Cyclic Tetrathiophenes Planarized by Silicon and Sulfur Bridges Bearing Antiaromatic Cyclooctatetraene Core: Syntheses, Structures, and Properties
Takeshi Ohmae; Tohru Nishinaga; Mo Wu; Masahiko Iyoda; Journal of the American Chemical Society 132 (2010) 1066–1074; doi:10.1021/ja908161r

data_4101807
_publ_section_title
;
 Cyclic Tetrathiophenes Planarized by Silicon and Sulfur Bridges Bearing
 Antiaromatic Cyclooctatetraene Core: Syntheses, Structures, and
 Properties
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1066
_journal_page_last               1074
_journal_paper_doi               10.1021/ja908161r
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C8 H4 S3'
_chemical_formula_sum            'C8 H4 S3'
_chemical_formula_weight         196.29
_chemical_name_common            7
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 97.172(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.037(4)
_cell_length_b                   5.959(2)
_cell_length_c                   15.129(6)
_cell_measurement_reflns_used    1565
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      23.01
_cell_measurement_theta_min      2.50
_cell_volume                     808.3(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0252
_diffrn_reflns_av_sigmaI/netI    0.0277
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       3
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            3180
_diffrn_reflns_theta_full        23.23
_diffrn_reflns_theta_max         23.23
_diffrn_reflns_theta_min         2.50
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.837
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.613
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.216
_refine_diff_density_min         -0.271
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     100
_refine_ls_number_reflns         1156
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0396
_refine_ls_R_factor_gt           0.0336
_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^)+(0.0473P)^2^+0.3161P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0840
_refine_ls_wR_factor_ref         0.0900
_reflns_number_gt                1000
_reflns_number_total             1156
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja908161r_si_006.cif
_cod_data_source_block           7
_cod_original_cell_volume        808.3(5)
_cod_database_code               4101807