Alkynyl Fischer carbene complex as a traceless directing group for the regioselective cycloaddition of dithiolethiones to arylacetylene: synthesis of E-dithiafulvene thione and dithioesters.
Granados, Alejandro M; Fracaroli, Alejandro M; de Rossi, Rita H; Fuertes, Pedro; Torroba, Tomás; Chemical communications (Cambridge, England)  (2008) 483–485; doi:10.1039/b715857b

data_7102847
_publ_section_title
;
 Alkynyl Fischer carbene complex as a traceless directing group for the
 regioselective cycloaddition of dithiolethiones to arylacetylene:
 synthesis of E-dithiafulvene thione and dithioesters.
;
_journal_issue                   4
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              483
_journal_page_last               485
_journal_paper_doi               10.1039/b715857b
_journal_year                    2008
_chemical_formula_moiety         'C16 H16 S4'
_chemical_formula_sum            'C16 H16 S4'
_chemical_formula_weight         336.53
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 98.52(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.354(6)
_cell_length_b                   11.400(3)
_cell_length_c                   8.9237(17)
_cell_measurement_reflns_used    3086
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.64
_cell_measurement_theta_min      2.23
_cell_volume                     1544.8(8)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       '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  0.0518
_diffrn_reflns_av_sigmaI/netI    0.0406
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            14425
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.23
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.601
_exptl_absorpt_correction_T_max  0.990
_exptl_absorpt_correction_T_min  0.842
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2001)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.447
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.281
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.096
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2717
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.096
_refine_ls_R_factor_all          0.0466
_refine_ls_R_factor_gt           0.0372
_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^)+(0.0398P)^2^+0.2986P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0862
_refine_ls_wR_factor_ref         0.0896
_reflns_number_gt                2280
_reflns_number_total             2717
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b715857b.txt
_cod_data_source_block           3
_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 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7102847