5-(4,5-Ethylenedithio-1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalen-2-one (EDTO–TTP) and 5-[4,5-(ethene-1,2-diyldithio)-1,3-dithiol-2-ylidene]-1,3,4,6-tetrathiapentalen-2-one (VDTO–TTP)
Chen, Hong-Feng; Fang, Qi; Yu, Wen-Tao; Batsanov, Andrei S.; Howard, Judith A. K.; Acta Crystallographica Section C 65 (2009) o198–o201; doi:10.1107/S0108270109011470

data_2017121
_publ_section_title
;5-(4,5-Ethylenedithio-1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalen-2-one
 (EDTO--TTP) and
 5-[4,5-(ethene-1,2-diyldithio)-1,3-dithiol-2-ylidene]-1,3,4,6-tetrathiapentalen-2-one
 (VDTO--TTP)
;
_journal_coeditor_code           SK3310
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o198
_journal_page_last               o201
_journal_paper_doi               10.1107/S0108270109011470
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C9 H4 O S8'
_chemical_formula_moiety         'C9 H4 O S8'
_chemical_formula_sum            'C9 H4 O S8'
_chemical_formula_weight         384.60
_chemical_name_systematic
;
5-(4,5-Ethylenedithio-1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalen-2-one
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.5480(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.4948(4)
_cell_length_b                   28.7194(16)
_cell_length_c                   7.1503(4)
_cell_measurement_reflns_used    4976
_cell_measurement_temperature    220(2)
_cell_measurement_theta_max      27.10
_cell_measurement_theta_min      2.84
_cell_volume                     1315.25(13)
_computing_cell_refinement       'SAINT (Version 7.46A; Bruker, 2007)'
_computing_data_collection       'SMART (Version 5.049; Bruker, 1998)'
_computing_data_reduction        'SAINT (Version 7.46A; Bruker, 2007)'
_computing_molecular_graphics    'SHELXTL (Version 6.14; Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Version 6.14; Sheldrick, 2008)'
_computing_structure_refinement  'SHELXTL (Version 6.14; Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Version 6.14; Sheldrick, 2008)'
_diffrn_ambient_temperature      220(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.968
_diffrn_measured_fraction_theta_max 0.912
_diffrn_measurement_device_type  'Siemens SMART 1K CCD area-detector'
_diffrn_measurement_method       '\W 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  0.0322
_diffrn_reflns_av_sigmaI/netI    0.0293
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            11099
_diffrn_reflns_theta_full        26.50
_diffrn_reflns_theta_max         27.19
_diffrn_reflns_theta_min         2.84
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.336
_exptl_absorpt_correction_T_max  0.9738
_exptl_absorpt_correction_T_min  0.7486
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'(SADABS 2006/1; Bruker, 2005), R(int)=0.047 before correction'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.944
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.537
_refine_diff_density_min         -0.323
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     179
_refine_ls_number_reflns         2682
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0431
_refine_ls_R_factor_gt           0.0289
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0194P)^2^+0.9207P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0593
_refine_ls_wR_factor_ref         0.0643
_reflns_number_gt                2107
_reflns_number_total             2682
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            sk3310.cif
_cod_data_source_block           I
_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_enum 1527 2010-12-29 10:47:43Z saulius 

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 
;
_cod_original_sg_symbol_Hall     '-P 2yn '
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2017121
_cod_database_fobs_code          2017121