Bis-Cyclometalated Iridium(III) Complexes Bearing Ancillary Guanidinate Ligands. Synthesis, Structure, and Highly Efficient Electroluminescence
Virendra Kumar Rai; Masayoshi Nishiura; Masanori Takimoto; Shanshan Zhao; Yu Liu; Zhaomin Hou; Inorganic Chemistry 51 (2012) 822–835; doi:10.1021/ic201217a

data_4327958
_publ_section_title
;
 Bis-Cyclometalated Iridium(III) Complexes Bearing Ancillary Guanidinate
 Ligands. Synthesis, Structure, and Highly Efficient Electroluminescence
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              822
_journal_page_last               835
_journal_paper_doi               10.1021/ic201217a
_journal_volume                  51
_journal_year                    2012
_chemical_formula_sum            'C35 H48 Ir N5 Si2'
_chemical_formula_weight         787.16
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 108.205(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.968(4)
_cell_length_b                   32.511(11)
_cell_length_c                   18.857(6)
_cell_measurement_reflns_used    253
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2
_cell_volume                     6970(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1132
_diffrn_reflns_av_sigmaI/netI    0.1355
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       38
_diffrn_reflns_limit_k_min       -38
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            36223
_diffrn_reflns_theta_full        25.09
_diffrn_reflns_theta_max         25.09
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    3.931
_exptl_absorpt_correction_T_max  0.6946
_exptl_absorpt_correction_T_min  0.2439
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.500
_exptl_crystal_description       plate
_exptl_crystal_F_000             3184
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.999
_refine_diff_density_min         -3.498
_refine_diff_density_rms         0.214
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     763
_refine_ls_number_reflns         12330
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.1351
_refine_ls_R_factor_gt           0.0869
_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^)+(0.0947P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1816
_refine_ls_wR_factor_ref         0.1989
_reflns_number_gt                7704
_reflns_number_total             12330
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic201217a_si_002_11.cif
_cod_data_source_block           11
_cod_database_code               4327958