# Electronic Supplementary Material (ESI) for RSC Advances.
# This journal is © The Royal Society of Chemistry 2017

####################################################################### 
# 
# 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_20170120_0m
_database_code_depnum_ccdc_archive 'CCDC 1554177'
_audit_update_record             
;
2017-06-05 deposited with the CCDC.
2017-07-05 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C18 H14 N4 S2'
_chemical_formula_weight         350.45

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'
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)/n

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

_cell_length_a                   9.1901(2)
_cell_length_b                   9.9832(2)
_cell_length_c                   9.6509(2)
_cell_angle_alpha                90.00
_cell_angle_beta                 115.4630(10)
_cell_angle_gamma                90.00
_cell_volume                     799.43(3)
_cell_formula_units_Z            2
_cell_measurement_temperature    296(1)
_cell_measurement_reflns_used    3211
_cell_measurement_theta_min      3.10
_cell_measurement_theta_max      28.12

_exptl_crystal_description       block
_exptl_crystal_colour            brown
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_exptl_crystal_density_meas      none
_exptl_crystal_density_diffrn    1.456
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             364
_exptl_absorpt_coefficient_mu    0.340
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.8761
_exptl_absorpt_correction_T_max  0.9668
_exptl_absorpt_process_details   'Bruker SADABS'

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      296(1)
_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 APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            7593
_diffrn_reflns_av_R_equivalents  0.0221
_diffrn_reflns_av_sigmaI/netI    0.0190
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_theta_min         2.56
_diffrn_reflns_theta_max         28.33
_reflns_number_total             1986
_reflns_number_gt                1606
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker APEX2'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_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)+(0.0932P)²+0.1005P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         1986
_refine_ls_number_parameters     140
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0601
_refine_ls_R_factor_gt           0.0500
_refine_ls_wR_factor_ref         0.1486
_refine_ls_wR_factor_gt          0.1389
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_restrained_S_all      1.054
_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 0.0501(3) 0.4091(2) -0.3071(2) 0.0676(6) Uani 0.641(4) 1 d P A 1
C4 C 0.1878(8) 0.5017(7) -0.3209(6) 0.0367(11) Uani 0.641(4) 1 d P A 1
H4 H 0.2024 0.5248 -0.4075 0.044 Uiso 0.641(4) 1 calc PR A 1
S1A S 0.1938(8) 0.5091(6) -0.3042(5) 0.095(2) Uani 0.359(4) 1 d P A 2
C4A C 0.054(3) 0.398(2) -0.2786(16) 0.094(6) Uani 0.359(4) 1 d P A 2
H4A H -0.0308 0.3497 -0.3513 0.113 Uiso 0.359(4) 1 calc PR A 2
N1 N 0.55227(16) 0.63630(13) 0.48701(13) 0.0426(3) Uani 1 1 d . A .
N2 N 0.40559(16) 0.59359(12) 0.21700(14) 0.0409(3) Uani 1 1 d . A .
C1 C 0.1063(3) 0.40548(19) -0.1181(2) 0.0587(5) Uani 1 1 d . . .
H1A H 0.394(3) 0.601(2) -0.104(2) 0.057(6) Uiso 1 1 d . . .
C2 C 0.2418(2) 0.48312(16) -0.03819(16) 0.0446(4) Uani 1 1 d . A .
C3 C 0.2955(2) 0.5440(2) -0.13953(19) 0.0521(4) Uani 1 1 d . . .
H3A H 0.043(3) 0.354(3) -0.075(3) 0.085(7) Uiso 1 1 d . . .
C5 C 0.31881(19) 0.48547(15) 0.12931(17) 0.0410(4) Uani 1 1 d . . .
C6 C 0.3194(2) 0.38257(17) 0.22450(17) 0.0444(4) Uani 1 1 d . . .
H6A H 0.271(2) 0.2956(18) 0.1910(19) 0.042(4) Uiso 1 1 d . . .
C7 C 0.59037(19) 0.57373(15) 0.62238(16) 0.0400(4) Uani 1 1 d . . .
C8 C 0.46285(18) 0.55943(15) 0.36922(16) 0.0388(4) Uani 1 1 d . . .
C9 C 0.4440(2) 0.71965(16) 0.16432(18) 0.0489(4) Uani 1 1 d . . .
H9A H 0.5056 0.7751 0.2512 0.073 Uiso 1 1 calc R A .
H9B H 0.3460 0.7649 0.0996 0.073 Uiso 1 1 calc R . .
H9C H 0.5057 0.7021 0.1074 0.073 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 0.0866(11) 0.0679(9) 0.0312(4) -0.0071(4) 0.0091(4) 0.0046(8)
C4 0.046(2) 0.045(2) 0.0155(11) 0.0037(12) 0.0098(13) 0.0120(18)
S1A 0.117(4) 0.098(3) 0.082(3) 0.017(2) 0.054(2) 0.036(2)
C4A 0.107(12) 0.069(6) 0.110(14) 0.005(7) 0.049(10) -0.028(7)
N1 0.0511(8) 0.0400(6) 0.0333(6) 0.0020(5) 0.0150(6) -0.0030(5)
N2 0.0468(8) 0.0418(7) 0.0305(6) 0.0034(4) 0.0132(5) -0.0017(5)
C1 0.0674(12) 0.0589(11) 0.0387(9) -0.0020(7) 0.0123(8) -0.0083(9)
C2 0.0504(9) 0.0472(8) 0.0318(7) 0.0017(6) 0.0137(7) 0.0083(7)
C3 0.0541(11) 0.0629(10) 0.0394(8) 0.0092(7) 0.0201(8) 0.0111(9)
C5 0.0424(8) 0.0452(8) 0.0339(7) 0.0003(6) 0.0148(6) 0.0009(6)
C6 0.0518(10) 0.0440(8) 0.0335(7) -0.0009(6) 0.0145(7) -0.0046(7)
C7 0.0437(8) 0.0399(7) 0.0339(7) 0.0010(5) 0.0144(6) -0.0018(6)
C8 0.0415(8) 0.0407(7) 0.0333(7) 0.0041(5) 0.0152(6) 0.0010(6)
C9 0.0619(10) 0.0424(8) 0.0424(8) 0.0084(6) 0.0223(7) -0.0007(7)

_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 C4 1.618(8) . ?
S1 C1 1.669(3) . ?
C4 C3 1.653(6) . ?
C4 H4 0.9300 . ?
S1A C3 1.498(6) . ?
S1A C4A 1.79(2) . ?
C4A C1 1.412(14) . ?
C4A H4A 0.9300 . ?
N1 C8 1.3241(19) . ?
N1 C7 1.3513(18) . ?
N2 C8 1.3736(18) . ?
N2 C5 1.3917(19) . ?
N2 C9 1.4566(19) . ?
C1 C2 1.386(3) . ?
C1 H3A 0.99(3) . ?
C2 C3 1.409(2) . ?
C2 C5 1.460(2) . ?
C3 H1A 0.99(2) . ?
C5 C6 1.376(2) . ?
C6 C7 1.417(2) 3_666 ?
C6 H6A 0.967(18) . ?
C7 C6 1.417(2) 3_666 ?
C7 C8 1.431(2) 3_666 ?
C8 C7 1.431(2) 3_666 ?
C9 H9A 0.9600 . ?
C9 H9B 0.9600 . ?
C9 H9C 0.9600 . ?

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
C4 S1 C1 102.5(2) . . ?
S1 C4 C3 101.1(3) . . ?
S1 C4 H4 129.4 . . ?
C3 C4 H4 129.4 . . ?
C3 S1A C4A 98.9(5) . . ?
C1 C4A S1A 101.2(11) . . ?
C1 C4A H4A 129.4 . . ?
S1A C4A H4A 129.4 . . ?
C8 N1 C7 111.67(13) . . ?
C8 N2 C5 108.28(12) . . ?
C8 N2 C9 123.29(13) . . ?
C5 N2 C9 128.28(12) . . ?
C2 C1 C4A 116.1(9) . . ?
C2 C1 S1 112.20(18) . . ?
C4A C1 S1 4.5(9) . . ?
C2 C1 H3A 127.3(16) . . ?
C4A C1 H3A 116.6(18) . . ?
S1 C1 H3A 120.4(16) . . ?
C1 C2 C3 110.75(15) . . ?
C1 C2 C5 121.14(15) . . ?
C3 C2 C5 127.87(16) . . ?
C2 C3 S1A 113.0(3) . . ?
C2 C3 C4 113.3(3) . . ?
S1A C3 C4 1.9(5) . . ?
C2 C3 H1A 123.1(12) . . ?
S1A C3 H1A 123.8(12) . . ?
C4 C3 H1A 123.4(12) . . ?
C6 C5 N2 109.64(13) . . ?
C6 C5 C2 126.02(14) . . ?
N2 C5 C2 124.34(13) . . ?
C5 C6 C7 107.40(14) . 3_666 ?
C5 C6 H6A 125.3(10) . . ?
C7 C6 H6A 127.2(10) 3_666 . ?
N1 C7 C6 131.16(14) . 3_666 ?
N1 C7 C8 122.10(13) . 3_666 ?
C6 C7 C8 106.73(13) 3_666 3_666 ?
N1 C8 N2 125.82(13) . . ?
N1 C8 C7 126.23(13) . 3_666 ?
N2 C8 C7 107.95(12) . 3_666 ?
N2 C9 H9A 109.5 . . ?
N2 C9 H9B 109.5 . . ?
H9A C9 H9B 109.5 . . ?
N2 C9 H9C 109.5 . . ?
H9A C9 H9C 109.5 . . ?
H9B C9 H9C 109.5 . . ?

loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
C1 S1 C4 C3 -3.1(4) . . . . ?
C3 S1A C4A C1 2.5(11) . . . . ?
S1A C4A C1 C2 -2.9(12) . . . . ?
S1A C4A C1 S1 26(12) . . . . ?
C4 S1 C1 C2 2.3(3) . . . . ?
C4 S1 C1 C4A -149(12) . . . . ?
C4A C1 C2 C3 2.2(9) . . . . ?
S1 C1 C2 C3 -0.2(2) . . . . ?
C4A C1 C2 C5 -172.7(9) . . . . ?
S1 C1 C2 C5 -175.03(15) . . . . ?
C1 C2 C3 S1A -0.1(3) . . . . ?
C5 C2 C3 S1A 174.3(3) . . . . ?
C1 C2 C3 C4 -2.2(3) . . . . ?
C5 C2 C3 C4 172.3(3) . . . . ?
C4A S1A C3 C2 -1.5(7) . . . . ?
C4A S1A C3 C4 97(15) . . . . ?
S1 C4 C3 C2 3.5(5) . . . . ?
S1 C4 C3 S1A -79(15) . . . . ?
C8 N2 C5 C6 0.32(18) . . . . ?
C9 N2 C5 C6 175.96(16) . . . . ?
C8 N2 C5 C2 -178.86(14) . . . . ?
C9 N2 C5 C2 -3.2(2) . . . . ?
C1 C2 C5 C6 29.1(3) . . . . ?
C3 C2 C5 C6 -144.85(19) . . . . ?
C1 C2 C5 N2 -151.90(17) . . . . ?
C3 C2 C5 N2 34.2(3) . . . . ?
N2 C5 C6 C7 -0.11(18) . . . 3_666 ?
C2 C5 C6 C7 179.06(14) . . . 3_666 ?
C8 N1 C7 C6 -179.10(16) . . . 3_666 ?
C8 N1 C7 C8 -0.1(2) . . . 3_666 ?
C7 N1 C8 N2 -179.52(15) . . . . ?
C7 N1 C8 C7 0.1(2) . . . 3_666 ?
C5 N2 C8 N1 179.25(14) . . . . ?
C9 N2 C8 N1 3.4(2) . . . . ?
C5 N2 C8 C7 -0.40(17) . . . 3_666 ?
C9 N2 C8 C7 -176.30(14) . . . 3_666 ?

_diffrn_measured_fraction_theta_max 0.998
_diffrn_reflns_theta_full        28.33
_diffrn_measured_fraction_theta_full 0.998
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.320
_refine_diff_density_rms         0.072
