Incorporation of pyrrole to oligothiophene-based quinoids endcapped with dicyanomethylene: a new class of solution processable n-channel organic semiconductors for air-stable organic field-effect transistors
Qiao, Yali; Zhang, Jing; Xu, Wei; Zhu, Daoben; Journal of Materials Chemistry 22 (2012) 5706–; doi:10.1039/c2jm16700j

data_7207509
_publ_section_title
;
 Incorporation of pyrrole to oligothiophene-based quinoids endcapped with
 dicyanomethylene: a new class of solution processable n-channel organic
 semiconductors for air-stable organic field-effect transistors
;
_journal_issue                   12
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              5706
_journal_paper_doi               10.1039/c2jm16700j
_journal_volume                  22
_journal_year                    2012
_chemical_formula_moiety         'C26 H23 N5 S2'
_chemical_formula_sum            'C26 H23 N5 S2'
_chemical_formula_weight         469.61
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                91.16(3)
_cell_angle_beta                 105.66(3)
_cell_angle_gamma                114.76(3)
_cell_formula_units_Z            2
_cell_length_a                   10.463(2)
_cell_length_b                   11.737(2)
_cell_length_c                   12.856(3)
_cell_measurement_reflns_used    4901
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.4816
_cell_measurement_theta_min      2.2298
_cell_volume                     1364.3(7)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics
;
Mercury: visualization and analysis of crystal structures, C. F. Macrae,
P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor,
M. Towler and J. van de Streek, J. Appl. Cryst., 39, 453-457, 2006.
;
_computing_publication_material  'SHELX-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'MM007HF + CCD (Saturn724+)'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0447
_diffrn_reflns_av_sigmaI/netI    0.0473
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            15139
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.216
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7016
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.143
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             492
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.24
_platon_squeeze_details
;
;
_refine_diff_density_max         1.523
_refine_diff_density_min         -0.480
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     298
_refine_ls_number_reflns         6219
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0736
_refine_ls_R_factor_gt           0.0676
_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^)+(0.1024P)^2^+1.2452P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1911
_refine_ls_wR_factor_ref         0.1971
_reflns_number_gt                5586
_reflns_number_total             6219
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2jm16700j.txt
_cod_data_source_block           a
_cod_original_cell_volume        1364.3(5)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7207509