Modulating reactivity in iridium bis(N-heterocyclic carbene) complexes: influence of ring size on E-H bond activation chemistry.
Phillips, Nicholas; Tang, Christina Y.; Tirfoin, Rémi; Kelly, Michael J.; Thompson, Amber L.; Gutmann, Matthias J.; Aldridge, Simon; Dalton transactions (Cambridge, England : 2003) 43 (2014) 12288–12298; doi:10.1039/c4dt01398k

data_7031444
_publ_section_title
;
 Modulating reactivity in iridium bis(N-heterocyclic carbene) complexes:
 influence of ring size on E-H bond activation chemistry.
;
_journal_issue                   32
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12288
_journal_page_last               12298
_journal_paper_doi               10.1039/c4dt01398k
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C54 H76 Cl1 Ir1 N4 O1'
_chemical_formula_sum            'C54 H76 Cl Ir N4 O'
_chemical_formula_weight         1024.90
_chemical_melting_point          ?
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_audit_creation_date             14-05-02
_audit_creation_method           CRYSTALS_ver_14.40
_cell_angle_alpha                90
_cell_angle_beta                 96.00
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.3193(2)
_cell_length_b                   18.8464(2)
_cell_length_c                   15.1207(1)
_cell_measurement_reflns_used    11413
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     4908.46(8)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 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 0.993
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.050
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            69693
_diffrn_reflns_theta_full        26.917
_diffrn_reflns_theta_max         27.466
_diffrn_reflns_theta_min         5.098
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.816
_exptl_absorpt_correction_T_max  0.67
_exptl_absorpt_correction_T_min  0.60
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.387
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2120
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.140
_refine_diff_density_max         3.01
_refine_diff_density_min         -1.54
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9719
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     550
_refine_ls_number_reflns         11166
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0659
_refine_ls_R_factor_gt           0.0356
_refine_ls_shift/su_max          0.0008328
_refine_ls_shift/su_mean         0.0000189
_refine_ls_structure_factor_coef Fsqd
_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: 
 2.86 2.56 0.630 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0745
_refine_ls_wR_factor_gt          0.0566
_refine_ls_wR_factor_ref         0.0745
_reflns_limit_h_max              22
_reflns_limit_h_min              0
_reflns_limit_k_max              0
_reflns_limit_k_min              -24
_reflns_limit_l_max              19
_reflns_limit_l_min              -19
_reflns_number_gt                8087
_reflns_number_total             11168
_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   0.0659
_oxford_refine_ls_scale          0.077498(8)
_oxford_reflns_number_all        11167
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_oxford_structure_analysis_title 004npir11
_cod_data_source_file            c4dt01398k1.cif
_cod_data_source_block           2.OEt2
_cod_depositor_comments
;
The following automatic conversions were performed:

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

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7031443--7031451.cif.

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_cell_volume        4908.44(8)
_cod_original_sg_symbol_Hall     '-P 2ybc '
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_original_formula_sum        'C54 H76 Cl1 Ir1 N4 O1'
_cod_database_code               7031444