Wide-Energy-Gap Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes
Ye, Shanghui; Liu, Yunqi; Di, Chong-an; Xi, Hongxia; Wu, Weiping; Wen, Yugen; Lu, Kun; Du, Chunyan; Liu, Ying; Yu, Gui; Chemistry of Materials 21 (2009) 1333–; doi:10.1021/cm8032302

data_4001000
_publ_section_title
;
 Wide-Energy-Gap Host Materials for Blue Phosphorescent Organic
 Light-Emitting Diodes
;
_journal_issue                   7
_journal_name_full               'Chemistry of Materials'
_journal_page_first              1333
_journal_paper_doi               10.1021/cm8032302
_journal_volume                  21
_journal_year                    2009
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C51 H38'
_chemical_formula_sum            'C51 H38'
_chemical_formula_weight         650.81
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           36
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2c -2'
_symmetry_space_group_name_H-M   'C m c 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.474(2)
_cell_length_b                   10.6415(10)
_cell_length_c                   14.7196(14)
_cell_measurement_reflns_used    6157
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      28.7
_cell_measurement_theta_min      1.8
_cell_volume                     3520.3(6)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0383
_diffrn_reflns_av_sigmaI/netI    0.0417
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            21387
_diffrn_reflns_theta_full        27.85
_diffrn_reflns_theta_max         27.85
_diffrn_reflns_theta_min         1.81
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  0.9863
_exptl_absorpt_correction_T_min  0.9782
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.228
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.147
_refine_diff_density_min         -0.143
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'None, Friedel Pairs merged'
_refine_ls_extinction_coef       0.0130(14)
_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   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         2220
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0375
_refine_ls_R_factor_gt           0.0356
_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^)+(0.0518P)^2^+0.8840P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0841
_refine_ls_wR_factor_ref         0.0854
_reflns_number_gt                2149
_reflns_number_total             2220
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm8032302_si_002.cif
_cod_data_source_block           shelxl
_cod_database_code               4001000