Synthesis and electropolymerisation of 3',4'-bis(alkylsulfanyl)terthiophenes and the significance of the fused dithiin ring in 2,5-dithienyl-3,4-ethylenedithiothiophene (DT-EDTT)
Pozo-Gonzalo, Cristina; Khan, Tahir; McDouall, Joseph J. W.; Skabara, Peter J.; Roberts, Donna M.; Light, Mark E.; Coles, Simon J.; Hursthouse, Michael B.; Neugebauer, Helmut; Cravino, Antonio; Sariciftci, N. Serdar; Journal of Materials Chemistry 12 (2002) 500–; doi:10.1039/b109017h

data_7204273
_publ_section_title
;
 Synthesis and electropolymerisation of
 3',4'-bis(alkylsulfanyl)terthiophenes and the significance of the
 fused dithiin ring in 2,5-dithienyl-3,4-ethylenedithiothiophene
 (DT-EDTT)
;
_journal_issue                   3
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              500
_journal_paper_doi               10.1039/b109017h
_journal_volume                  12
_journal_year                    2002
_chemical_formula_sum            'C15 H12 S5'
_chemical_formula_weight         352.55
_chemical_name_systematic
;
?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.721(3)
_cell_length_b                   8.8601(18)
_cell_length_c                   21.597(4)
_cell_measurement_reflns_used    33669
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     3008.2(10)
_computing_cell_refinement       'DENZO, COLLECT'
_computing_data_reduction        'DENZO, COLLECT'
_computing_molecular_graphics    'CAMERON (Watkin, Pearce 1995)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Nonius KappaCCD Area Detector'
_diffrn_measurement_method       '\\f and \\w scans to fill Ewald Sphere'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0400
_diffrn_reflns_av_sigmaI/netI    0.0456
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            14827
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.21
_exptl_absorpt_coefficient_mu    0.755
_exptl_absorpt_correction_T_max  0.8336
_exptl_absorpt_correction_T_min  0.8051
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.557
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.394
_refine_diff_density_min         -0.399
_refine_diff_density_rms         0.066
_refine_ls_extinction_coef       0.0011(4)
_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   1.022
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         3385
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0508
_refine_ls_R_factor_gt           0.0337
_refine_ls_shift/su_max          0.340
_refine_ls_shift/su_mean         0.034
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0387P)^2^+1.3629P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0768
_refine_ls_wR_factor_ref         0.0854
_reflns_number_gt                2642
_reflns_number_total             3385
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b109017h.txt
_cod_data_source_block           s92_b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' tag value 'multi-scans' was replaced
with 'multi-scan' value.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7204273