# Electronic Supplementary Material (ESI) for Chemical Science.
# This journal is © The Royal Society of Chemistry 2015

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_ic15823
_audit_block_doi                 10.5517/cc1j3z9x
_database_code_depnum_ccdc_archive 'CCDC 1403999'
_audit_update_record             
;
2015-05-31 deposited with the CCDC.
2015-10-12 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C17 H8 N2 O3 S'
_chemical_formula_weight         320.31

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'

_symmetry_cell_setting           Monoclinic
_symmetry_space_group_name_H-M   P2(1)/c

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

_cell_length_a                   15.8828(18)
_cell_length_b                   6.8328(8)
_cell_length_c                   13.9502(16)
_cell_angle_alpha                90.00
_cell_angle_beta                 107.844(2)
_cell_angle_gamma                90.00
_cell_volume                     1441.1(3)
_cell_formula_units_Z            4
_cell_measurement_temperature    200(2)
_cell_measurement_reflns_used    666
_cell_measurement_theta_min      2.95
_cell_measurement_theta_max      19.30

_exptl_crystal_description       plate
_exptl_crystal_colour            yellow
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.02
_exptl_crystal_density_meas      not_measured
_exptl_crystal_density_diffrn    1.476
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             656
_exptl_absorpt_coefficient_mu    0.241
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9268
_exptl_absorpt_correction_T_max  0.9952
_exptl_absorpt_process_details   ?

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      200(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  'BRUKER SMART APEXCCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            8334
_diffrn_reflns_av_R_equivalents  0.1061
_diffrn_reflns_av_sigmaI/netI    0.1422
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_theta_min         1.35
_diffrn_reflns_theta_max         25.00
_reflns_number_total             2537
_reflns_number_gt                1845
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker SMART'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
; 
 Refinement of F² against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F², conventional R-factors R are based 
 on F, with F set to zero for negative F². The threshold expression of 
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F² 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/[σ²(Fo²)+(0.0685P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         2537
_refine_ls_number_parameters     209
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1021
_refine_ls_R_factor_gt           0.0669
_refine_ls_wR_factor_ref         0.2021
_refine_ls_wR_factor_gt          0.1620
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_restrained_S_all      1.090
_refine_ls_shift/su_max          0.000
_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 0.79239(6) 0.65563(15) 0.18953(7) 0.0246(4) Uani 1 1 d . . .
O1 O 1.04672(17) 0.6513(4) 0.34416(19) 0.0257(7) Uani 1 1 d . . .
O2 O 1.08266(18) 0.6240(4) 0.06688(19) 0.0292(7) Uani 1 1 d . . .
O3 O 0.91416(17) 0.6123(4) 0.08506(19) 0.0284(7) Uani 1 1 d . . .
H3 H 0.9254 0.5473 0.0393 0.043 Uiso 1 1 calc R . .
N1 N 0.4196(3) 0.7447(9) 0.1725(3) 0.0720(16) Uani 1 1 d . . .
N2 N 0.6005(3) 0.7034(8) -0.0052(3) 0.0627(14) Uani 1 1 d . . .
C1 C 1.1309(3) 0.6563(6) 0.3374(3) 0.0249(9) Uani 1 1 d . . .
C2 C 1.1980(3) 0.6739(6) 0.4276(3) 0.0301(10) Uani 1 1 d . . .
H2 H 1.1854 0.6813 0.4898 0.036 Uiso 1 1 calc R . .
C3 C 1.2839(3) 0.6804(7) 0.4242(3) 0.0361(11) Uani 1 1 d . . .
H3A H 1.3311 0.6898 0.4854 0.043 Uiso 1 1 calc R . .
C4 C 1.3028(3) 0.6735(6) 0.3334(3) 0.0336(11) Uani 1 1 d . . .
H4 H 1.3624 0.6800 0.3329 0.040 Uiso 1 1 calc R . .
C5 C 1.2356(3) 0.6572(6) 0.2443(3) 0.0267(10) Uani 1 1 d . . .
H5 H 1.2488 0.6520 0.1824 0.032 Uiso 1 1 calc R . .
C6 C 1.1467(3) 0.6483(6) 0.2443(3) 0.0231(9) Uani 1 1 d . . .
C7 C 1.0735(3) 0.6306(6) 0.1529(3) 0.0247(9) Uani 1 1 d . . .
C8 C 0.9875(3) 0.6236(6) 0.1658(3) 0.0229(9) Uani 1 1 d . . .
C9 C 0.9768(3) 0.6368(6) 0.2589(3) 0.0223(9) Uani 1 1 d . . .
C10 C 0.8936(3) 0.6445(6) 0.2816(3) 0.0233(9) Uani 1 1 d . . .
C11 C 0.8850(3) 0.6509(6) 0.3772(3) 0.0279(10) Uani 1 1 d . . .
H11 H 0.9336 0.6444 0.4372 0.033 Uiso 1 1 calc R . .
C12 C 0.7983(3) 0.6677(6) 0.3759(3) 0.0292(10) Uani 1 1 d . . .
H12 H 0.7811 0.6751 0.4354 0.035 Uiso 1 1 calc R . .
C13 C 0.7385(3) 0.6728(6) 0.2803(3) 0.0287(10) Uani 1 1 d . . .
C14 C 0.6455(3) 0.6930(6) 0.2596(3) 0.0313(11) Uani 1 1 d . . .
H14 H 0.6264 0.6989 0.3178 0.038 Uiso 1 1 calc R . .
C15 C 0.5798(3) 0.7053(7) 0.1715(3) 0.0350(11) Uani 1 1 d . . .
C16 C 0.4904(3) 0.7271(9) 0.1721(3) 0.0490(14) Uani 1 1 d . . .
C17 C 0.5931(3) 0.7028(8) 0.0736(4) 0.0426(12) Uani 1 1 d . . .

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 0.0288(6) 0.0302(7) 0.0169(5) -0.0014(4) 0.0104(4) 0.0000(5)
O1 0.0281(15) 0.0358(18) 0.0151(14) -0.0002(12) 0.0094(12) -0.0012(13)
O2 0.0386(17) 0.0372(19) 0.0163(14) -0.0027(12) 0.0149(13) -0.0045(13)
O3 0.0292(15) 0.041(2) 0.0150(14) -0.0005(12) 0.0067(12) 0.0031(12)
N1 0.038(3) 0.143(5) 0.036(3) -0.001(3) 0.013(2) 0.006(3)
N2 0.058(3) 0.107(4) 0.027(2) 0.003(2) 0.017(2) -0.005(3)
C1 0.029(2) 0.025(2) 0.023(2) 0.0031(17) 0.0117(18) 0.0040(18)
C2 0.034(2) 0.036(3) 0.019(2) -0.0026(18) 0.0074(18) 0.0033(19)
C3 0.033(3) 0.041(3) 0.030(3) 0.000(2) 0.005(2) 0.004(2)
C4 0.030(2) 0.037(3) 0.035(3) -0.001(2) 0.010(2) 0.0004(19)
C5 0.033(2) 0.023(2) 0.028(2) -0.0035(18) 0.0160(19) 0.0003(18)
C6 0.029(2) 0.019(2) 0.022(2) 0.0020(16) 0.0090(17) 0.0007(17)
C7 0.035(2) 0.019(2) 0.021(2) -0.0017(16) 0.0111(18) -0.0004(17)
C8 0.030(2) 0.023(2) 0.0156(19) -0.0009(16) 0.0076(17) -0.0048(17)
C9 0.027(2) 0.021(2) 0.020(2) -0.0008(16) 0.0083(17) 0.0025(16)
C10 0.032(2) 0.023(2) 0.018(2) -0.0001(16) 0.0120(17) -0.0003(17)
C11 0.033(2) 0.034(3) 0.016(2) -0.0008(17) 0.0067(17) -0.0006(19)
C12 0.037(2) 0.034(3) 0.022(2) 0.0022(18) 0.0161(19) 0.0024(19)
C13 0.032(2) 0.032(3) 0.026(2) 0.0025(19) 0.0155(18) -0.0003(19)
C14 0.032(2) 0.039(3) 0.028(2) 0.0010(19) 0.0162(19) -0.0002(19)
C15 0.036(3) 0.050(3) 0.024(2) 0.002(2) 0.0173(19) 0.002(2)
C16 0.036(3) 0.087(4) 0.026(3) 0.004(3) 0.012(2) 0.004(3)
C17 0.033(3) 0.060(4) 0.035(3) 0.001(2) 0.011(2) 0.002(2)

_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 C10 1.724(4) . ?
S1 C13 1.736(4) . ?
O1 C9 1.360(5) . ?
O1 C1 1.369(5) . ?
O2 C7 1.253(4) . ?
O3 C8 1.352(4) . ?
N1 C16 1.132(6) . ?
N2 C17 1.140(6) . ?
C1 C2 1.382(5) . ?
C1 C6 1.397(5) . ?
C2 C3 1.380(6) . ?
C3 C4 1.390(6) . ?
C4 C5 1.372(6) . ?
C5 C6 1.412(5) . ?
C6 C7 1.444(5) . ?
C7 C8 1.432(6) . ?
C8 C9 1.363(5) . ?
C9 C10 1.451(6) . ?
C10 C11 1.383(5) . ?
C11 C12 1.377(6) . ?
C12 C13 1.380(6) . ?
C13 C14 1.423(6) . ?
C14 C15 1.349(6) . ?
C15 C16 1.430(7) . ?
C15 C17 1.446(6) . ?

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
C10 S1 C13 90.86(19) . . ?
C9 O1 C1 119.6(3) . . ?
O1 C1 C2 115.9(4) . . ?
O1 C1 C6 121.4(3) . . ?
C2 C1 C6 122.7(4) . . ?
C3 C2 C1 117.8(4) . . ?
C2 C3 C4 121.4(4) . . ?
C5 C4 C3 120.2(4) . . ?
C4 C5 C6 120.2(4) . . ?
C1 C6 C5 117.6(4) . . ?
C1 C6 C7 119.9(4) . . ?
C5 C6 C7 122.5(4) . . ?
O2 C7 C8 120.9(4) . . ?
O2 C7 C6 123.4(4) . . ?
C8 C7 C6 115.6(3) . . ?
O3 C8 C9 118.0(4) . . ?
O3 C8 C7 120.6(3) . . ?
C9 C8 C7 121.3(4) . . ?
O1 C9 C8 122.1(4) . . ?
O1 C9 C10 111.1(3) . . ?
C8 C9 C10 126.7(4) . . ?
C11 C10 C9 125.3(4) . . ?
C11 C10 S1 111.8(3) . . ?
C9 C10 S1 122.9(3) . . ?
C12 C11 C10 112.6(4) . . ?
C11 C12 C13 113.8(4) . . ?
C12 C13 C14 124.2(4) . . ?
C12 C13 S1 110.9(3) . . ?
C14 C13 S1 124.9(3) . . ?
C15 C14 C13 131.0(4) . . ?
C14 C15 C16 119.6(4) . . ?
C14 C15 C17 124.3(4) . . ?
C16 C15 C17 116.1(4) . . ?
N1 C16 C15 179.9(7) . . ?
N2 C17 C15 177.5(5) . . ?

loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
_geom_hbond_site_symmetry_A
O3 H3 O2 0.84 2.46 2.766(4) 102.2 .

_diffrn_measured_fraction_theta_max 0.997
_diffrn_reflns_theta_full        25.00
_diffrn_measured_fraction_theta_full 0.997
_refine_diff_density_max         0.397
_refine_diff_density_min         -0.493
_refine_diff_density_rms         0.131
