# Electronic Supplementary Material (ESI) for Chemical Science
# This journal is © The Royal Society of Chemistry 2011


data_global

_journal_coden_Cambridge         1475
_journal_volume                  ?
_journal_page_first              ?
_journal_year                    ?

loop_
_publ_author_name
'Scheidt, Karl'
'Atienza, Roxanne'
'Roth, Howard'

_publ_contact_author_name        'Dr Karl Scheidt'
_publ_contact_author_email       scheidt@northwestern.edu

_publ_section_title              
;
N-Heterocyclic Carbene-Catalyzed
Rearrangements of Vinyl Sulfones
;

# Attachment '- RAStructure1.cif'

data_raabs
_database_code_depnum_ccdc_archive 'CCDC 819220'
#TrackingRef '- RAStructure1.cif'

_symmetry_space_group_name_hall  'P 2yb'
#Added by publCIF

_audit_update_record             
;
2011-03-28 # Formatted by publCIF
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
;
?
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C27 H22 Cl N O5 S2'
_chemical_formula_weight         540.03

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Cl Cl 0.1484 0.1585 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 21'

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z'

_cell_length_a                   11.2346(2)
_cell_length_b                   7.9046(2)
_cell_length_c                   14.0597(3)
_cell_angle_alpha                90.00
_cell_angle_beta                 94.8920(10)
_cell_angle_gamma                90.00
_cell_volume                     1244.02(5)
_cell_formula_units_Z            2
_cell_measurement_temperature    100(2)
_cell_measurement_reflns_used    ?
_cell_measurement_theta_min      ?
_cell_measurement_theta_max      ?

_exptl_crystal_description       ?
_exptl_crystal_colour            ?
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.05
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.442
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             560
_exptl_absorpt_coefficient_mu    0.361
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9176
_exptl_absorpt_correction_T_max  0.9836
_exptl_absorpt_process_details   SADABS

_exptl_special_details           
;
?
;

_diffrn_ambient_temperature      100(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  ?
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            24013
_diffrn_reflns_av_R_equivalents  0.0704
_diffrn_reflns_av_sigmaI/netI    0.0917
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_theta_min         1.45
_diffrn_reflns_theta_max         30.54
_reflns_number_total             7189
_reflns_number_gt                5341
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    ?
_computing_publication_material  ?

_refine_special_details          
;
Refinement of F^2^ against ALL reflections. The weighted R-factor wR and
goodness of fit S are based on F^2^, conventional R-factors R are based
on F, with F set to zero for negative F^2^. The threshold expression of
F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is
not relevant to the choice of reflections for refinement. R-factors based
on F^2^ are statistically about twice as large as those based on F, and R-
factors based on ALL data will be even larger.
;

_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'calc w=1/[\s^2^(Fo^2^)+(0.0428P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.87(5)
_refine_ls_number_reflns         7189
_refine_ls_number_parameters     325
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0634
_refine_ls_R_factor_gt           0.0404
_refine_ls_wR_factor_ref         0.0947
_refine_ls_wR_factor_gt          0.0764
_refine_ls_goodness_of_fit_ref   0.900
_refine_ls_restrained_S_all      0.900
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
S1 S 0.11826(5) 0.29957(8) 0.02523(4) 0.01792(13) Uani 1 1 d . . .
S2 S 0.34008(5) -0.09628(8) 0.14959(4) 0.01716(13) Uani 1 1 d . . .
Cl3 Cl -0.19870(5) 0.24489(10) 0.56141(4) 0.03131(18) Uani 1 1 d . . .
N1 N 0.11553(16) 0.2123(3) 0.24284(13) 0.0166(4) Uani 1 1 d . . .
O1 O 0.06148(14) 0.1012(2) 0.16771(11) 0.0189(4) Uani 1 1 d . . .
O3 O 0.20688(15) 0.4247(2) 0.05539(12) 0.0243(4) Uani 1 1 d . . .
O4 O 0.45227(14) -0.0811(3) 0.20723(12) 0.0226(4) Uani 1 1 d . . .
C1 C 0.23841(19) 0.1413(3) 0.25901(16) 0.0159(5) Uani 1 1 d . . .
H1 H 0.2360 0.0322 0.2947 0.019 Uiso 1 1 calc R . .
C2 C 0.2928(2) -0.2143(4) -0.03202(16) 0.0193(5) Uani 1 1 d . . .
H2 H 0.2246 -0.2672 -0.0097 0.023 Uiso 1 1 calc R . .
O5 O 0.25634(14) -0.2240(2) 0.17278(11) 0.0219(4) Uani 1 1 d . . .
C3 C 0.4938(2) -0.0566(4) -0.09639(18) 0.0208(6) Uani 1 1 d . . .
H3 H 0.5616 -0.0027 -0.1189 0.025 Uiso 1 1 calc R . .
C4 C 0.1442(2) 0.1052(3) 0.09897(16) 0.0168(5) Uani 1 1 d . . .
H4 H 0.1351 0.0024 0.0576 0.020 Uiso 1 1 calc R . .
C5 C 0.2671(2) 0.1062(3) 0.15432(16) 0.0157(5) Uani 1 1 d . . .
H5 H 0.3183 0.1980 0.1307 0.019 Uiso 1 1 calc R . .
O2 O -0.00654(14) 0.3383(2) 0.02959(12) 0.0241(4) Uani 1 1 d . . .
C6 C 0.0415(2) 0.2075(3) 0.32054(16) 0.0175(5) Uani 1 1 d . . .
C7 C -0.0711(2) 0.1332(4) 0.31156(18) 0.0227(6) Uani 1 1 d . . .
H7 H -0.0970 0.0733 0.2550 0.027 Uiso 1 1 calc R . .
C8 C 0.5022(2) 0.2933(4) 0.42164(17) 0.0238(6) Uani 1 1 d . . .
H8 H 0.5606 0.2463 0.4669 0.029 Uiso 1 1 calc R . .
C9 C 0.1405(2) 0.2398(3) -0.09283(16) 0.0184(5) Uani 1 1 d . . .
C10 C 0.0793(2) 0.2917(4) 0.40486(17) 0.0265(6) Uani 1 1 d . . .
H10 H 0.1562 0.3427 0.4118 0.032 Uiso 1 1 calc R . .
C11 C -0.1070(2) 0.2310(4) 0.46749(17) 0.0222(6) Uani 1 1 d . . .
C12 C 0.32780(18) 0.2594(3) 0.31064(15) 0.0165(5) Uani 1 1 d . . .
C13 C 0.4191(2) -0.1549(4) -0.15804(18) 0.0218(6) Uani 1 1 d . . .
H13 H 0.4369 -0.1696 -0.2224 0.026 Uiso 1 1 calc R . .
C14 C 0.3692(2) -0.1171(3) 0.02906(16) 0.0172(5) Uani 1 1 d . . .
C15 C 0.0448(2) 0.1751(4) -0.15125(17) 0.0212(5) Uani 1 1 d . . .
H15 H -0.0312 0.1605 -0.1275 0.025 Uiso 1 1 calc R . .
C16 C 0.4693(2) -0.0373(4) -0.00262(18) 0.0195(5) Uani 1 1 d . . .
H16 H 0.5200 0.0295 0.0399 0.023 Uiso 1 1 calc R . .
C17 C 0.4196(2) 0.5331(4) 0.33424(17) 0.0198(5) Uani 1 1 d . . .
H17 H 0.4214 0.6505 0.3199 0.024 Uiso 1 1 calc R . .
C18 C 0.3186(2) -0.2320(4) -0.12620(17) 0.0236(6) Uani 1 1 d . . .
H18 H 0.2673 -0.2971 -0.1692 0.028 Uiso 1 1 calc R . .
C19 C 0.5053(2) 0.4644(4) 0.39932(18) 0.0228(6) Uani 1 1 d . . .
H19 H 0.5665 0.5343 0.4289 0.027 Uiso 1 1 calc R . .
C20 C 0.0057(2) 0.3015(4) 0.47832(18) 0.0263(6) Uani 1 1 d . . .
H20 H 0.0325 0.3566 0.5363 0.032 Uiso 1 1 calc R . .
C21 C 0.33076(19) 0.4311(3) 0.28959(16) 0.0174(5) Uani 1 1 d . . .
H21 H 0.2721 0.4788 0.2447 0.021 Uiso 1 1 calc R . .
C22 C -0.1457(2) 0.1463(4) 0.38472(18) 0.0262(6) Uani 1 1 d . . .
H22 H -0.2231 0.0971 0.3780 0.031 Uiso 1 1 calc R . .
C23 C 0.2528(2) 0.2622(4) -0.12653(17) 0.0228(6) Uani 1 1 d . . .
H23 H 0.3173 0.3061 -0.0858 0.027 Uiso 1 1 calc R . .
C24 C 0.4137(2) 0.1918(4) 0.37774(17) 0.0213(5) Uani 1 1 d . . .
H24 H 0.4113 0.0750 0.3933 0.026 Uiso 1 1 calc R . .
C25 C 0.2688(2) 0.2195(4) -0.21987(19) 0.0288(6) Uani 1 1 d . . .
H25 H 0.3445 0.2349 -0.2439 0.035 Uiso 1 1 calc R . .
C26 C 0.0626(2) 0.1324(4) -0.24462(19) 0.0292(6) Uani 1 1 d . . .
H26 H -0.0016 0.0880 -0.2856 0.035 Uiso 1 1 calc R . .
C27 C 0.1747(3) 0.1547(4) -0.2784(2) 0.0320(7) Uani 1 1 d . . .
H27 H 0.1865 0.1249 -0.3423 0.038 Uiso 1 1 calc R . .

loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
S1 0.0174(3) 0.0162(3) 0.0199(3) 0.0014(3) -0.0005(2) 0.0030(3)
S2 0.0173(3) 0.0153(3) 0.0188(3) 0.0008(3) 0.0016(2) 0.0027(3)
Cl3 0.0209(3) 0.0481(5) 0.0262(3) 0.0005(3) 0.0100(2) -0.0004(3)
N1 0.0138(9) 0.0184(12) 0.0175(9) -0.0032(9) 0.0011(7) -0.0031(8)
O1 0.0158(8) 0.0216(10) 0.0196(8) -0.0034(7) 0.0033(6) -0.0044(7)
O3 0.0300(9) 0.0155(10) 0.0260(9) 0.0008(8) -0.0068(7) -0.0032(8)
O4 0.0192(8) 0.0242(11) 0.0236(9) 0.0000(8) -0.0029(7) 0.0049(8)
C1 0.0142(11) 0.0150(13) 0.0186(11) 0.0015(10) 0.0024(9) 0.0010(10)
C2 0.0153(10) 0.0174(14) 0.0251(12) -0.0013(11) 0.0023(9) -0.0019(11)
O5 0.0247(8) 0.0177(11) 0.0238(9) 0.0027(8) 0.0045(7) 0.0005(8)
C3 0.0155(11) 0.0199(15) 0.0276(13) 0.0014(11) 0.0047(10) 0.0019(11)
C4 0.0155(11) 0.0163(13) 0.0186(12) -0.0004(10) 0.0019(9) 0.0004(10)
C5 0.0164(11) 0.0145(12) 0.0161(11) 0.0004(10) 0.0011(9) 0.0001(10)
O2 0.0192(8) 0.0262(12) 0.0269(9) 0.0036(8) 0.0013(7) 0.0107(8)
C6 0.0168(11) 0.0177(14) 0.0184(11) 0.0020(10) 0.0034(9) 0.0019(10)
C7 0.0186(12) 0.0296(17) 0.0195(12) 0.0019(11) 0.0002(9) -0.0012(12)
C8 0.0222(12) 0.0298(16) 0.0188(11) 0.0011(12) -0.0022(9) 0.0004(12)
C9 0.0195(11) 0.0158(13) 0.0195(11) 0.0019(10) -0.0001(9) 0.0001(11)
C10 0.0210(12) 0.0314(16) 0.0284(13) -0.0082(13) 0.0092(10) -0.0109(13)
C11 0.0186(11) 0.0256(15) 0.0234(12) 0.0038(11) 0.0080(9) 0.0041(12)
C12 0.0150(10) 0.0195(14) 0.0152(10) 0.0001(10) 0.0033(8) 0.0003(10)
C13 0.0236(12) 0.0215(14) 0.0207(12) 0.0004(10) 0.0040(10) 0.0047(11)
C14 0.0175(11) 0.0135(14) 0.0209(12) 0.0018(10) 0.0023(9) 0.0044(10)
C15 0.0184(11) 0.0201(15) 0.0246(13) 0.0030(11) -0.0010(10) -0.0011(11)
C16 0.0152(11) 0.0162(14) 0.0267(13) -0.0013(11) 0.0002(10) 0.0013(10)
C17 0.0205(12) 0.0186(14) 0.0212(12) -0.0023(11) 0.0070(10) -0.0019(11)
C18 0.0232(12) 0.0238(16) 0.0235(12) -0.0051(11) -0.0003(10) 0.0000(12)
C19 0.0203(12) 0.0285(16) 0.0197(12) -0.0079(11) 0.0018(10) -0.0056(12)
C20 0.0245(12) 0.0312(16) 0.0242(13) -0.0049(13) 0.0073(10) -0.0056(13)
C21 0.0139(10) 0.0217(15) 0.0172(11) -0.0003(10) 0.0039(8) 0.0021(10)
C22 0.0145(11) 0.0383(18) 0.0260(13) 0.0024(12) 0.0030(10) -0.0008(12)
C23 0.0160(11) 0.0237(16) 0.0280(13) 0.0024(12) -0.0021(9) 0.0020(11)
C24 0.0224(12) 0.0196(14) 0.0218(12) 0.0030(11) 0.0006(10) 0.0005(11)
C25 0.0252(13) 0.0304(18) 0.0316(14) 0.0056(13) 0.0074(11) 0.0038(13)
C26 0.0332(15) 0.0273(17) 0.0256(14) 0.0010(12) -0.0061(11) -0.0011(13)
C27 0.0409(16) 0.0321(18) 0.0232(14) 0.0004(13) 0.0047(12) 0.0058(14)

_geom_special_details            
;
All esds (except the esd in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell esds are taken
into account individually in the estimation of esds in distances, angles
and torsion angles; correlations between esds in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell esds is used for estimating esds involving l.s. planes.
;

loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
S1 O3 1.4415(19) . ?
S1 O2 1.4415(17) . ?
S1 C9 1.764(2) . ?
S1 C4 1.862(3) . ?
S2 O5 1.4365(18) . ?
S2 O4 1.4443(16) . ?
S2 C14 1.761(2) . ?
S2 C5 1.802(3) . ?
Cl3 C11 1.746(2) . ?
N1 C6 1.429(3) . ?
N1 O1 1.465(3) . ?
N1 C1 1.490(3) . ?
O1 C4 1.397(3) . ?
C1 C12 1.511(3) . ?
C1 C5 1.558(3) . ?
C2 C18 1.387(3) . ?
C2 C14 1.393(3) . ?
C3 C16 1.378(4) . ?
C3 C13 1.391(4) . ?
C4 C5 1.526(3) . ?
C6 C7 1.390(3) . ?
C6 C10 1.394(3) . ?
C7 C22 1.385(3) . ?
C8 C24 1.381(4) . ?
C8 C19 1.390(4) . ?
C9 C15 1.394(3) . ?
C9 C23 1.395(3) . ?
C10 C20 1.380(3) . ?
C11 C20 1.380(3) . ?
C11 C22 1.380(4) . ?
C12 C21 1.390(4) . ?
C12 C24 1.397(3) . ?
C13 C18 1.390(3) . ?
C14 C16 1.395(3) . ?
C15 C26 1.386(4) . ?
C17 C19 1.382(4) . ?
C17 C21 1.390(3) . ?
C23 C25 1.381(4) . ?
C25 C27 1.382(4) . ?
C26 C27 1.394(4) . ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
O3 S1 O2 119.46(11) . . ?
O3 S1 C9 108.10(11) . . ?
O2 S1 C9 108.27(10) . . ?
O3 S1 C4 109.34(11) . . ?
O2 S1 C4 104.94(10) . . ?
C9 S1 C4 105.96(12) . . ?
O5 S2 O4 119.22(11) . . ?
O5 S2 C14 109.38(11) . . ?
O4 S2 C14 108.83(10) . . ?
O5 S2 C5 107.89(10) . . ?
O4 S2 C5 106.46(11) . . ?
C14 S2 C5 103.95(11) . . ?
C6 N1 O1 107.61(16) . . ?
C6 N1 C1 117.75(18) . . ?
O1 N1 C1 101.87(17) . . ?
C4 O1 N1 103.06(15) . . ?
N1 C1 C12 114.2(2) . . ?
N1 C1 C5 100.76(17) . . ?
C12 C1 C5 112.42(18) . . ?
C18 C2 C14 118.5(2) . . ?
C16 C3 C13 119.9(2) . . ?
O1 C4 C5 105.88(18) . . ?
O1 C4 S1 108.80(16) . . ?
C5 C4 S1 111.80(17) . . ?
C4 C5 C1 103.39(17) . . ?
C4 C5 S2 111.79(18) . . ?
C1 C5 S2 108.94(16) . . ?
C7 C6 C10 119.2(2) . . ?
C7 C6 N1 121.8(2) . . ?
C10 C6 N1 118.8(2) . . ?
C22 C7 C6 120.3(2) . . ?
C24 C8 C19 119.7(2) . . ?
C15 C9 C23 121.4(2) . . ?
C15 C9 S1 119.24(17) . . ?
C23 C9 S1 119.37(18) . . ?
C20 C10 C6 120.3(2) . . ?
C20 C11 C22 120.6(2) . . ?
C20 C11 Cl3 119.1(2) . . ?
C22 C11 Cl3 120.31(19) . . ?
C21 C12 C24 119.3(2) . . ?
C21 C12 C1 121.9(2) . . ?
C24 C12 C1 118.8(2) . . ?
C18 C13 C3 120.5(2) . . ?
C2 C14 C16 121.6(2) . . ?
C2 C14 S2 119.30(18) . . ?
C16 C14 S2 119.09(19) . . ?
C26 C15 C9 118.8(2) . . ?
C3 C16 C14 119.2(2) . . ?
C19 C17 C21 120.2(3) . . ?
C2 C18 C13 120.3(2) . . ?
C17 C19 C8 120.2(2) . . ?
C11 C20 C10 119.9(2) . . ?
C17 C21 C12 120.0(2) . . ?
C11 C22 C7 119.7(2) . . ?
C25 C23 C9 119.1(2) . . ?
C8 C24 C12 120.6(3) . . ?
C23 C25 C27 120.1(2) . . ?
C15 C26 C27 119.9(2) . . ?
C25 C27 C26 120.8(3) . . ?

_diffrn_measured_fraction_theta_max 0.998
_diffrn_reflns_theta_full        30.54
_diffrn_measured_fraction_theta_full 0.998
_refine_diff_density_max         0.374
_refine_diff_density_min         -0.442
_refine_diff_density_rms         0.106