Organic field-effect transistors based on heterocyclic co-oligomers containing a pyrazine ring.
Kojima, Takahiro; Nishida, Jun-Ichi; Tokito, Shizuo; Tada, Hirokazu; Yamashita, Yoshiro; Chemical communications (Cambridge, England)  (2007) 1430–1432; doi:10.1039/b617573b

data_7101825
_publ_section_title
;
 Organic field-effect transistors based on heterocyclic co-oligomers
 containing a pyrazine ring.
;
_journal_issue                   14
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1430
_journal_page_last               1432
_journal_paper_doi               10.1039/b617573b
_journal_year                    2007
_chemical_formula_sum            'C26 H14 F6 N2 S2'
_chemical_formula_weight         532.52
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                99.68(5)
_cell_angle_beta                 89.06(5)
_cell_angle_gamma                105.91(4)
_cell_formula_units_Z            2
_cell_length_a                   6.176(6)
_cell_length_b                   9.17(1)
_cell_length_c                   20.01(3)
_cell_measurement_reflns_used    9058
_cell_measurement_temperature    93.2
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.1
_cell_volume                     1074(7)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        'teXsan Ver. 1.11'
_computing_publication_material  'teXsan Ver. 1.11'
_computing_structure_refinement  'teXsan Ver. 1.10'
_computing_structure_solution    SIR97
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.9504
_diffrn_measured_fraction_theta_max 0.9504
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID Imaging Plate'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.019
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            9653
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_exptl_absorpt_coefficient_mu    0.320
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.761
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Higashi, 1995)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.646
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_size_max          0.700
_exptl_crystal_size_mid          0.600
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.56
_refine_diff_density_min         -0.31
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.311
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     325
_refine_ls_number_reflns         4641
_refine_ls_R_factor_gt           0.0444
_refine_ls_shift/su_max          0.0006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^) + (0.08000(Max(Fo^2^,0) + 2Fc^2^)/3)^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1478
_reflns_number_gt                3918
_reflns_number_total             4641
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            b617573b.txt
_cod_data_source_block           3
_cod_original_sg_symbol_H-M      'P -1 '
_cod_original_formula_sum        'C26 H14 F6 N2 S2 '
_cod_database_code               7101825