field Tris(pyrrolyl)ethane Trianion
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2512
_journal_page_last               2524
_journal_paper_doi               10.1021/ic100028y
_journal_volume                  49
_journal_year                    2010
_chemical_compound_source        'chemical synthesis'
_chemical_formula_sum            'C51 H53 Fe N5'
_chemical_formula_weight         791.83
_chemical_name_common            '[(tpeH)Fe(py)2]'
_chemical_properties_physical
'air-sensitive, moisture-sensitive, oxygen-sensitive, paramagnetic'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 96.992(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.448(5)
_cell_length_b                   14.460(4)
_cell_length_c                   16.137(4)
_cell_measurement_reflns_used    2576
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      21.49
_cell_measurement_theta_min      2.22
_cell_volume                     4273(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0878
_diffrn_reflns_av_sigmaI/netI    0.0931
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            28186
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.79
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.394
_exptl_absorpt_correction_T_max  0.9692
_exptl_absorpt_correction_T_min  0.8943
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Square
_exptl_crystal_F_000             1680
_exptl_crystal_recrystallization_method 'diethyl ether'
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.453
_refine_diff_density_min         -0.469
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     524
_refine_ls_number_reflns         8320
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.1079
_refine_ls_R_factor_gt           0.0539
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0446P)^2^+0.7760P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1058
_refine_ls_wR_factor_ref         0.1271
_reflns_number_gt                4992
_reflns_number_total             8320
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic100028y_si_002_6.cif
_cod_data_source_block           gts014
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4314939