Modeling Features of the Non-Heme Diiron Cores in O2-Activating Enzymes through the Synthesis, Characterization, and Oxidation of 1,8-Naphthyridine-Based Complexes
Jane Kuzelka; Sumitra Mukhopadhyay; Bernhard Spingler; Stephen J. Lippard; Inorganic Chemistry 42 (2003) 6447–6457; doi:10.1021/ic0345976

data_4314377
_publ_section_title
;
 Modeling Features of the Non-Heme Diiron Cores in O2-Activating Enzymes
 through the Synthesis, Characterization, and Oxidation of
 1,8-Naphthyridine-Based Complexes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6447
_journal_page_last               6457
_journal_paper_doi               10.1021/ic0345976
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C51 H42 Cl2 F6 Fe2 N8 O10 S2'
_chemical_formula_weight         1287.65
_chemical_name_systematic
;

   ?

;
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.383(3)
_cell_length_b                   13.4299(15)
_cell_length_c                   18.332(2)
_cell_measurement_temperature    188(2)
_cell_volume                     5510.6(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      188(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0705
_diffrn_reflns_av_sigmaI/netI    0.0518
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            26661
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.784
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.902074
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.552
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2624
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.178
_refine_diff_density_min         -0.587
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.112
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     368
_refine_ls_number_reflns         4848
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.112
_refine_ls_R_factor_all          0.0997
_refine_ls_R_factor_gt           0.0627
_refine_ls_shift/su_max          0.040
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0773P)^2^+7.2559P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1488
_refine_ls_wR_factor_ref         0.1680
_reflns_number_gt                3320
_reflns_number_total             4848
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0345976si20030603_013738_1.cif
_cod_data_source_block           1
_cod_database_code               4314377