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

data_1504857
_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         'C24 H8 F10 O2 S2'
_chemical_formula_sum            'C24 H8 F10 O2 S2'
_chemical_formula_weight         582.42
_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                98.625(3)
_cell_angle_beta                 93.623(3)
_cell_angle_gamma                105.298(3)
_cell_formula_units_Z            1
_cell_length_a                   7.1780(5)
_cell_length_b                   7.9513(4)
_cell_length_c                   9.4507(5)
_cell_measurement_reflns_used    3300
_cell_measurement_temperature    90.0(2)
_cell_measurement_theta_max      69.26
_cell_measurement_theta_min      4.76
_cell_volume                     511.40(5)
_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  0.0737
_diffrn_reflns_av_sigmaI/netI    0.0132
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3507
_diffrn_reflns_theta_full        69.55
_diffrn_reflns_theta_max         69.55
_diffrn_reflns_theta_min         4.76
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.459
_exptl_absorpt_correction_T_max  0.934
_exptl_absorpt_correction_T_min  0.661
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Twinabs (BrukerAXS, 2006)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.891
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'twinned blade'
_exptl_crystal_F_000             290
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.752
_refine_diff_density_min         -0.659
_refine_diff_density_rms         0.132
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.131
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     187
_refine_ls_number_reflns         3507
_refine_ls_number_restraints     118
_refine_ls_restrained_S_all      1.118
_refine_ls_R_factor_all          0.0854
_refine_ls_R_factor_gt           0.0770
_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^)+(0.1435P)^2^+1.8803P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2498
_refine_ls_wR_factor_ref         0.2629
_reflns_number_gt                3147
_reflns_number_total             3507
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ol801569m_si_001.cif
_cod_data_source_block           x07101b_1g
_cod_database_code               1504857