Synthesis and properties of fluorene or carbazole-based and dicyanovinyl-capped n-type organic semiconductors
Qi, Ting; Liu, Yunqi; Qiu, Wenfeng; Zhang, Hengjun; Gao, Xike; Liu, Ying; Lu, Kun; Du, Chunyan; Yu, Gui; Zhu, Daoben; Journal of Materials Chemistry 18 (2008) 1131–; doi:10.1039/b715920j

data_7201782
_publ_section_title
;
 Synthesis and properties of fluorene or carbazole-based and
 dicyanovinyl-capped n-type organic semiconductors
;
_journal_issue                   10
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              1131
_journal_paper_doi               10.1039/b715920j
_journal_volume                  18
_journal_year                    2008
_chemical_formula_sum            'C41 H36 N4 S2'
_chemical_formula_weight         648.86
_chemical_name_systematic
;
?
;
_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
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.497(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   33.557(10)
_cell_length_b                   15.363(5)
_cell_length_c                   13.991(5)
_cell_measurement_reflns_used    1601
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      18.84
_cell_measurement_theta_min      2.27
_cell_volume                     7134(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      294(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_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  0.1188
_diffrn_reflns_av_sigmaI/netI    0.1593
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -41
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            20281
_diffrn_reflns_theta_full        26.41
_diffrn_reflns_theta_max         26.41
_diffrn_reflns_theta_min         1.23
_exptl_absorpt_coefficient_mu    0.183
_exptl_absorpt_correction_T_max  0.9783
_exptl_absorpt_correction_T_min  0.9642
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_density_diffrn    1.208
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.326
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.920
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     443
_refine_ls_number_reflns         7253
_refine_ls_number_restraints     40
_refine_ls_restrained_S_all      0.928
_refine_ls_R_factor_all          0.2002
_refine_ls_R_factor_gt           0.0637
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0673P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1265
_refine_ls_wR_factor_ref         0.1711
_reflns_number_gt                2807
_reflns_number_total             7253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b715920j.txt
_cod_data_source_block           70515c
_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.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to
'constr' 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_crystal_density_meas' value 'NONE' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7201782