Making benzotrithiophene a stronger electron donor.
Guo, Xin; Wang, Suhao; Enkelmann, Volker; Baumgarten, Martin; Müllen, Klaus; Organic letters 13 (2011) 6062–6065; doi:10.1021/ol2025372

data_1502574
_publ_section_title
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 Making benzotrithiophene a stronger electron donor.
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_journal_issue                   22
_journal_name_full               'Organic letters'
_journal_page_first              6062
_journal_page_last               6065
_journal_paper_doi               10.1021/ol2025372
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C24 H30 S3'
_chemical_formula_sum            'C24 H30 S3'
_chemical_formula_weight         414.70
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             10-02-17
_audit_creation_method           CRYSTALS_ver_12.84
_cell_angle_alpha                90
_cell_angle_beta                 117.120(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.2751(4)
_cell_length_b                   11.0342(6)
_cell_length_c                   14.3941(9)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    120
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     2159.4(2)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997-2001).'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SHELXS 86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      120
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.079
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            12447
_diffrn_reflns_theta_full        29.539
_diffrn_reflns_theta_max         29.539
_diffrn_reflns_theta_min         2.997
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.350
_exptl_absorpt_correction_T_max  0.92
_exptl_absorpt_correction_T_min  0.79
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing)'
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.276
_exptl_crystal_description       prism
_exptl_crystal_F_000             888
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.49
_refine_diff_density_min         -0.45
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0233
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     123
_refine_ls_number_reflns         2225
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0929
_refine_ls_R_factor_gt           0.0771
_refine_ls_shift/su_max          0.008910
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;

 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 

 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 

 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 

 Method = Robust Weighting (Prince, 1982) 

 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 

 A~i~ are: 

 2.77 0.781 1.97 

;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0887
_refine_ls_wR_factor_gt          0.0859
_refine_ls_wR_factor_ref         0.0859
_reflns_limit_h_max              18
_reflns_limit_h_min              -21
_reflns_limit_k_max              15
_reflns_limit_k_min              0
_reflns_limit_l_max              19
_reflns_limit_l_min              0
_reflns_number_gt                2225
_reflns_number_total             3012
_reflns_threshold_expression     I>3.0\s(I)
_cod_data_source_file            ol2025372_si_002.cif
_cod_data_source_block           guo4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_sg_symbol_H-M      'C 1 2/c 1 '
_cod_database_code               1502574