Sterically Encumbered Iridium Bis(N-heterocyclic carbene) Systems: Multiple C−H Activation Processes and Isomeric Normal/Abnormal Carbene Complexes
Tang, Christina Y.; Smith, William; Vidovic, Dragoslav; Thompson, Amber L.; Chaplin, Adrian B.; Aldridge, Simon; Organometallics 28 (2009) 3059–; doi:10.1021/om9000082

data_4069074
_publ_section_title
;
 Sterically Encumbered Iridium Bis(N-heterocyclic carbene) Systems:
 Multiple C&#x2212;H Activation Processes and Isomeric Normal/Abnormal
 Carbene Complexes
;
_journal_issue                   10
_journal_name_full               Organometallics
_journal_page_first              3059
_journal_paper_doi               10.1021/om9000082
_journal_volume                  28
_journal_year                    2009
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C54 H74 Cl Ir N4, C4 H10 O'
_chemical_formula_sum            'C58 H84 Cl Ir N4 O'
_chemical_formula_weight         1081.00
_chemical_melting_point          ?
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             08-05-13
_audit_creation_method           CRYSTALS_ver_12.85
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.89450(10)
_cell_length_b                   20.4003(2)
_cell_length_c                   21.2730(2)
_cell_measurement_reflns_used    177065
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     5595.90(9)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997-2001).'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device       'Nonius KappaCCD'
_diffrn_measurement_device_type  Area
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.078
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            92219
_diffrn_reflns_theta_full        26.943
_diffrn_reflns_theta_max         27.492
_diffrn_reflns_theta_min         5.116
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.474
_exptl_absorpt_correction_T_max  0.88
_exptl_absorpt_correction_T_min  0.72
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            clear_intense_purple
_exptl_crystal_density_diffrn    1.283
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2248
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         8.76
_refine_diff_density_min         -2.33
_refine_ls_abs_structure_details 'Flack (1983), 0 Friedel-pairs'
_refine_ls_abs_structure_Flack   0.022(9)
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.1832
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     597
_refine_ls_number_reflns         11024
_refine_ls_number_restraints     15
_refine_ls_R_factor_all          0.0553
_refine_ls_R_factor_gt           0.0488
_refine_ls_shift/su_max          0.002721
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 0.773 0.812 0.465 0.854E-01 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0661
_refine_ls_wR_factor_gt          0.0558
_refine_ls_wR_factor_ref         0.0542
_reflns_limit_h_max              16
_reflns_limit_h_min              -16
_reflns_limit_k_max              26
_reflns_limit_k_min              0
_reflns_limit_l_max              27
_reflns_limit_l_min              0
_reflns_number_gt                11556
_reflns_number_total             12749
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   0.00
_oxford_diffrn_Wilson_scale      0.00
_oxford_refine_ls_r_factor_ref   0.0471
_oxford_refine_ls_scale          0.11377(16)
_oxford_reflns_number_all        12749
_oxford_reflns_threshold_expression_ref I>3.0\s(I)
_oxford_structure_analysis_title 5613
_cod_data_source_file            om9000082_si_001.cif
_cod_data_source_block           4
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

'_symmetry_cell_setting' value
'Orthorhombic' changed to 'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_original_formula_sum        'C58 H84 Cl1 Ir1 N4 O1'
_cod_database_code               4069074