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_7102846
_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         'C23 H18 Cr O6 S4'
_chemical_formula_sum            'C23 H18 Cr O6 S4'
_chemical_formula_weight         570.61
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
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_symmetry_space_group_name_Hall  '-P 1'
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_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                100.190(8)
_cell_angle_beta                 90.645(7)
_cell_angle_gamma                97.238(8)
_cell_formula_units_Z            2
_cell_length_a                   6.668(3)
_cell_length_b                   9.884(3)
_cell_length_c                   19.498(7)
_cell_measurement_reflns_used    467
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      14.53
_cell_measurement_theta_min      2.19
_cell_volume                     1254.0(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 0.991
_diffrn_measured_fraction_theta_max 0.991
_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  0.1389
_diffrn_reflns_av_sigmaI/netI    0.1887
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            12132
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.53
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.826
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.868
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2001)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.511
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.471
_refine_diff_density_min         -0.472
_refine_diff_density_rms         0.117
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         4368
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.968
_refine_ls_R_factor_all          0.1575
_refine_ls_R_factor_gt           0.0798
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0442P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1382
_refine_ls_wR_factor_ref         0.1650
_reflns_number_gt                2358
_reflns_number_total             4368
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b715857b.txt
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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      P-1
_cod_database_code               7102846