Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270107064074/gg3133sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270107064074/gg3133Isup2.hkl | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270107064074/gg3133IIsup3.hkl | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270107064074/gg3133IIIsup4.hkl |
CCDC references: 677221; 677222; 677223
Equimolar quantities (2 mmol of each component) of an S,S-diethyl aroyliminodithiocarbonate and the appropriate 5-amino-3-arylpyrazole (see scheme) were placed in open Pyrex glass vessels and irradiated in a domestic microwave oven for 10–15 min to give the products (I) –(III). The compounds were purified by column chromatography on silica gel, using a mixture of hexanes and ethyl acetate (4:1 v/v) as eluant. After removal of the solvent, crystallization from ethyl acetate solutions provided crystals of (I)–(III) suitable for single-crystal X-ray diffraction [(I) yield 60%, m.p. 397 K; (II) yield 63%, m.p. 407 K; (III) yield 71%, m.p. 431 K].
Crystals of (I) are triclinic; the space group P1 was selected and confirmed by the structure analysis. For (II) and (III), the space groups P21/c and P21/n, respectively, were uniquely assigned from the systematic absences. All H atoms were located in difference maps and then treated as riding atoms in geometrically idealized positions with C—H distances of 0.95 Å (aromatic and heteroaromatic), 0.98 Å (CH3) or 0.99 Å (CH2), and with Uiso(H) = kUeq(C), where k = 1.5 for the methyl groups and k = 1.2 for all other H atoms. In (I), the unsubstituted phenyl ring was found to exhibit orientational disorder; this was modelled using two sets of sites, labelled A and B, respectively, for atoms C42, C42, C45 and C46. Refinement of the site-occupancy factors for these two sets of atoms gave values that were identical within experimental uncertainly, and so these occupancies were fixed at 0.5 during the final refinements.
For all compounds, data collection: COLLECT (Hooft, 1999); cell refinement: DIRAX/LSQ (Duisenberg et al., 2000); data reduction: EVALCCD (Duisenberg et al., 2003); program(s) used to solve structure: Sir2004 (Burla et al., 2005); program(s) used to refine structure: OSCAIL (McArdle, 2003) and SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 and PRPKAPPA (Ferguson, 1999).
C20H18N4S | Z = 2 |
Mr = 346.45 | F(000) = 364 |
Triclinic, P1 | Dx = 1.357 Mg m−3 |
Hall symbol: -P 1 | Melting point: 397 K |
a = 4.8076 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 11.6397 (5) Å | Cell parameters from 3861 reflections |
c = 15.5010 (7) Å | θ = 3.9–27.5° |
α = 92.164 (4)° | µ = 0.20 mm−1 |
β = 96.217 (5)° | T = 120 K |
γ = 100.087 (4)° | Block, colourless |
V = 847.56 (8) Å3 | 0.62 × 0.42 × 0.05 mm |
Bruker–Nonius KappaCCD diffractometer | 3861 independent reflections |
Radiation source: Bruker-Nonius FR591 rotating anode | 2858 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.036 |
Detector resolution: 9.091 pixels mm-1 | θmax = 27.5°, θmin = 3.9° |
ϕ & ω scans | h = −6→5 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | k = −15→14 |
Tmin = 0.886, Tmax = 0.990 | l = −20→20 |
13384 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.106 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0358P)2 + 0.5471P] where P = (Fo2 + 2Fc2)/3 |
3861 reflections | (Δ/σ)max < 0.001 |
264 parameters | Δρmax = 0.32 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
C20H18N4S | γ = 100.087 (4)° |
Mr = 346.45 | V = 847.56 (8) Å3 |
Triclinic, P1 | Z = 2 |
a = 4.8076 (3) Å | Mo Kα radiation |
b = 11.6397 (5) Å | µ = 0.20 mm−1 |
c = 15.5010 (7) Å | T = 120 K |
α = 92.164 (4)° | 0.62 × 0.42 × 0.05 mm |
β = 96.217 (5)° |
Bruker–Nonius KappaCCD diffractometer | 3861 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2858 reflections with I > 2σ(I) |
Tmin = 0.886, Tmax = 0.990 | Rint = 0.036 |
13384 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.106 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.32 e Å−3 |
3861 reflections | Δρmin = −0.31 e Å−3 |
264 parameters |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
S2 | −0.04044 (10) | 0.12973 (4) | 0.88304 (3) | 0.02346 (13) | |
N1 | 0.2504 (3) | 0.12197 (12) | 0.74638 (9) | 0.0205 (3) | |
N3 | 0.3530 (3) | 0.29352 (12) | 0.84366 (9) | 0.0205 (3) | |
N5 | 0.6002 (3) | 0.28969 (12) | 0.72425 (9) | 0.0198 (3) | |
N6 | 0.7943 (3) | 0.32813 (13) | 0.66880 (9) | 0.0223 (3) | |
C2 | 0.2117 (4) | 0.18407 (15) | 0.81480 (11) | 0.0198 (4) | |
C4 | 0.5499 (4) | 0.34551 (15) | 0.79871 (11) | 0.0204 (4) | |
C7 | 0.7655 (4) | 0.23854 (15) | 0.60945 (11) | 0.0201 (4) | |
C8 | 0.5600 (4) | 0.14299 (15) | 0.62612 (11) | 0.0218 (4) | |
C8A | 0.4533 (4) | 0.17628 (15) | 0.69945 (11) | 0.0199 (4) | |
C21 | −0.1931 (4) | −0.01242 (15) | 0.83150 (12) | 0.0233 (4) | |
C22 | −0.4076 (4) | −0.07243 (16) | 0.88777 (13) | 0.0272 (4) | |
C41 | 0.7133 (4) | 0.46165 (15) | 0.83175 (11) | 0.0214 (4) | |
C44 | 0.9966 (4) | 0.67626 (16) | 0.90758 (12) | 0.0228 (4) | |
C42A | 0.5785 (8) | 0.5260 (3) | 0.8903 (2) | 0.0213 (7) | 0.50 |
C43A | 0.7261 (8) | 0.6316 (3) | 0.9284 (2) | 0.0226 (8) | 0.50 |
C45A | 1.1151 (9) | 0.6162 (3) | 0.8466 (3) | 0.0243 (8) | 0.50 |
C46A | 0.9653 (9) | 0.5094 (3) | 0.8076 (3) | 0.0226 (8) | 0.50 |
C42B | 0.7396 (8) | 0.4838 (3) | 0.9233 (2) | 0.0223 (7) | 0.50 |
C43B | 0.8778 (8) | 0.5926 (3) | 0.9601 (2) | 0.0236 (8) | 0.50 |
C45B | 0.9883 (9) | 0.6516 (3) | 0.8191 (3) | 0.0233 (8) | 0.50 |
C46B | 0.8559 (9) | 0.5429 (3) | 0.7819 (3) | 0.0215 (8) | 0.50 |
C71 | 0.9426 (4) | 0.24787 (15) | 0.53764 (11) | 0.0212 (4) | |
C72 | 1.1076 (4) | 0.35338 (17) | 0.52152 (13) | 0.0301 (4) | |
C73 | 1.2746 (5) | 0.3593 (2) | 0.45401 (14) | 0.0407 (6) | |
C74 | 1.2865 (4) | 0.26156 (19) | 0.40143 (12) | 0.0310 (5) | |
C75 | 1.1190 (4) | 0.15722 (18) | 0.41701 (12) | 0.0298 (4) | |
C76 | 0.9495 (4) | 0.15008 (17) | 0.48404 (12) | 0.0284 (4) | |
C77 | 1.4771 (5) | 0.2691 (2) | 0.33016 (15) | 0.0502 (7) | |
H8 | 0.5064 | 0.0704 | 0.5933 | 0.026* | |
H21A | −0.2879 | −0.0040 | 0.7727 | 0.028* | |
H21B | −0.0423 | −0.0593 | 0.8258 | 0.028* | |
H22A | −0.3095 | −0.0851 | 0.9444 | 0.041* | |
H22B | −0.5026 | −0.1478 | 0.8593 | 0.041* | |
H22C | −0.5493 | −0.0231 | 0.8959 | 0.041* | |
H44 | 1.0833 | 0.7499 | 0.9318 | 0.027* | |
H42A | 0.3908 | 0.4967 | 0.9028 | 0.026* | 0.50 |
H43A | 0.6422 | 0.6738 | 0.9690 | 0.027* | 0.50 |
H45A | 1.2979 | 0.6474 | 0.8311 | 0.029* | 0.50 |
H46A | 1.0432 | 0.4705 | 0.7635 | 0.027* | 0.50 |
H42B | 0.6632 | 0.4247 | 0.9592 | 0.027* | 0.50 |
H43B | 0.8901 | 0.6091 | 1.0210 | 0.028* | 0.50 |
H45B | 1.0738 | 0.7095 | 0.7838 | 0.028* | 0.50 |
H46B | 0.8634 | 0.5244 | 0.7221 | 0.026* | 0.50 |
H72 | 1.1059 | 0.4217 | 0.5569 | 0.036* | |
H73 | 1.3843 | 0.4324 | 0.4433 | 0.049* | |
H75 | 1.1201 | 0.0893 | 0.3812 | 0.036* | |
H76 | 0.8361 | 0.0773 | 0.4936 | 0.034* | |
H77A | 1.3681 | 0.2811 | 0.2751 | 0.075* | |
H77B | 1.5516 | 0.1963 | 0.3248 | 0.075* | |
H77C | 1.6356 | 0.3348 | 0.3442 | 0.075* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S2 | 0.0257 (3) | 0.0195 (2) | 0.0242 (2) | 0.00043 (18) | 0.00539 (18) | −0.00027 (17) |
N1 | 0.0213 (8) | 0.0182 (7) | 0.0217 (8) | 0.0035 (6) | 0.0014 (6) | −0.0002 (6) |
N3 | 0.0230 (8) | 0.0164 (7) | 0.0217 (8) | 0.0018 (6) | 0.0039 (6) | 0.0016 (6) |
N5 | 0.0241 (8) | 0.0169 (7) | 0.0182 (7) | 0.0025 (6) | 0.0042 (6) | 0.0008 (6) |
N6 | 0.0279 (8) | 0.0194 (8) | 0.0200 (7) | 0.0029 (6) | 0.0075 (6) | 0.0008 (6) |
C2 | 0.0207 (9) | 0.0195 (9) | 0.0196 (9) | 0.0057 (7) | −0.0003 (7) | 0.0028 (7) |
C4 | 0.0240 (9) | 0.0189 (9) | 0.0189 (9) | 0.0047 (7) | 0.0035 (7) | 0.0014 (7) |
C7 | 0.0252 (9) | 0.0182 (9) | 0.0174 (8) | 0.0072 (7) | −0.0003 (7) | 0.0003 (7) |
C8 | 0.0262 (9) | 0.0182 (9) | 0.0205 (9) | 0.0045 (7) | 0.0009 (7) | −0.0023 (7) |
C8A | 0.0203 (9) | 0.0172 (8) | 0.0212 (9) | 0.0030 (7) | −0.0008 (7) | 0.0011 (7) |
C21 | 0.0244 (10) | 0.0183 (9) | 0.0265 (10) | 0.0019 (7) | 0.0035 (8) | 0.0019 (7) |
C22 | 0.0260 (10) | 0.0236 (9) | 0.0305 (10) | −0.0013 (8) | 0.0058 (8) | 0.0014 (8) |
C41 | 0.0258 (9) | 0.0176 (9) | 0.0214 (9) | 0.0037 (7) | 0.0065 (7) | 0.0002 (7) |
C44 | 0.0248 (9) | 0.0180 (9) | 0.0244 (9) | 0.0006 (7) | 0.0041 (8) | −0.0027 (7) |
C42A | 0.0242 (19) | 0.0188 (17) | 0.0209 (18) | 0.0020 (15) | 0.0049 (15) | 0.0026 (14) |
C43A | 0.031 (2) | 0.0172 (17) | 0.0211 (18) | 0.0056 (16) | 0.0069 (16) | −0.0018 (14) |
C45A | 0.024 (2) | 0.0219 (19) | 0.025 (2) | −0.0026 (17) | 0.0044 (16) | 0.0017 (15) |
C46A | 0.029 (2) | 0.019 (2) | 0.021 (2) | 0.0042 (17) | 0.0090 (17) | 0.0001 (16) |
C42B | 0.0214 (18) | 0.0236 (19) | 0.0221 (18) | 0.0038 (15) | 0.0042 (15) | 0.0014 (15) |
C43B | 0.0218 (19) | 0.0255 (19) | 0.0234 (19) | 0.0038 (16) | 0.0028 (15) | −0.0005 (15) |
C45B | 0.024 (2) | 0.022 (2) | 0.024 (2) | 0.0035 (17) | 0.0061 (16) | 0.0046 (16) |
C46B | 0.028 (2) | 0.019 (2) | 0.0190 (19) | 0.0050 (17) | 0.0080 (17) | 0.0034 (15) |
C71 | 0.0228 (9) | 0.0240 (9) | 0.0172 (8) | 0.0069 (7) | 0.0005 (7) | 0.0004 (7) |
C72 | 0.0330 (11) | 0.0273 (10) | 0.0274 (10) | −0.0018 (8) | 0.0076 (8) | −0.0086 (8) |
C73 | 0.0387 (12) | 0.0423 (13) | 0.0341 (12) | −0.0149 (10) | 0.0134 (10) | −0.0122 (10) |
C74 | 0.0236 (10) | 0.0490 (13) | 0.0196 (9) | 0.0059 (9) | 0.0022 (8) | −0.0047 (9) |
C75 | 0.0392 (12) | 0.0328 (11) | 0.0209 (9) | 0.0171 (9) | 0.0034 (8) | −0.0027 (8) |
C76 | 0.0411 (12) | 0.0218 (9) | 0.0246 (10) | 0.0095 (8) | 0.0071 (8) | 0.0020 (7) |
C77 | 0.0350 (12) | 0.0790 (19) | 0.0324 (12) | −0.0025 (12) | 0.0137 (10) | −0.0169 (12) |
S2—C2 | 1.7461 (18) | C44—C43A | 1.391 (4) |
S2—C21 | 1.8062 (18) | C44—H44 | 0.93 |
N1—C2 | 1.309 (2) | C42A—C43A | 1.382 (5) |
N1—C8A | 1.361 (2) | C42A—H42A | 0.95 |
N3—C4 | 1.312 (2) | C43A—H43A | 0.95 |
N3—C2 | 1.368 (2) | C45A—C46A | 1.402 (5) |
N5—N6 | 1.366 (2) | C45A—H45A | 0.95 |
N5—C4 | 1.368 (2) | C46A—H46A | 0.95 |
N5—C8A | 1.402 (2) | C42B—C43B | 1.392 (5) |
N6—C7 | 1.342 (2) | C42B—H42B | 0.95 |
C4—C41 | 1.482 (2) | C43B—H43B | 0.95 |
C7—C8 | 1.404 (3) | C45B—C46B | 1.386 (5) |
C7—C71 | 1.469 (2) | C45B—H45B | 0.95 |
C8—C8A | 1.367 (2) | C46B—H46B | 0.95 |
C8—H8 | 0.95 | C71—C72 | 1.388 (3) |
C21—C22 | 1.517 (2) | C71—C76 | 1.391 (3) |
C21—H21A | 0.99 | C72—C73 | 1.383 (3) |
C21—H21B | 0.99 | C72—H72 | 0.95 |
C22—H22A | 0.98 | C73—C74 | 1.387 (3) |
C22—H22B | 0.98 | C73—H73 | 0.95 |
C22—H22C | 0.98 | C74—C75 | 1.380 (3) |
C41—C46A | 1.340 (4) | C74—C77 | 1.505 (3) |
C41—C46B | 1.380 (4) | C75—C76 | 1.385 (3) |
C41—C42B | 1.421 (4) | C75—H75 | 0.95 |
C41—C42A | 1.433 (4) | C76—H76 | 0.95 |
C44—C43B | 1.379 (4) | C77—H77A | 0.98 |
C44—C45A | 1.383 (4) | C77—H77B | 0.98 |
C44—C45B | 1.385 (4) | C77—H77C | 0.98 |
C2—S2—C21 | 102.54 (8) | C43A—C42A—H42A | 120.6 |
C2—N1—C8A | 114.23 (15) | C41—C42A—H42A | 120.6 |
C4—N3—C2 | 118.17 (15) | C42A—C43A—C44 | 120.4 (3) |
N6—N5—C4 | 128.05 (15) | C42A—C43A—H43A | 119.8 |
N6—N5—C8A | 111.81 (14) | C44—C43A—H43A | 119.8 |
C4—N5—C8A | 120.06 (15) | C44—C45A—C46A | 120.0 (3) |
C7—N6—N5 | 103.82 (14) | C44—C45A—H45A | 120.0 |
N1—C2—N3 | 127.56 (16) | C46A—C45A—H45A | 120.0 |
N1—C2—S2 | 121.09 (14) | C41—C46A—C45A | 120.7 (3) |
N3—C2—S2 | 111.34 (12) | C41—C46A—H46A | 119.7 |
N3—C4—N5 | 118.91 (16) | C45A—C46A—H46A | 119.7 |
N3—C4—C41 | 118.51 (15) | C43B—C42B—C41 | 119.6 (3) |
N5—C4—C41 | 122.56 (15) | C43B—C42B—H42B | 120.2 |
N6—C7—C8 | 112.74 (16) | C41—C42B—H42B | 120.2 |
N6—C7—C71 | 119.77 (16) | C44—C43B—C42B | 119.7 (3) |
C8—C7—C71 | 127.49 (16) | C44—C43B—H43B | 120.2 |
C8A—C8—C7 | 105.61 (16) | C42B—C43B—H43B | 120.2 |
C8A—C8—H8 | 127.2 | C44—C45B—C46B | 120.3 (3) |
C7—C8—H8 | 127.2 | C44—C45B—H45B | 119.8 |
N1—C8A—C8 | 133.00 (16) | C46B—C45B—H45B | 119.8 |
N1—C8A—N5 | 120.98 (15) | C41—C46B—C45B | 120.0 (3) |
C8—C8A—N5 | 106.02 (15) | C41—C46B—H46B | 120.0 |
C22—C21—S2 | 107.87 (13) | C45B—C46B—H46B | 120.0 |
C22—C21—H21A | 110.1 | C72—C71—C76 | 118.22 (17) |
S2—C21—H21A | 110.1 | C72—C71—C7 | 121.35 (16) |
C22—C21—H21B | 110.1 | C76—C71—C7 | 120.43 (17) |
S2—C21—H21B | 110.1 | C73—C72—C71 | 120.08 (18) |
H21A—C21—H21B | 108.4 | C73—C72—H72 | 120.0 |
C21—C22—H22A | 109.5 | C71—C72—H72 | 120.0 |
C21—C22—H22B | 109.5 | C72—C73—C74 | 121.9 (2) |
H22A—C22—H22B | 109.5 | C72—C73—H73 | 119.0 |
C21—C22—H22C | 109.5 | C74—C73—H73 | 119.0 |
H22A—C22—H22C | 109.5 | C75—C74—C73 | 117.74 (18) |
H22B—C22—H22C | 109.5 | C75—C74—C77 | 121.18 (19) |
C46B—C41—C42B | 119.2 (3) | C73—C74—C77 | 121.1 (2) |
C46A—C41—C42A | 120.0 (3) | C74—C75—C76 | 120.99 (18) |
C46A—C41—C4 | 124.4 (2) | C74—C75—H75 | 119.5 |
C46B—C41—C4 | 125.2 (2) | C76—C75—H75 | 119.5 |
C42B—C41—C4 | 115.4 (2) | C75—C76—C71 | 121.03 (19) |
C42A—C41—C4 | 115.6 (2) | C75—C76—H76 | 119.5 |
C43B—C44—C45B | 120.6 (3) | C71—C76—H76 | 119.5 |
C45A—C44—C43A | 119.7 (3) | C74—C77—H77A | 109.5 |
C43B—C44—H44 | 119.7 | C74—C77—H77B | 109.5 |
C45A—C44—H44 | 122.5 | H77A—C77—H77B | 109.5 |
C45B—C44—H44 | 119.7 | C74—C77—H77C | 109.5 |
C43A—C44—H44 | 117.5 | H77A—C77—H77C | 109.5 |
C43A—C42A—C41 | 118.9 (3) | H77B—C77—H77C | 109.5 |
C4—N5—N6—C7 | 177.08 (16) | N5—C4—C41—C42A | 159.0 (2) |
C8A—N5—N6—C7 | 0.38 (18) | C46A—C41—C42A—C43A | −7.1 (5) |
C8A—N1—C2—N3 | −1.1 (3) | C46B—C41—C42A—C43A | −40.8 (4) |
C8A—N1—C2—S2 | 179.74 (12) | C42B—C41—C42A—C43A | 74.6 (4) |
C4—N3—C2—N1 | 0.7 (3) | C4—C41—C42A—C43A | 175.7 (3) |
C4—N3—C2—S2 | 179.91 (13) | C41—C42A—C43A—C44 | 2.4 (5) |
C21—S2—C2—N1 | −0.74 (16) | C45A—C44—C43A—C42A | 1.8 (5) |
C21—S2—C2—N3 | 179.98 (12) | C43A—C44—C45A—C46A | −1.5 (5) |
C2—N3—C4—N5 | 1.6 (2) | C42A—C41—C46A—C45A | 7.5 (6) |
C2—N3—C4—C41 | −177.15 (15) | C4—C41—C46A—C45A | −175.5 (3) |
N6—N5—C4—N3 | −179.81 (15) | C44—C45A—C46A—C41 | −3.2 (6) |
C8A—N5—C4—N3 | −3.4 (2) | C46B—C41—C42B—C43B | 8.1 (5) |
N6—N5—C4—C41 | −1.1 (3) | C4—C41—C42B—C43B | −177.0 (3) |
C8A—N5—C4—C41 | 175.37 (15) | C45A—C44—C43B—C42B | −39.1 (4) |
N5—N6—C7—C8 | −0.73 (19) | C45B—C44—C43B—C42B | −2.2 (5) |
N5—N6—C7—C71 | 179.84 (14) | C41—C42B—C43B—C44 | −2.3 (5) |
N6—C7—C8—C8A | 0.8 (2) | C43B—C44—C45B—C46B | 1.1 (5) |
C71—C7—C8—C8A | −179.81 (16) | C42B—C41—C46B—C45B | −9.3 (5) |
C2—N1—C8A—C8 | 179.07 (18) | C4—C41—C46B—C45B | 176.3 (3) |
C2—N1—C8A—N5 | −0.7 (2) | C44—C45B—C46B—C41 | 4.8 (6) |
C7—C8—C8A—N1 | 179.66 (18) | N6—C7—C71—C72 | −10.2 (3) |
C7—C8—C8A—N5 | −0.52 (19) | C8—C7—C71—C72 | 170.43 (18) |
N6—N5—C8A—N1 | 179.95 (15) | N6—C7—C71—C76 | 169.48 (17) |
C4—N5—C8A—N1 | 3.0 (2) | C8—C7—C71—C76 | −9.8 (3) |
N6—N5—C8A—C8 | 0.10 (19) | C76—C71—C72—C73 | −0.4 (3) |
C4—N5—C8A—C8 | −176.90 (15) | C7—C71—C72—C73 | 179.32 (19) |
C2—S2—C21—C22 | 177.01 (12) | C71—C72—C73—C74 | −0.9 (3) |
N3—C4—C41—C46A | 160.6 (3) | C72—C73—C74—C75 | 1.7 (3) |
N5—C4—C41—C46A | −18.1 (4) | C72—C73—C74—C77 | −177.9 (2) |
N3—C4—C41—C46B | −158.0 (3) | C73—C74—C75—C76 | −1.3 (3) |
N5—C4—C41—C46B | 23.3 (3) | C77—C74—C75—C76 | 178.4 (2) |
N3—C4—C41—C42B | 27.4 (3) | C74—C75—C76—C71 | 0.1 (3) |
N5—C4—C41—C42B | −151.3 (2) | C72—C71—C76—C75 | 0.8 (3) |
N3—C4—C41—C42A | −22.2 (3) | C7—C71—C76—C75 | −178.93 (17) |
C19H15ClN4S | F(000) = 760 |
Mr = 366.86 | Dx = 1.459 Mg m−3 |
Monoclinic, P21/c | Melting point: 407 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 11.829 (1) Å | Cell parameters from 3822 reflections |
b = 7.5703 (5) Å | θ = 4.2–27.5° |
c = 19.5297 (5) Å | µ = 0.36 mm−1 |
β = 107.200 (3)° | T = 120 K |
V = 1670.61 (18) Å3 | Plate, colourless |
Z = 4 | 0.56 × 0.34 × 0.05 mm |
Bruker–Nonius KappaCCD diffractometer | 3822 independent reflections |
Radiation source: Bruker-Nonius FR591 rotating anode | 2968 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
Detector resolution: 9.091 pixels mm-1 | θmax = 27.5°, θmin = 4.2° |
ϕ & ω scans | h = −15→15 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | k = −9→9 |
Tmin = 0.822, Tmax = 0.982 | l = −25→25 |
37866 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.092 | H-atom parameters constrained |
S = 1.10 | w = 1/[σ2(Fo2) + (0.0328P)2 + 1.4467P] where P = (Fo2 + 2Fc2)/3 |
3822 reflections | (Δ/σ)max = 0.001 |
227 parameters | Δρmax = 0.29 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
C19H15ClN4S | V = 1670.61 (18) Å3 |
Mr = 366.86 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.829 (1) Å | µ = 0.36 mm−1 |
b = 7.5703 (5) Å | T = 120 K |
c = 19.5297 (5) Å | 0.56 × 0.34 × 0.05 mm |
β = 107.200 (3)° |
Bruker–Nonius KappaCCD diffractometer | 3822 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2968 reflections with I > 2σ(I) |
Tmin = 0.822, Tmax = 0.982 | Rint = 0.039 |
37866 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.092 | H-atom parameters constrained |
S = 1.10 | Δρmax = 0.29 e Å−3 |
3822 reflections | Δρmin = −0.34 e Å−3 |
227 parameters |
x | y | z | Uiso*/Ueq | ||
Cl74 | 0.30933 (4) | 1.48852 (6) | 0.73815 (3) | 0.02895 (13) | |
S2 | 0.11011 (4) | 0.15742 (6) | 0.38792 (2) | 0.02328 (12) | |
N1 | 0.11559 (13) | 0.4691 (2) | 0.45226 (8) | 0.0196 (3) | |
N3 | 0.29107 (13) | 0.29190 (19) | 0.48366 (7) | 0.0191 (3) | |
N5 | 0.29545 (12) | 0.56219 (19) | 0.53887 (7) | 0.0171 (3) | |
N6 | 0.34053 (13) | 0.70054 (19) | 0.58327 (7) | 0.0182 (3) | |
C2 | 0.17618 (15) | 0.3284 (2) | 0.44699 (9) | 0.0182 (3) | |
C4 | 0.35187 (15) | 0.4096 (2) | 0.52928 (9) | 0.0171 (3) | |
C7 | 0.24957 (15) | 0.8130 (2) | 0.57227 (9) | 0.0179 (3) | |
C8 | 0.14656 (15) | 0.7511 (2) | 0.52129 (9) | 0.0201 (4) | |
C8A | 0.17681 (15) | 0.5898 (2) | 0.50008 (9) | 0.0182 (3) | |
C21 | −0.02137 (15) | 0.2667 (2) | 0.33248 (9) | 0.0207 (4) | |
C22 | 0.00496 (17) | 0.3957 (3) | 0.28002 (10) | 0.0253 (4) | |
C41 | 0.47747 (15) | 0.3725 (2) | 0.56738 (9) | 0.0184 (3) | |
C42 | 0.52485 (16) | 0.2186 (2) | 0.54762 (10) | 0.0236 (4) | |
C43 | 0.64089 (17) | 0.1712 (2) | 0.58079 (10) | 0.0253 (4) | |
C44 | 0.71193 (16) | 0.2774 (3) | 0.63389 (10) | 0.0236 (4) | |
C45 | 0.66627 (17) | 0.4298 (3) | 0.65377 (10) | 0.0273 (4) | |
C46 | 0.54960 (16) | 0.4785 (3) | 0.62090 (10) | 0.0245 (4) | |
C71 | 0.26470 (15) | 0.9795 (2) | 0.61253 (9) | 0.0179 (3) | |
C72 | 0.37400 (15) | 1.0255 (2) | 0.66016 (9) | 0.0200 (4) | |
C73 | 0.38800 (16) | 1.1816 (2) | 0.69867 (9) | 0.0217 (4) | |
C74 | 0.29183 (16) | 1.2929 (2) | 0.68918 (9) | 0.0205 (4) | |
C75 | 0.18241 (16) | 1.2523 (2) | 0.64193 (10) | 0.0226 (4) | |
C76 | 0.16963 (16) | 1.0946 (2) | 0.60436 (9) | 0.0218 (4) | |
H8 | 0.0720 | 0.8087 | 0.5050 | 0.024* | |
H21A | −0.0776 | 0.1764 | 0.3055 | 0.025* | |
H21B | −0.0600 | 0.3307 | 0.3637 | 0.025* | |
H22A | 0.0435 | 0.3333 | 0.2490 | 0.038* | |
H22B | 0.0576 | 0.4888 | 0.3065 | 0.038* | |
H22C | −0.0691 | 0.4487 | 0.2506 | 0.038* | |
H42 | 0.4767 | 0.1456 | 0.5109 | 0.028* | |
H43 | 0.6719 | 0.0656 | 0.5671 | 0.030* | |
H44 | 0.7919 | 0.2454 | 0.6566 | 0.028* | |
H45 | 0.7151 | 0.5025 | 0.6904 | 0.033* | |
H46 | 0.5190 | 0.5840 | 0.6349 | 0.029* | |
H72 | 0.4397 | 0.9486 | 0.6662 | 0.024* | |
H73 | 0.4626 | 1.2118 | 0.7312 | 0.026* | |
H75 | 0.1174 | 1.3308 | 0.6354 | 0.027* | |
H76 | 0.0946 | 1.0643 | 0.5724 | 0.026* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl74 | 0.0253 (2) | 0.0254 (2) | 0.0348 (3) | −0.00032 (19) | 0.00681 (19) | −0.01148 (19) |
S2 | 0.0218 (2) | 0.0192 (2) | 0.0246 (2) | 0.00180 (18) | 0.00026 (17) | −0.00373 (18) |
N1 | 0.0169 (7) | 0.0203 (7) | 0.0202 (7) | 0.0013 (6) | 0.0034 (6) | −0.0016 (6) |
N3 | 0.0185 (7) | 0.0192 (7) | 0.0187 (7) | 0.0012 (6) | 0.0043 (6) | 0.0015 (6) |
N5 | 0.0177 (7) | 0.0163 (7) | 0.0169 (7) | 0.0007 (6) | 0.0044 (6) | 0.0002 (6) |
N6 | 0.0187 (7) | 0.0165 (7) | 0.0185 (7) | 0.0010 (6) | 0.0040 (6) | −0.0017 (6) |
C2 | 0.0199 (8) | 0.0183 (8) | 0.0162 (8) | −0.0003 (7) | 0.0049 (7) | 0.0010 (7) |
C4 | 0.0189 (8) | 0.0175 (8) | 0.0163 (8) | 0.0019 (7) | 0.0073 (7) | 0.0028 (7) |
C7 | 0.0174 (8) | 0.0189 (8) | 0.0176 (8) | 0.0013 (7) | 0.0056 (7) | 0.0025 (7) |
C8 | 0.0172 (8) | 0.0213 (9) | 0.0199 (8) | 0.0036 (7) | 0.0023 (7) | 0.0002 (7) |
C8A | 0.0150 (8) | 0.0217 (8) | 0.0174 (8) | 0.0009 (7) | 0.0040 (7) | 0.0013 (7) |
C21 | 0.0182 (8) | 0.0212 (9) | 0.0206 (8) | −0.0001 (7) | 0.0026 (7) | −0.0019 (7) |
C22 | 0.0238 (9) | 0.0284 (10) | 0.0228 (9) | −0.0005 (8) | 0.0057 (7) | 0.0010 (8) |
C41 | 0.0179 (8) | 0.0212 (9) | 0.0160 (8) | 0.0012 (7) | 0.0051 (7) | 0.0039 (7) |
C42 | 0.0206 (9) | 0.0217 (9) | 0.0259 (9) | 0.0020 (7) | 0.0030 (7) | −0.0020 (8) |
C43 | 0.0230 (9) | 0.0213 (9) | 0.0306 (10) | 0.0056 (7) | 0.0064 (8) | 0.0011 (8) |
C44 | 0.0169 (8) | 0.0271 (9) | 0.0258 (9) | 0.0051 (7) | 0.0049 (7) | 0.0074 (8) |
C45 | 0.0200 (9) | 0.0321 (10) | 0.0252 (9) | 0.0007 (8) | −0.0005 (7) | −0.0044 (8) |
C46 | 0.0204 (9) | 0.0253 (9) | 0.0252 (9) | 0.0046 (7) | 0.0029 (7) | −0.0031 (8) |
C71 | 0.0195 (8) | 0.0196 (8) | 0.0150 (8) | 0.0006 (7) | 0.0058 (7) | 0.0017 (7) |
C72 | 0.0179 (8) | 0.0206 (9) | 0.0211 (8) | 0.0028 (7) | 0.0049 (7) | 0.0020 (7) |
C73 | 0.0180 (8) | 0.0241 (9) | 0.0208 (9) | −0.0010 (7) | 0.0024 (7) | 0.0001 (7) |
C74 | 0.0234 (9) | 0.0195 (8) | 0.0196 (8) | 0.0002 (7) | 0.0080 (7) | −0.0010 (7) |
C75 | 0.0197 (9) | 0.0227 (9) | 0.0251 (9) | 0.0035 (7) | 0.0063 (7) | −0.0010 (7) |
C76 | 0.0177 (8) | 0.0239 (9) | 0.0223 (9) | 0.0010 (7) | 0.0035 (7) | −0.0011 (7) |
Cl74—C74 | 1.7417 (18) | C41—C46 | 1.392 (2) |
S2—C2 | 1.7558 (17) | C41—C42 | 1.396 (2) |
S2—C21 | 1.8110 (18) | C42—C43 | 1.381 (3) |
N1—C2 | 1.305 (2) | C42—H42 | 0.95 |
N1—C8A | 1.354 (2) | C43—C44 | 1.383 (3) |
N3—C4 | 1.314 (2) | C43—H43 | 0.95 |
N3—C2 | 1.364 (2) | C44—C45 | 1.378 (3) |
N5—N6 | 1.3636 (19) | C44—H44 | 0.95 |
N5—C4 | 1.374 (2) | C45—C46 | 1.389 (3) |
N5—C8A | 1.399 (2) | C45—H45 | 0.95 |
N6—C7 | 1.339 (2) | C46—H46 | 0.95 |
C4—C41 | 1.479 (2) | C71—C76 | 1.394 (2) |
C7—C8 | 1.406 (2) | C71—C72 | 1.395 (2) |
C7—C71 | 1.468 (2) | C72—C73 | 1.384 (2) |
C8—C8A | 1.370 (2) | C72—H72 | 0.95 |
C8—H8 | 0.95 | C73—C74 | 1.384 (2) |
C21—C22 | 1.513 (3) | C73—H73 | 0.95 |
C21—H21A | 0.99 | C74—C75 | 1.384 (3) |
C21—H21B | 0.99 | C75—C76 | 1.386 (3) |
C22—H22A | 0.98 | C75—H75 | 0.95 |
C22—H22B | 0.98 | C76—H76 | 0.95 |
C22—H22C | 0.98 | ||
C2—S2—C21 | 101.12 (8) | C46—C41—C4 | 124.75 (16) |
C2—N1—C8A | 114.29 (15) | C42—C41—C4 | 116.45 (16) |
C4—N3—C2 | 118.64 (15) | C43—C42—C41 | 120.80 (17) |
N6—N5—C4 | 128.16 (14) | C43—C42—H42 | 119.6 |
N6—N5—C8A | 111.74 (13) | C41—C42—H42 | 119.6 |
C4—N5—C8A | 120.11 (14) | C42—C43—C44 | 119.99 (17) |
C7—N6—N5 | 104.00 (13) | C42—C43—H43 | 120.0 |
N1—C2—N3 | 127.52 (16) | C44—C43—H43 | 120.0 |
N1—C2—S2 | 120.35 (13) | C45—C44—C43 | 119.76 (17) |
N3—C2—S2 | 112.12 (12) | C45—C44—H44 | 120.1 |
N3—C4—N5 | 118.16 (15) | C43—C44—H44 | 120.1 |
N3—C4—C41 | 118.64 (15) | C44—C45—C46 | 120.70 (18) |
N5—C4—C41 | 123.20 (15) | C44—C45—H45 | 119.7 |
N6—C7—C8 | 112.87 (15) | C46—C45—H45 | 119.7 |
N6—C7—C71 | 119.68 (15) | C45—C46—C41 | 119.95 (17) |
C8—C7—C71 | 127.45 (16) | C45—C46—H46 | 120.0 |
C8A—C8—C7 | 105.18 (15) | C41—C46—H46 | 120.0 |
C8A—C8—H8 | 127.4 | C76—C71—C72 | 118.53 (16) |
C7—C8—H8 | 127.4 | C76—C71—C7 | 120.58 (16) |
N1—C8A—C8 | 132.53 (16) | C72—C71—C7 | 120.89 (15) |
N1—C8A—N5 | 121.25 (15) | C73—C72—C71 | 120.92 (16) |
C8—C8A—N5 | 106.22 (15) | C73—C72—H72 | 119.5 |
C22—C21—S2 | 112.79 (13) | C71—C72—H72 | 119.5 |
C22—C21—H21A | 109.0 | C74—C73—C72 | 119.06 (16) |
S2—C21—H21A | 109.0 | C74—C73—H73 | 120.5 |
C22—C21—H21B | 109.0 | C72—C73—H73 | 120.5 |
S2—C21—H21B | 109.0 | C73—C74—C75 | 121.58 (17) |
H21A—C21—H21B | 107.8 | C73—C74—Cl74 | 119.01 (14) |
C21—C22—H22A | 109.5 | C75—C74—Cl74 | 119.41 (14) |
C21—C22—H22B | 109.5 | C74—C75—C76 | 118.60 (17) |
H22A—C22—H22B | 109.5 | C74—C75—H75 | 120.7 |
C21—C22—H22C | 109.5 | C76—C75—H75 | 120.7 |
H22A—C22—H22C | 109.5 | C75—C76—C71 | 121.30 (17) |
H22B—C22—H22C | 109.5 | C75—C76—H76 | 119.3 |
C46—C41—C42 | 118.80 (16) | C71—C76—H76 | 119.3 |
C4—N5—N6—C7 | −179.82 (16) | N3—C4—C41—C46 | −174.86 (17) |
C8A—N5—N6—C7 | 0.40 (18) | N5—C4—C41—C46 | 5.6 (3) |
C8A—N1—C2—N3 | 0.1 (3) | N3—C4—C41—C42 | 4.7 (2) |
C8A—N1—C2—S2 | 179.52 (12) | N5—C4—C41—C42 | −174.88 (16) |
C4—N3—C2—N1 | −1.2 (3) | C46—C41—C42—C43 | 0.5 (3) |
C4—N3—C2—S2 | 179.26 (12) | C4—C41—C42—C43 | −179.10 (17) |
C21—S2—C2—N1 | 15.00 (16) | C41—C42—C43—C44 | −0.5 (3) |
C21—S2—C2—N3 | −165.47 (12) | C42—C43—C44—C45 | 0.4 (3) |
C2—N3—C4—N5 | 1.4 (2) | C43—C44—C45—C46 | −0.2 (3) |
C2—N3—C4—C41 | −178.15 (14) | C44—C45—C46—C41 | 0.2 (3) |
N6—N5—C4—N3 | 179.61 (15) | C42—C41—C46—C45 | −0.3 (3) |
C8A—N5—C4—N3 | −0.6 (2) | C4—C41—C46—C45 | 179.25 (17) |
N6—N5—C4—C41 | −0.8 (3) | N6—C7—C71—C76 | −176.97 (16) |
C8A—N5—C4—C41 | 178.93 (15) | C8—C7—C71—C76 | 2.4 (3) |
N5—N6—C7—C8 | −0.40 (19) | N6—C7—C71—C72 | 2.5 (2) |
N5—N6—C7—C71 | 179.04 (14) | C8—C7—C71—C72 | −178.13 (17) |
N6—C7—C8—C8A | 0.2 (2) | C76—C71—C72—C73 | 0.2 (3) |
C71—C7—C8—C8A | −179.14 (16) | C7—C71—C72—C73 | −179.33 (16) |
C2—N1—C8A—C8 | −179.84 (18) | C71—C72—C73—C74 | −0.3 (3) |
C2—N1—C8A—N5 | 0.8 (2) | C72—C73—C74—C75 | −0.3 (3) |
C7—C8—C8A—N1 | −179.42 (18) | C72—C73—C74—Cl74 | 179.56 (13) |
C7—C8—C8A—N5 | 0.01 (18) | C73—C74—C75—C76 | 1.0 (3) |
N6—N5—C8A—N1 | 179.25 (14) | Cl74—C74—C75—C76 | −178.89 (14) |
C4—N5—C8A—N1 | −0.5 (2) | C74—C75—C76—C71 | −1.1 (3) |
N6—N5—C8A—C8 | −0.26 (19) | C72—C71—C76—C75 | 0.5 (3) |
C4—N5—C8A—C8 | 179.94 (14) | C7—C71—C76—C75 | −179.97 (16) |
C2—S2—C21—C22 | 74.19 (14) |
C19H14Cl2N4S | F(000) = 824 |
Mr = 401.30 | Dx = 1.506 Mg m−3 |
Monoclinic, P21/n | Melting point: 431 K |
Hall symbol: -P 2yn | Mo Kα radiation, λ = 0.71073 Å |
a = 7.7117 (4) Å | Cell parameters from 4039 reflections |
b = 8.3261 (10) Å | θ = 3.8–27.5° |
c = 27.678 (3) Å | µ = 0.50 mm−1 |
β = 94.978 (5)° | T = 120 K |
V = 1770.5 (3) Å3 | Block, colourless |
Z = 4 | 0.47 × 0.24 × 0.14 mm |
Bruker–Nonius KappaCCD diffractometer | 4039 independent reflections |
Radiation source: Bruker-Nonius FR591 rotating anode | 2513 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.074 |
Detector resolution: 9.091 pixels mm-1 | θmax = 27.5°, θmin = 3.8° |
ϕ & ω scans | h = −10→9 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | k = −10→10 |
Tmin = 0.801, Tmax = 0.934 | l = −35→35 |
39992 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.055 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.155 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0669P)2 + 2.3365P] where P = (Fo2 + 2Fc2)/3 |
4039 reflections | (Δ/σ)max = 0.001 |
236 parameters | Δρmax = 0.49 e Å−3 |
0 restraints | Δρmin = −0.50 e Å−3 |
C19H14Cl2N4S | V = 1770.5 (3) Å3 |
Mr = 401.30 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.7117 (4) Å | µ = 0.50 mm−1 |
b = 8.3261 (10) Å | T = 120 K |
c = 27.678 (3) Å | 0.47 × 0.24 × 0.14 mm |
β = 94.978 (5)° |
Bruker–Nonius KappaCCD diffractometer | 4039 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2513 reflections with I > 2σ(I) |
Tmin = 0.801, Tmax = 0.934 | Rint = 0.074 |
39992 measured reflections |
R[F2 > 2σ(F2)] = 0.055 | 0 restraints |
wR(F2) = 0.155 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.49 e Å−3 |
4039 reflections | Δρmin = −0.50 e Å−3 |
236 parameters |
x | y | z | Uiso*/Ueq | ||
Cl44 | 0.53273 (13) | 1.12947 (11) | 0.60946 (4) | 0.0411 (3) | |
Cl74 | 0.22872 (11) | 0.40819 (10) | 0.24961 (3) | 0.0321 (2) | |
S2 | 0.04836 (12) | 0.15969 (10) | 0.66827 (3) | 0.0309 (2) | |
N1 | 0.0733 (4) | 0.1695 (3) | 0.57532 (9) | 0.0266 (6) | |
N3 | 0.1761 (3) | 0.4036 (3) | 0.61961 (9) | 0.0246 (6) | |
N5 | 0.1896 (3) | 0.3984 (3) | 0.53699 (9) | 0.0232 (6) | |
N6 | 0.2241 (3) | 0.4522 (3) | 0.49218 (9) | 0.0261 (6) | |
C2 | 0.1072 (4) | 0.2537 (4) | 0.61535 (11) | 0.0247 (7) | |
C4 | 0.2173 (4) | 0.4770 (4) | 0.58032 (11) | 0.0226 (7) | |
C7 | 0.1756 (4) | 0.3309 (4) | 0.46263 (11) | 0.0231 (7) | |
C8 | 0.1101 (4) | 0.1987 (4) | 0.48683 (12) | 0.0267 (7) | |
C8A | 0.1188 (4) | 0.2430 (4) | 0.53469 (11) | 0.0246 (7) | |
C21 | 0.1133 (4) | 0.3048 (4) | 0.71493 (12) | 0.0309 (8) | |
C22 | 0.3047 (5) | 0.3023 (5) | 0.73139 (14) | 0.0416 (9) | |
C41 | 0.2931 (4) | 0.6389 (4) | 0.58507 (11) | 0.0232 (7) | |
C42 | 0.3323 (5) | 0.6989 (4) | 0.63179 (12) | 0.0305 (8) | |
C43 | 0.4045 (4) | 0.8488 (4) | 0.63955 (12) | 0.0319 (8) | |
C44 | 0.4367 (4) | 0.9424 (4) | 0.60021 (12) | 0.0294 (8) | |
C45 | 0.3941 (5) | 0.8896 (4) | 0.55373 (13) | 0.0373 (9) | |
C46 | 0.3246 (5) | 0.7378 (4) | 0.54619 (13) | 0.0329 (8) | |
C71 | 0.1915 (4) | 0.3480 (4) | 0.41023 (11) | 0.0236 (7) | |
C72 | 0.2596 (4) | 0.4885 (4) | 0.39204 (12) | 0.0284 (7) | |
C73 | 0.2706 (4) | 0.5079 (4) | 0.34288 (12) | 0.0282 (7) | |
C74 | 0.2146 (4) | 0.3844 (4) | 0.31188 (11) | 0.0244 (7) | |
C75 | 0.1490 (4) | 0.2433 (4) | 0.32887 (12) | 0.0286 (8) | |
C76 | 0.1372 (4) | 0.2263 (4) | 0.37806 (12) | 0.0265 (7) | |
H8 | 0.0687 | 0.0999 | 0.4730 | 0.032* | |
H21A | 0.0819 | 0.4135 | 0.7026 | 0.037* | |
H21B | 0.0466 | 0.2843 | 0.7433 | 0.037* | |
H22A | 0.3718 | 0.3312 | 0.7042 | 0.062* | |
H22B | 0.3380 | 0.1944 | 0.7429 | 0.062* | |
H22C | 0.3287 | 0.3797 | 0.7578 | 0.062* | |
H42 | 0.3086 | 0.6349 | 0.6589 | 0.037* | |
H43 | 0.4319 | 0.8873 | 0.6716 | 0.038* | |
H45 | 0.4123 | 0.9570 | 0.5269 | 0.045* | |
H46 | 0.2979 | 0.7002 | 0.5140 | 0.040* | |
H72 | 0.2988 | 0.5719 | 0.4137 | 0.034* | |
H73 | 0.3158 | 0.6043 | 0.3305 | 0.034* | |
H75 | 0.1125 | 0.1592 | 0.3071 | 0.034* | |
H76 | 0.0912 | 0.1299 | 0.3901 | 0.032* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl44 | 0.0467 (6) | 0.0273 (5) | 0.0496 (6) | −0.0131 (4) | 0.0052 (4) | −0.0066 (4) |
Cl74 | 0.0413 (5) | 0.0331 (5) | 0.0230 (4) | −0.0003 (4) | 0.0088 (3) | 0.0005 (3) |
S2 | 0.0435 (6) | 0.0257 (5) | 0.0241 (4) | −0.0081 (4) | 0.0062 (4) | −0.0008 (3) |
N1 | 0.0339 (16) | 0.0232 (15) | 0.0226 (14) | −0.0047 (12) | 0.0028 (12) | 0.0005 (11) |
N3 | 0.0280 (15) | 0.0212 (14) | 0.0247 (14) | −0.0016 (12) | 0.0036 (11) | 0.0003 (11) |
N5 | 0.0298 (15) | 0.0199 (13) | 0.0199 (13) | −0.0026 (11) | 0.0032 (11) | −0.0009 (11) |
N6 | 0.0315 (15) | 0.0241 (14) | 0.0222 (14) | −0.0032 (12) | 0.0003 (11) | 0.0008 (11) |
C2 | 0.0256 (18) | 0.0249 (17) | 0.0238 (17) | 0.0001 (14) | 0.0028 (13) | −0.0006 (13) |
C4 | 0.0233 (17) | 0.0221 (16) | 0.0222 (16) | 0.0017 (13) | 0.0004 (13) | −0.0002 (13) |
C7 | 0.0231 (17) | 0.0217 (16) | 0.0239 (16) | −0.0031 (13) | −0.0006 (13) | −0.0002 (13) |
C8 | 0.0319 (19) | 0.0212 (17) | 0.0270 (17) | −0.0066 (14) | 0.0024 (14) | −0.0035 (13) |
C8A | 0.0279 (18) | 0.0203 (16) | 0.0258 (17) | −0.0031 (13) | 0.0028 (14) | −0.0001 (13) |
C21 | 0.036 (2) | 0.0332 (19) | 0.0237 (17) | −0.0018 (16) | 0.0059 (14) | −0.0034 (14) |
C22 | 0.038 (2) | 0.045 (2) | 0.040 (2) | 0.0008 (18) | −0.0042 (17) | −0.0019 (18) |
C41 | 0.0216 (16) | 0.0218 (17) | 0.0265 (16) | −0.0021 (13) | 0.0033 (13) | −0.0014 (13) |
C42 | 0.037 (2) | 0.0243 (17) | 0.0299 (18) | −0.0023 (15) | 0.0035 (15) | 0.0014 (14) |
C43 | 0.037 (2) | 0.0306 (19) | 0.0282 (18) | −0.0041 (16) | 0.0018 (15) | −0.0053 (15) |
C44 | 0.0298 (19) | 0.0219 (17) | 0.0362 (19) | −0.0017 (14) | 0.0012 (15) | −0.0050 (14) |
C45 | 0.046 (2) | 0.0303 (19) | 0.036 (2) | −0.0108 (17) | 0.0088 (17) | 0.0030 (16) |
C46 | 0.043 (2) | 0.0262 (18) | 0.0297 (19) | −0.0108 (16) | 0.0034 (16) | −0.0047 (15) |
C71 | 0.0249 (17) | 0.0222 (16) | 0.0235 (16) | −0.0006 (13) | 0.0013 (13) | −0.0024 (13) |
C72 | 0.0347 (19) | 0.0245 (17) | 0.0254 (17) | −0.0034 (15) | −0.0006 (14) | −0.0030 (14) |
C73 | 0.0336 (19) | 0.0230 (17) | 0.0280 (17) | −0.0021 (15) | 0.0016 (14) | 0.0033 (14) |
C74 | 0.0265 (17) | 0.0236 (17) | 0.0235 (16) | 0.0041 (13) | 0.0047 (13) | −0.0007 (13) |
C75 | 0.036 (2) | 0.0219 (17) | 0.0275 (18) | 0.0016 (14) | 0.0008 (15) | −0.0034 (14) |
C76 | 0.0301 (18) | 0.0228 (17) | 0.0266 (17) | −0.0019 (14) | 0.0028 (14) | 0.0009 (14) |
Cl44—C44 | 1.734 (3) | C22—H22C | 0.98 |
Cl74—C74 | 1.748 (3) | C41—C46 | 1.393 (5) |
S2—C2 | 1.755 (3) | C41—C42 | 1.395 (4) |
S2—C21 | 1.807 (3) | C42—C43 | 1.376 (5) |
N1—C2 | 1.318 (4) | C42—H42 | 0.95 |
N1—C8A | 1.353 (4) | C43—C44 | 1.379 (5) |
N3—C4 | 1.310 (4) | C43—H43 | 0.95 |
N3—C2 | 1.358 (4) | C44—C45 | 1.372 (5) |
N5—N6 | 1.366 (3) | C45—C46 | 1.382 (5) |
N5—C4 | 1.366 (4) | C45—H45 | 0.95 |
N5—C8A | 1.403 (4) | C46—H46 | 0.95 |
N6—C7 | 1.333 (4) | C71—C76 | 1.389 (4) |
C4—C41 | 1.471 (4) | C71—C72 | 1.394 (5) |
C7—C8 | 1.405 (4) | C72—C73 | 1.380 (4) |
C7—C71 | 1.473 (4) | C72—H72 | 0.95 |
C8—C8A | 1.371 (4) | C73—C74 | 1.384 (5) |
C8—H8 | 0.95 | C73—H73 | 0.95 |
C21—C22 | 1.506 (5) | C74—C75 | 1.378 (5) |
C21—H21A | 0.99 | C75—C76 | 1.379 (4) |
C21—H21B | 0.99 | C75—H75 | 0.95 |
C22—H22A | 0.98 | C76—H76 | 0.95 |
C22—H22B | 0.98 | ||
C2—S2—C21 | 102.87 (16) | C46—C41—C4 | 124.6 (3) |
C2—N1—C8A | 114.3 (3) | C42—C41—C4 | 117.6 (3) |
C4—N3—C2 | 118.5 (3) | C43—C42—C41 | 121.5 (3) |
N6—N5—C4 | 127.7 (3) | C43—C42—H42 | 119.3 |
N6—N5—C8A | 111.5 (2) | C41—C42—H42 | 119.3 |
C4—N5—C8A | 120.8 (3) | C42—C43—C44 | 119.2 (3) |
C7—N6—N5 | 104.0 (2) | C42—C43—H43 | 120.4 |
N1—C2—N3 | 127.6 (3) | C44—C43—H43 | 120.4 |
N1—C2—S2 | 114.7 (2) | C45—C44—C43 | 121.0 (3) |
N3—C2—S2 | 117.7 (2) | C45—C44—Cl44 | 119.4 (3) |
N3—C4—N5 | 118.3 (3) | C43—C44—Cl44 | 119.7 (3) |
N3—C4—C41 | 118.4 (3) | C44—C45—C46 | 119.5 (3) |
N5—C4—C41 | 123.2 (3) | C44—C45—H45 | 120.2 |
N6—C7—C8 | 113.2 (3) | C46—C45—H45 | 120.2 |
N6—C7—C71 | 119.2 (3) | C45—C46—C41 | 121.0 (3) |
C8—C7—C71 | 127.5 (3) | C45—C46—H46 | 119.5 |
C8A—C8—C7 | 105.1 (3) | C41—C46—H46 | 119.5 |
C8A—C8—H8 | 127.5 | C76—C71—C72 | 118.8 (3) |
C7—C8—H8 | 127.5 | C76—C71—C7 | 121.0 (3) |
N1—C8A—C8 | 133.4 (3) | C72—C71—C7 | 120.2 (3) |
N1—C8A—N5 | 120.5 (3) | C73—C72—C71 | 120.8 (3) |
C8—C8A—N5 | 106.2 (3) | C73—C72—H72 | 119.6 |
C22—C21—S2 | 114.2 (3) | C71—C72—H72 | 119.6 |
C22—C21—H21A | 108.7 | C72—C73—C74 | 118.8 (3) |
S2—C21—H21A | 108.7 | C72—C73—H73 | 120.6 |
C22—C21—H21B | 108.7 | C74—C73—H73 | 120.6 |
S2—C21—H21B | 108.7 | C75—C74—C73 | 121.7 (3) |
H21A—C21—H21B | 107.6 | C75—C74—Cl74 | 119.3 (2) |
C21—C22—H22A | 109.5 | C73—C74—Cl74 | 119.0 (2) |
C21—C22—H22B | 109.5 | C74—C75—C76 | 118.8 (3) |
H22A—C22—H22B | 109.5 | C74—C75—H75 | 120.6 |
C21—C22—H22C | 109.5 | C76—C75—H75 | 120.6 |
H22A—C22—H22C | 109.5 | C75—C76—C71 | 121.1 (3) |
H22B—C22—H22C | 109.5 | C75—C76—H76 | 119.5 |
C46—C41—C42 | 117.8 (3) | C71—C76—H76 | 119.5 |
C4—N5—N6—C7 | 179.3 (3) | N5—C4—C41—C46 | 8.4 (5) |
C8A—N5—N6—C7 | −0.2 (3) | N3—C4—C41—C42 | 6.1 (4) |
C8A—N1—C2—N3 | 2.1 (5) | N5—C4—C41—C42 | −173.2 (3) |
C8A—N1—C2—S2 | 179.9 (2) | C46—C41—C42—C43 | −1.9 (5) |
C4—N3—C2—N1 | −0.8 (5) | C4—C41—C42—C43 | 179.6 (3) |
C4—N3—C2—S2 | −178.6 (2) | C41—C42—C43—C44 | 0.8 (5) |
C21—S2—C2—N1 | 179.6 (2) | C42—C43—C44—C45 | 1.5 (5) |
C21—S2—C2—N3 | −2.3 (3) | C42—C43—C44—Cl44 | −178.4 (3) |
C2—N3—C4—N5 | −0.3 (4) | C43—C44—C45—C46 | −2.7 (6) |
C2—N3—C4—C41 | −179.5 (3) | Cl44—C44—C45—C46 | 177.2 (3) |
N6—N5—C4—N3 | −179.6 (3) | C44—C45—C46—C41 | 1.6 (6) |
C8A—N5—C4—N3 | −0.1 (4) | C42—C41—C46—C45 | 0.7 (5) |
N6—N5—C4—C41 | −0.3 (5) | C4—C41—C46—C45 | 179.1 (3) |
C8A—N5—C4—C41 | 179.2 (3) | N6—C7—C71—C76 | −177.9 (3) |
N5—N6—C7—C8 | 0.0 (4) | C8—C7—C71—C76 | 0.7 (5) |
N5—N6—C7—C71 | 178.8 (3) | N6—C7—C71—C72 | 1.2 (5) |
N6—C7—C8—C8A | 0.2 (4) | C8—C7—C71—C72 | 179.9 (3) |
C71—C7—C8—C8A | −178.5 (3) | C76—C71—C72—C73 | 1.0 (5) |
C2—N1—C8A—C8 | 178.6 (4) | C7—C71—C72—C73 | −178.2 (3) |
C2—N1—C8A—N5 | −2.3 (4) | C71—C72—C73—C74 | −0.7 (5) |
C7—C8—C8A—N1 | 178.9 (4) | C72—C73—C74—C75 | −0.2 (5) |
C7—C8—C8A—N5 | −0.3 (4) | C72—C73—C74—Cl74 | −179.9 (3) |
N6—N5—C8A—N1 | −179.0 (3) | C73—C74—C75—C76 | 0.8 (5) |
C4—N5—C8A—N1 | 1.4 (5) | Cl74—C74—C75—C76 | −179.5 (2) |
N6—N5—C8A—C8 | 0.3 (4) | C74—C75—C76—C71 | −0.5 (5) |
C4—N5—C8A—C8 | −179.2 (3) | C72—C71—C76—C75 | −0.3 (5) |
C2—S2—C21—C22 | −80.3 (3) | C7—C71—C76—C75 | 178.8 (3) |
N3—C4—C41—C46 | −172.4 (3) |
Experimental details
(I) | (II) | (III) | |
Crystal data | |||
Chemical formula | C20H18N4S | C19H15ClN4S | C19H14Cl2N4S |
Mr | 346.45 | 366.86 | 401.30 |
Crystal system, space group | Triclinic, P1 | Monoclinic, P21/c | Monoclinic, P21/n |
Temperature (K) | 120 | 120 | 120 |
a, b, c (Å) | 4.8076 (3), 11.6397 (5), 15.5010 (7) | 11.829 (1), 7.5703 (5), 19.5297 (5) | 7.7117 (4), 8.3261 (10), 27.678 (3) |
α, β, γ (°) | 92.164 (4), 96.217 (5), 100.087 (4) | 90, 107.200 (3), 90 | 90, 94.978 (5), 90 |
V (Å3) | 847.56 (8) | 1670.61 (18) | 1770.5 (3) |
Z | 2 | 4 | 4 |
Radiation type | Mo Kα | Mo Kα | Mo Kα |
µ (mm−1) | 0.20 | 0.36 | 0.50 |
Crystal size (mm) | 0.62 × 0.42 × 0.05 | 0.56 × 0.34 × 0.05 | 0.47 × 0.24 × 0.14 |
Data collection | |||
Diffractometer | Bruker–Nonius KappaCCD diffractometer | Bruker–Nonius KappaCCD diffractometer | Bruker–Nonius KappaCCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) | Multi-scan (SADABS; Sheldrick, 2003) | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.886, 0.990 | 0.822, 0.982 | 0.801, 0.934 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13384, 3861, 2858 | 37866, 3822, 2968 | 39992, 4039, 2513 |
Rint | 0.036 | 0.039 | 0.074 |
(sin θ/λ)max (Å−1) | 0.650 | 0.650 | 0.649 |
Refinement | |||
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.106, 1.07 | 0.036, 0.092, 1.10 | 0.055, 0.155, 1.06 |
No. of reflections | 3861 | 3822 | 4039 |
No. of parameters | 264 | 227 | 236 |
H-atom treatment | H-atom parameters constrained | H-atom parameters constrained | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.32, −0.31 | 0.29, −0.34 | 0.49, −0.50 |
Computer programs: COLLECT (Hooft, 1999), DIRAX/LSQ (Duisenberg et al., 2000), EVALCCD (Duisenberg et al., 2003), Sir2004 (Burla et al., 2005), OSCAIL (McArdle, 2003) and SHELXL97 (Sheldrick, 1997), PLATON (Spek, 2003), SHELXL97 and PRPKAPPA (Ferguson, 1999).
Parameter | (I) | (II) | (III) |
N1—C2 | 1.309 (2) | 1.305 (2) | 1.318 (4) |
C2—N3 | 1.368 (2) | 1.364 (2) | 1.358 (4) |
N3—C4 | 1.312 (2) | 1.314 (2) | 1.310 (4) |
C4—N5 | 1.368 (2) | 1.374 (2) | 1.366 (4) |
N5—N6 | 1.366 (2) | 1.3636 (19) | 1.366 (3) |
N6—C7 | 1.342 (2) | 1.339 (2) | 1.333 (4) |
C7—C8 | 1.404 (3) | 1.406 (2) | 1.405 (4) |
C8—C8A | 1.367 (2) | 1.370 (2) | 1.371 (4) |
C8A—N1 | 1.361 (2) | 1.354 (2) | 1.353 (4) |
N5—C8A | 1.402 (2) | 1.399 (2) | 1.403 (4) |
N1—C2—S2—C21 | -0.74 (16) | 15.00 (16) | 179.6 (2) |
C2—S2—C21—C22 | 177.01 (12) | 74.19 (14) | -80.3 (3) |
(triazine)/(C41–C46) | i | 4.78 (8) | 7.58 (15)(9) |
(pyrazole)/(C71–C76) | 10.20 (10) | 2.63 (9) | 2.52 (16) |
i These dihedral angles in compound (I) are 20.77 (13)° for one orientation of the disordered phenyl ring and 25.99 (13)° for the other. |
Compounds having a pyrazolo[1,5-a][1,3,5]triazine residue are of great interest in the treatment and prevention of central nervous system disorders (Bös et al., 1999), metabolic and peripheral disorders (Darrow et al., 2001), and Parkinson's and Alzheimer's diseases (Bös et al., 1999). Recently, a pyrazolotriazine derivative has been reported to be a powerful corticotrophin releasing factor type 1 (CFR1) receptor antagonist (He et al., 2000), playing an important role in modulating the endocrinal, autonomic and immune responses to stress (Kumar et al., 2004).
Pyrazolo[1,5-a][1,3,5]triazines can be readily synthesized from 5-aminopyrazoles and an appropriate biselectrophilic reagent (Insuasty et al., 2006). We report here the structure of three 4,7-diaryl-2-ethylsulfanylpyrazolo[1,5-a][1,3,5] triazines (Figs. 1–3), which were all obtained in good yields from the reactions of S,S-diethyl aroyliminodithiocarbonates with the appropriate 5-amino-3-arylpyrazoles (see scheme) using microwave radiation under solvent-free conditions.
Compounds (I)–(III) are all very similar in composition and constitution, but they show some marked differences both in molecular conformation and in crystal packing. Although analogous compounds containing 4-methylphenyl and 4-chlorophenyl substituents are often isomorphous and isostructural, no such similarities are apparent when compounds (I) and (II) are compared. These two compounds crystallize in different crystal systems with markedly different cell dimensions; in addition, compound (I) exhibits orientational disorder in the unsubstituted phenyl ring, while compound (II) is fully ordered; furthermore, the structure of (II) contains a π–π stacking interaction which is absent from the structure of (I).
The bond distances within the heterocyclic portions of compounds (I)–(III) do not differ significantly from one compound to another (Table 1); however, the values themselves show some interesting features. In each compound the N1—C2 and N3—C4 bonds are significantly shorter than any of the other C—N bonds, and the differences between the C7—C8 and C8—C8A bond distances, 0.034 (4)–0.037 (4) Å, are much less than the difference, ca 0.15 Å, between typical single and double bonds of this type (Allen et al., 1987). These observations are consistent with a measure of aromatic delocalization within the pyrazole ring, allied to strong bond fixation in the triazine ring, as opposed to the fully localized form (A) (see scheme). In compounds (I)–(III), the conformations of the ethylsulfanyl substituents are all different, as shown by the relevant torsion angles (Table 1): only in (I) are the non-H atoms of this substituent effectively coplanar with the adjacent triazine ring. The ring components in compounds (II) and (III) are almost coplanar, as shown by the dihedral angles (Table 1), but in compound (I), both of the aryl rings are displaced significantly further from the plane of the heterocyclic component than in either of (II) and (III).
There are no hydrogen bonds of any kind in the structures of compounds (I) and (II); however, in compounds (II) and (III), pairs of molecules are linked into centrosymmetric dimers by means of π–π stacking interactions. In compound (II), the triazine ring and the unsubstituted phenyl ring in a pair of molecules related by inversion make a dihedral angle of 4.8 (2)°. The interplanar spacing is ca 3.39 Å, and the corresponding centroid separation is 3.551 (2) Å (Fig. 4). In compound (III), the two independent rings of a centrosymmetrically related pair of molecules make a dihedral angle of 5.6 (2)°; here the interplanar spacing is ca 3.53 Å, with a ring-centroid separation of 3.711 (2) Å (Fig. 5). In neither orientation of the molecule of compound (I) are there any stacking interactions.