An 18+δ iridium dimer releasing metalloradicals spontaneously.
Chen, Tsun-Ren; Lee, Hsiu-Pen; Chen, Jhy-Der; Chen, Kelvin H.-C.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 9458–9461; doi:10.1039/c0dt00605j

data_7026693
_publ_section_title
;
 An 18+\d iridium dimer releasing metalloradicals spontaneously.
;
_journal_issue                   40
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9458
_journal_page_last               9461
_journal_paper_doi               10.1039/c0dt00605j
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C41 H23 F4 Ir N2 O4'
_chemical_formula_sum            'C41 H23 F4 Ir N2 O4'
_chemical_formula_weight         875.81
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
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_symmetry_space_group_name_Hall  '-P 1'
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_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                102.358(2)
_cell_angle_beta                 95.205(2)
_cell_angle_gamma                94.203(2)
_cell_formula_units_Z            4
_cell_length_a                   12.0381(3)
_cell_length_b                   14.6705(4)
_cell_length_c                   19.5320(5)
_cell_measurement_reflns_used    14506
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      29.2931
_cell_measurement_theta_min      2.7624
_cell_volume                     3340.36(15)
_computing_cell_refinement
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CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET)
(compiled Jun 10 2008,16:49:55)
;
_computing_data_collection
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CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET)
(compiled Jun 10 2008,16:49:55)
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_computing_data_reduction
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CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET)
(compiled Jun 10 2008,16:49:55)
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_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      120(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.838
_diffrn_measurement_device_type  'CCD detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.0362
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_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            29949
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         29.38
_diffrn_reflns_theta_min         2.77
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    4.067
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.70376
_exptl_absorpt_correction_type   multi-scan
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.48 (release 15-09-2009 CrysAlis171 .NET)
(compiled Sep 15 2009,11:49:04)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
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_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.742
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1712
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.28
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_refine_diff_density_max         3.243
_refine_diff_density_min         -7.492
_refine_diff_density_rms         0.170
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.132
_refine_ls_matrix_type           full
_refine_ls_number_parameters     911
_refine_ls_number_reflns         15412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.132
_refine_ls_R_factor_all          0.0874
_refine_ls_R_factor_gt           0.0516
_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^)+(0.0534P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1161
_refine_ls_wR_factor_ref         0.1225
_reflns_number_gt                9910
_reflns_number_total             15412
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00605j.txt
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_cod_original_cell_volume        3340.35(15)
_cod_database_code               7026693