Synthetic Models of the Reduced Active Site of Superoxide Reductase
Jason A. Halfen; Heather L. Moore; Derek C. Fox; Inorganic Chemistry 41 (2002) 3935–3943; doi:10.1021/ic025517l

data_4318266
_publ_section_title
;
 Synthetic Models of the Reduced Active Site of Superoxide Reductase
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3935
_journal_page_last               3943
_journal_paper_doi               10.1021/ic025517l
_journal_volume                  41
_journal_year                    2002
_chemical_formula_sum            'C18 H24 Cl2 Fe N4'
_chemical_formula_weight         423.16
_chemical_name_common            '[(L8py2)FeCl2] (1)'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 126.94(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.786(6)
_cell_length_b                   7.8401(5)
_cell_length_c                   13.805(4)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      22.35
_cell_measurement_theta_min      5.52
_cell_volume                     1971.1(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  CAD4
_diffrn_measurement_method       'omega 2-theta scans'
_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  0.0284
_diffrn_reflns_av_sigmaI/netI    0.0485
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            1779
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         2.83
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  '5400 seconds'
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    1.044
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9154
_exptl_absorpt_correction_type   'psi-scan corrections'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.426
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.216
_refine_diff_density_min         -0.240
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     141
_refine_ls_number_reflns         1734
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0635
_refine_ls_R_factor_gt           0.0313
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0298P)^2^+0.9721P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0726
_refine_ls_wR_factor_ref         0.0818
_reflns_number_gt                1339
_reflns_number_total             1734
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic025517l_s1_1.cif
_cod_data_source_block           compd1
_cod_original_cell_volume        1971.1(8)
_cod_database_code               4318266