Unusual Dinuclear and Mononuclear Cyclometalated Iridium Complexes of 2,5-Diaryl-1,3,4-oxadiazole Derivatives
Yonghao Zheng; Andrei S. Batsanov; Martin R. Bryce; Inorganic Chemistry 50 (2011) 3354–3362; doi:10.1021/ic102153x

data_4324847
_publ_contact_author             'Andrei S.Batsanov'
_publ_contact_author_email       a.s.batsanov@durham.ac.uk
_publ_section_title
;
 Unusual Dinuclear and Mononuclear Cyclometalated Iridium Complexes of
 2,5-Diaryl-1,3,4-oxadiazole Derivatives
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3354
_journal_page_last               3362
_journal_paper_doi               10.1021/ic102153x
_journal_volume                  50
_journal_year                    2011
_chemical_formula_moiety         'C96 H116 Cl2 Ir2 N8 O8'
_chemical_formula_sum            'C96 H116 Cl2 Ir2 N8 O8'
_chemical_formula_weight         1965.27
_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     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                86.780(7)
_cell_angle_beta                 82.395(7)
_cell_angle_gamma                70.489(6)
_cell_formula_units_Z            2
_cell_length_a                   13.5500(13)
_cell_length_b                   14.5450(14)
_cell_length_c                   23.775(2)
_cell_measurement_reflns_used    9311
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      29.96
_cell_measurement_theta_min      2.34
_cell_volume                     4377.4(7)
_computing_cell_refinement       'SAINT v6.45A (Bruker, 2003)'
_computing_data_collection       'SMART v5.049 (Bruker, 1999)'
_computing_data_reduction        'SAINT v6.45A (Bruker, 2003)'
_computing_molecular_graphics
;
OLEX2: a complete structure solution, refinement and analysis program. 
Dolomanov et al., J. Appl. Cryst. (2009). 42, 339-341
;
_computing_publication_material
;
OLEX2: a complete structure solution, refinement and analysis program. 
Dolomanov et al., J. Appl. Cryst. (2009). 42, 339-341
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution
;
A short history of SHELX (Sheldrick, 2008)/Bruker
;
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 8.0
_diffrn_measured_fraction_theta_full 0.946
_diffrn_measured_fraction_theta_max 0.946
_diffrn_measurement_device_type  'Siemens SMART 1000 CCD area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  Parallel,graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0366
_diffrn_reflns_av_sigmaI/netI    0.0540
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            51881
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         1.49
_diffrn_source_current           35.0
_diffrn_source_power             1.75
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.159
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.3391
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS-2006/1 (Bruker,2006) was used for absorption correction.
 R(int) was 0.0474 before and 0.0329 after correction.
 The Ratio of minimum to maximum transmission is 0.4548.
 The \l/2 correction factor is 0.0015
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.491
_exptl_crystal_description       wedge
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         3.448
_refine_diff_density_min         -2.346
_refine_diff_density_rms         0.145
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1114
_refine_ls_number_reflns         24151
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0637
_refine_ls_R_factor_gt           0.0428
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
calc w=1/[\s^2^(Fo^2^)+(0.0353P)^2^+9.4877P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0959
_refine_ls_wR_factor_ref         0.1051
_reflns_number_gt                18094
_reflns_number_total             24151
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ic102153x_si_002_4.cif
_cod_data_source_block           14
_cod_original_cell_volume        4377.3(7)
_cod_database_code               4324847