Synthesis, Properties, Crystal Structures, and Semiconductor Characteristics of Naphtho[1,2-b:5,6-b']dithiophene and -diselenophene Derivatives
Shoji Shinamura; Eigo Miyazaki; Kazuo Takimiya; Journal of Organic Chemistry 75 (2010) 1228–1234; doi:10.1021/jo902545a

data_4025240
_publ_section_title
;
 Synthesis, Properties, Crystal Structures, and Semiconductor
 Characteristics of Naphtho[1,2-b:5,6-b']dithiophene and -diselenophene
 Derivatives
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1228
_journal_page_last               1234
_journal_paper_doi               10.1021/jo902545a
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C14 H8 S2'
_chemical_formula_sum            'C14 H8 S2'
_chemical_formula_weight         240.32
_chemical_name_common            NDT
_chemical_name_systematic
; 
 NDT 
;
_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                 93.482(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.973(5)
_cell_length_b                   7.4851(18)
_cell_length_c                   8.244(2)
_cell_measurement_reflns_used    2589
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.3
_cell_volume                     1107.0(5)
_computing_cell_refinement       CRYSTALCLEAR
_computing_data_collection       CRYSTALCLEAR
_computing_data_reduction        'teXsan Ver. 1.11'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 14.71
_diffrn_measured_fraction_theta_full 0.944
_diffrn_measured_fraction_theta_max 0.944
_diffrn_measurement_device_type  'Rigaku/MSC Mercury CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0758
_diffrn_reflns_av_sigmaI/netI    0.0734
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            7728
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.54
_exptl_absorpt_coefficient_mu    0.444
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.442
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Platelet
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.678
_refine_diff_density_min         -0.499
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.940
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     145
_refine_ls_number_reflns         2401
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.940
_refine_ls_R_factor_all          0.1162
_refine_ls_R_factor_gt           0.0932
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2520
_refine_ls_wR_factor_ref         0.2846
_reflns_number_gt                1346
_reflns_number_total             2401
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo902545a_si_001_1.cif
_cod_data_source_block           NDT
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4025240