Synthesis and Characterization of Facial and Meridional Tris-cyclometalated Iridium(III) Complexes
Arnold B. Tamayo; Bert D. Alleyne; Peter I. Djurovich; Sergey Lamansky; Irina Tsyba; Nam N. Ho; Robert Bau; Mark E. Thompson; Journal of the American Chemical Society 125 (2003) 7377–7387; doi:10.1021/ja034537z

data_4113822
_publ_section_title
;
 Synthesis and Characterization of Facial and Meridional
 Tris-cyclometalated Iridium(III) Complexes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7377
_journal_page_last               7387
_journal_paper_doi               10.1021/ja034537z
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C27 H21 Ir N6'
_chemical_formula_weight         621.70
_chemical_name_systematic
; 
 ? 
;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.607(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.2907(13)
_cell_length_b                   14.8863(11)
_cell_length_c                   10.1503(9)
_cell_measurement_temperature    296(2)
_cell_volume                     2290.1(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.914
_diffrn_measured_fraction_theta_max 0.914
_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  0.0262
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            14086
_diffrn_reflns_theta_full        28.42
_diffrn_reflns_theta_max         28.42
_diffrn_reflns_theta_min         1.34
_exptl_absorpt_coefficient_mu    5.858
_exptl_crystal_density_diffrn    1.803
_exptl_crystal_F_000             1208
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.579
_refine_diff_density_min         -0.544
_refine_diff_density_rms         0.124
_refine_ls_extinction_coef       0.00000(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         5263
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0674
_refine_ls_R_factor_gt           0.0451
_refine_ls_shift/su_max          1.671
_refine_ls_shift/su_mean         0.235
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0435P)^2^+9.7699P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1118
_refine_ls_wR_factor_ref         0.1212
_reflns_number_gt                3581
_reflns_number_total             5263
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja034537zsi20030403_065756.cif
_cod_data_source_block           latem
_cod_database_code               4113822