Contorted tetrabenzoacenes of varied conjugation: charge transport study with single-crystal field-effect transistors
Huang, Ding-Chi; Kuo, Chi-Hsien; Ho, Man-Tzu; Lin, Bo-Chao; Peng, Wei-Tao; Chao, Ito; Hsu, Chao-Ping; Tao, Yu-Tai; Journal of Materials Chemistry C 5 (2017) 7935–; doi:10.1039/C7TC02254A

data_7236825
_publ_section_title
;
 Contorted tetrabenzoacenes of varied conjugation: charge transport study
 with single-crystal field-effect transistors
;
_journal_issue                   31
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              7935
_journal_paper_doi               10.1039/C7TC02254A
_journal_volume                  5
_journal_year                    2017
_chemical_formula_moiety         'C38 H20'
_chemical_formula_sum            'C38 H20'
_chemical_formula_weight         476.54
_chemical_name_systematic        TBH
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-05-23 deposited with the CCDC.
2017-07-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.8657(14)
_cell_length_b                   7.6482(4)
_cell_length_c                   31.436(2)
_cell_measurement_reflns_used    1261
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      19.96
_cell_measurement_theta_min      2.95
_cell_volume                     4535.9(5)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX2'
_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  0.1071
_diffrn_reflns_av_sigmaI/netI    0.0952
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            21688
_diffrn_reflns_theta_full        25.09
_diffrn_reflns_theta_max         25.09
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9968
_exptl_absorpt_correction_T_min  0.9660
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.396
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1984
_exptl_crystal_recrystallization_method 'Vapour deposition'
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.224
_refine_diff_density_min         -0.225
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.975
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4000
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.975
_refine_ls_R_factor_all          0.1293
_refine_ls_R_factor_gt           0.0554
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0929P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1369
_refine_ls_wR_factor_ref         0.1865
_reflns_number_gt                2076
_reflns_number_total             4000
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7tc02254a2.cif
_cod_data_source_block           15167
_cod_original_cell_volume        4535.8(5)
_cod_database_code               7236825