Iron(III) activation hits a [4 + 4] macrocycle.
Hewitt, Ian J.; Tang, Jin-Kui; Madhu, N. T.; Pilawa, Bernd; Anson, Christopher E.; Brooker, Sally; Powell, Annie K.; Dalton transactions (Cambridge, England : 2003)  (2005) 429–432; doi:10.1039/b416250a

data_7008055
_publ_section_title
;
 Iron(III) activation hits a [4 + 4] macrocycle.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              429
_journal_page_last               432
_journal_paper_doi               10.1039/b416250a
_journal_year                    2005
_chemical_formula_sum            'C104 H184 Fe4 N16 O28'
_chemical_formula_weight         2330.07
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                92.718(10)
_cell_angle_beta                 110.611(9)
_cell_angle_gamma                116.077(8)
_cell_formula_units_Z            1
_cell_length_a                   13.3789(15)
_cell_length_b                   14.7358(17)
_cell_length_c                   17.610(2)
_cell_measurement_reflns_used    9274
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      23.99
_cell_measurement_theta_min      1.29
_cell_volume                     2833.1(7)
_computing_cell_refinement       'X-Area 1.09 (Stoe & Cie GmbH, 2000)'
_computing_data_collection       'WinXpose 1.05 (Stoe & Cie GmbH, 2000)'
_computing_data_reduction        'X-Area 1.09 (Stoe & Cie GmbH, 2000)'
_computing_molecular_graphics    'XP: SHELXTL 5.1 (Bruker AXS Inc., 1997)'
_computing_publication_material  'XCIF: SHELXTL 5.1 (Bruker AXS Inc., 1997)'
_computing_structure_refinement  'XL: SHELXTL 5.1 (Bruker AXS Inc., 1997)'
_computing_structure_solution    'XS: SHELXTL 5.1 (Bruker AXS Inc., 1997)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 6.667
_diffrn_measured_fraction_theta_full 0.922
_diffrn_measured_fraction_theta_max 0.922
_diffrn_measurement_device_type  'Stoe IPDS II'
_diffrn_measurement_method       'area detector'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0327
_diffrn_reflns_av_sigmaI/netI    0.0405
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            14083
_diffrn_reflns_theta_full        24.04
_diffrn_reflns_theta_max         24.04
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    0.582
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.664
_refine_diff_density_min         -0.592
_refine_diff_density_rms         0.084
_refine_ls_extinction_coef       0.032(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     703
_refine_ls_number_reflns         8243
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0779
_refine_ls_R_factor_gt           0.0599
_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^)+(0.1092P)^2^+1.7267P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1576
_refine_ls_wR_factor_ref         0.1701
_reflns_number_gt                6397
_reflns_number_total             8243
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b416250a.txt
_cod_data_source_block           ian73_5
_cod_original_cell_volume        2833.1(6)
_cod_database_code               7008055