New Insight into the Reaction of Singlet Oxygen with Sulfur-Containing Cyclic Alkenes: Dye-Sensitized Photooxygenation of 5,6-Dihydro-1,4-dithiins
Flavio Cermola; Annalisa Guaragna; Maria Rosaria Iesce; Giovanni Palumbo; Raffaella Purcaro; Maria Rubino; Angela Tuzi; Journal of Organic Chemistry 72 (2007) 10075–10080; doi:10.1021/jo701983v

data_4023134
_publ_section_title
;
 New Insight into the Reaction of Singlet Oxygen with
 Sulfur-Containing Cyclic Alkenes: Dye-Sensitized Photooxygenation of
 5,6-Dihydro-1,4-dithiins
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              10075
_journal_page_last               10080
_journal_paper_doi               10.1021/jo701983v
_journal_volume                  72
_journal_year                    2007
_chemical_formula_moiety         'C12 H13 N O3 S2'
_chemical_formula_sum            'C12 H13 N O3 S2'
_chemical_formula_weight         283.35
_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                 119.725(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.051(6)
_cell_length_b                   23.735(2)
_cell_length_c                   10.436(3)
_cell_measurement_reflns_used    115
_cell_measurement_temperature    566(2)
_cell_measurement_theta_max      21.165
_cell_measurement_theta_min      4.782
_cell_volume                     1301.6(13)
_computing_cell_refinement       'Dirax/lsq (Duisenberg et al., 2000)'
_computing_data_collection       'Collect (Nonius B.V, 1999)'
_computing_data_reduction        'EvalCCD (Duisenberg et al., 2003)'
_computing_molecular_graphics
;
Ortep-3 for Windows (Farrugia, 1997)
;
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      25(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_detector_type
;
Bruker-Nonius 95mm CCD camera on \k-goniostat
;
_diffrn_measured_fraction_theta_full 0.971
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD'
_diffrn_measurement_method
'CCD rotation images, thick slices phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0471
_diffrn_reflns_av_sigmaI/netI    0.0640
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8645
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.42
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.408
_exptl_absorpt_correction_T_max  0.8221
_exptl_absorpt_correction_T_min  0.7919
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS (Bruker-Nonius, 2002).
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.446
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             592
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.60
_exptl_crystal_size_min          0.50
_refine_diff_density_max         0.253
_refine_diff_density_min         -0.291
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         2898
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0838
_refine_ls_R_factor_gt           0.0445
_refine_ls_shift/su_max          0.033
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0394P)^2^+0.4796P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0888
_refine_ls_wR_factor_ref         0.0998
_reflns_number_gt                1980
_reflns_number_total             2898
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo701983v-File003.cif
_cod_data_source_block           trans-6c
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4023134