IrII(ethene): Metal or Carbon Radical?
Dennis G. H. Hetterscheid; Jasper Kaiser; Eduard Reijerse; Theo P. J. Peters; Simone Thewissen; Arno N. J. Blok; Jan M. M. Smits; René de Gelder; Bas de Bruin; Journal of the American Chemical Society 127 (2005) 1895–1905; doi:10.1021/ja0439470

data_4111445
_publ_contact_author
;
        Dr. B. de Bruin
        Department of Metal-Organic Chemistry
        Institute for Molecules and Materials
        Radboud University Nijmegen
        Toernooiveld 1
        NL-6525 ED  Nijmegen
        The Netherlands
;
_publ_contact_author_email       BdeBruin@sci.kun.nl
_publ_contact_author_fax         '031 024 3553450'
_publ_contact_author_phone       '031 024 3652464'
_publ_section_title
;
 IrII(ethene): Metal or Carbon Radical?
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1895
_journal_page_last               1905
_journal_paper_doi               10.1021/ja0439470
_journal_volume                  127
_journal_year                    2005
_chemical_formula_sum            'C23 H28 F12 Ir N4 P2'
_chemical_formula_weight         842.63
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2001-11-27
_audit_creation_method           'SHELXL, adapted and expanded'
_cell_angle_alpha                90.00
_cell_angle_beta                 109.734(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.072(2)
_cell_length_b                   12.454(2)
_cell_length_c                   18.860(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12.601
_cell_measurement_theta_min      10.320
_cell_volume                     2890.1(8)
_computing_data_collection
;
CAD4 EXPRESS (Enraf-Nonius, 1994)
;
_computing_data_reduction
;
local programs (Smits et al., 1988),
profile analysis (Lehman & Larsen, 1974, Grant & Gabe, 1978),
EMPABS (North et al., 1968)
;
_computing_molecular_graphics
;
PLATON (Spek, 2003),
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
DIRDIF (Beurskens et al., 1996),
PATTY (Beurskens et al., 1987)
;
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.00
_diffrn_measurement_device       'Nonius CAD4'
_diffrn_measurement_method       \w/2\q-scan
_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  0.0199
_diffrn_reflns_av_sigmaI/netI    0.0274
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            6860
_diffrn_reflns_theta_full        27.42
_diffrn_reflns_theta_max         27.42
_diffrn_reflns_theta_min         2.82
_diffrn_standards_decay_%        13.415
_diffrn_standards_interval_time  7200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    4.830
_exptl_absorpt_correction_T_max  0.419
_exptl_absorpt_correction_T_min  0.388
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North, Phillips & Mathews, 1968)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.937
_exptl_crystal_description       'rather regular fragment'
_exptl_crystal_F_000             1636
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.589
_refine_diff_density_min         -2.017
_refine_diff_density_rms         0.136
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.051
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     382
_refine_ls_number_reflns         6569
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0546
_refine_ls_R_factor_gt           0.0393
_refine_ls_R_factor_obs          0.0393
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
w=1/[\s^2^(Fo^2^)+(0.0544P)^2^+8.4279P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1011
_refine_ls_wR_factor_gt          0.0939
_refine_ls_wR_factor_obs         0.0939
_refine_ls_wR_factor_ref         0.1011
_reflns_number_gt                5292
_reflns_number_observed          5292
_reflns_number_total             6569
_reflns_observed_criterion       >2sigma(I)
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0439470si20041116_095112_3.cif
_cod_data_source_block           THEP18
_cod_original_cell_volume        2890.0(8)
_cod_original_sg_symbol_H-M      'P 21/a'
_cod_database_code               4111445