Benzodichalcogenophenes with perfluoroarene termini.
Wang, Yongfeng; Parkin, Sean R.; Watson, Mark D.; Organic letters 10 (2008) 4421–4424; doi:10.1021/ol801569m

data_1504858
_publ_section_title
;
 Benzodichalcogenophenes with perfluoroarene termini.
;
_journal_issue                   20
_journal_name_full               'Organic letters'
_journal_page_first              4421
_journal_page_last               4424
_journal_paper_doi               10.1021/ol801569m
_journal_volume                  10
_journal_year                    2008
_chemical_formula_moiety         'C26 H8 F14 O2 S2'
_chemical_formula_sum            'C26 H8 F14 O2 S2'
_chemical_formula_weight         682.46
_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                61.515(2)
_cell_angle_beta                 88.052(3)
_cell_angle_gamma                82.590(3)
_cell_formula_units_Z            1
_cell_length_a                   5.0006(4)
_cell_length_b                   11.5240(8)
_cell_length_c                   11.8344(8)
_cell_measurement_reflns_used    6459
_cell_measurement_temperature    90.0(2)
_cell_measurement_theta_max      69.46
_cell_measurement_theta_min      4.25
_cell_volume                     594.12(8)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker-AXS, 2006)'
_computing_data_reduction        APEX2
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 2008)'
_computing_publication_material
; 
SHELX97-2 (Sheldrick, 2008) and local procedures 
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90.0(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Bruker X8 Proteum diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'graded multilayer optics'
_diffrn_radiation_source         'fine-focus rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0418
_diffrn_reflns_av_sigmaI/netI    0.0322
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8648
_diffrn_reflns_theta_full        69.45
_diffrn_reflns_theta_max         69.45
_diffrn_reflns_theta_min         4.25
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.343
_exptl_absorpt_correction_T_max  0.936
_exptl_absorpt_correction_T_min  0.566
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs in APEX2 (BrukerAXS, 2006)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.907
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             338
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.306
_refine_diff_density_min         -0.304
_refine_diff_density_rms         0.057
_refine_ls_extinction_coef       0.0040(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     249
_refine_ls_number_reflns         2181
_refine_ls_number_restraints     149
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0464
_refine_ls_R_factor_gt           0.0407
_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^)+(0.0524P)^2^+0.4223P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1048
_refine_ls_wR_factor_ref         0.1133
_reflns_number_gt                1948
_reflns_number_total             2181
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ol801569m_si_001.cif
_cod_data_source_block           x07106_1h
_cod_database_code               1504858