organic compounds
4-({[4-Amino-5-(4-chloroanilinomethyl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetyl)-3-(4-methoxyphenyl)-1,2,3-oxadiazol-3-ium-5-olate
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, and bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri, Mangalore 574 199, India
*Correspondence e-mail: hkfun@usm.my
In the title sydnone compound, C20H18ClN7O4S, the oxadiazole, triazole, chloro-substituted and methoxy-substituted phenyl rings are essentially planar, with maximum deviations of 0.007 (3), 0.009 (2), 0.017 (2) and 0.002 (3) Å, respectively. The dihedral angles between the chloro-substituted phenyl ring and the triazole ring, the triazole ring and the oxadiazole ring, and the oxadiazole ring and the methoxy-substituted phenyl ring are 80.02 (13), 85.68 (14) and 51.62 (14)°, respectively. In the crystal, molecules are connected via intermolecular N—H⋯N, N—H⋯O and C—H⋯O hydrogen bonds, forming sheets lying parallel to the ac plane.
Related literature
For details and biological applications of et al. (2008); Jyothi et al. (2008); Kalluraya et al. (2002). For bond-length data, see: Allen et al. (1987). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
see: RaiExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536810046155/rz2514sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810046155/rz2514Isup2.hkl
A catalytic amount of anhydrous sodium acetate was added to solution of 4-bromoacetyl-3-(p-anisyl)sydnone (0.01 mol) and 4-amino-5-(p-chlorophenyl) aminomethyl-4H-1,2,4-triazole-3-thiol (0.01 mol) in ethanol. The solution was stirred at room temperature for 2-3 hours. The solid product which separated was filtered and dried. It was then recrystallized from ethanol. Crystals suitable for X-ray analysis were obtained from a mixture of DMF and ethanol (1:2 v/v) by slow evaporation.
Atoms H1N6 and H2N6 were located in a difference Fourier map and refined freely [N–H = 0.86 (4)–0.92 (3) Å]. The remaining H atoms were positioned geometrically [C–H = 0.93 or 0.96 Å] and were refined using a riding model, with Uiso(H) = 1.2 Ueq(C) or 1.5 Ueq(C) fo methyl H atoms.
Sydnones are mesoionic heterocyclic aromatic compounds. The study of
still remains a field of interest because of their electronic structures and also because of the varied types of biological activities (Rai et al., 2008). Recently sydnone derivatives were found to exhibit promising antimicrobial properties (Kalluraya et al., 2002). Since their discovery, have shown diverse biological activities and it is thought that the meso-ionic nature of the sydnone ring promotes significant interactions with biological systems. Because of the wide variety of properties displayed by we were prompted to synthesize a new S-substituted triazoles containing a sydnone ring. Photochemical bromination of 3-aryl-4-acetylsydnone afforded 3-aryl-4 bromoacetylsydnones. Condensation of 3-substituted-4-amino-5-mecapto-1,2,4-triazoles with 3-aryl-4-bromoacetylsydnones yielded S-substituted triazoles derivatives (Jyothi et al., 2008).In the title compound, (Fig. 1), the rings A (C14–C19), B (N3/N4/N5/C11–C12), C (N1/N2/O1/C7–C8) and D (C1–C6) are essentially planar. The dihedral angle between the best planes of the rings are A/B = 80.02 (13)°, A/C = 53.76 (14)°, A/D = 5.24 (12)°, B/C = 85.68 (14)°, B/D = 85.12 (13)° and C/D = 51.62 (14)°. The bond lengths (Allen et al., 1987) and angles are normal.
In the
(Fig. 2), the molecules are connected via intermolecular N6—H1N6···N4, N7—H1N7···O3, N6—H2N6···O2 and C4—H4A···O4 hydrogen bonds to form two-dimensional networks parallel to the ac plane.For details and biological applications of
see: Rai et al. (2008); Jyothi et al. (2008); Kalluraya et al. (2002). For bond-length data, see: Allen et al. (1987). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).C20H18ClN7O4S | F(000) = 2016 |
Mr = 487.92 | Dx = 1.512 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2099 reflections |
a = 20.109 (3) Å | θ = 3.2–28.1° |
b = 5.8952 (8) Å | µ = 0.32 mm−1 |
c = 36.369 (5) Å | T = 100 K |
β = 96.076 (3)° | Plate, yellow |
V = 4287.2 (10) Å3 | 0.40 × 0.13 × 0.04 mm |
Z = 8 |
Bruker APEXII DUO CCD area-detector diffractometer | 4429 independent reflections |
Radiation source: fine-focus sealed tube | 3255 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.037 |
φ and ω scans | θmax = 26.5°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −25→25 |
Tmin = 0.883, Tmax = 0.989 | k = −7→7 |
8905 measured reflections | l = −34→45 |
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.132 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | w = 1/[σ2(Fo2) + (0.063P)2 + 1.4574P] where P = (Fo2 + 2Fc2)/3 |
4429 reflections | (Δ/σ)max < 0.001 |
311 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
C20H18ClN7O4S | V = 4287.2 (10) Å3 |
Mr = 487.92 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 20.109 (3) Å | µ = 0.32 mm−1 |
b = 5.8952 (8) Å | T = 100 K |
c = 36.369 (5) Å | 0.40 × 0.13 × 0.04 mm |
β = 96.076 (3)° |
Bruker APEXII DUO CCD area-detector diffractometer | 4429 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3255 reflections with I > 2σ(I) |
Tmin = 0.883, Tmax = 0.989 | Rint = 0.037 |
8905 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.132 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.33 e Å−3 |
4429 reflections | Δρmin = −0.35 e Å−3 |
311 parameters |
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K. |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes. |
Refinement. 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 > 2σ(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. |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.49815 (4) | 0.56466 (15) | 0.451234 (19) | 0.0463 (2) | |
S1 | 0.41984 (3) | 0.08369 (12) | 0.219978 (18) | 0.02935 (18) | |
O1 | 0.47596 (10) | 0.9335 (3) | 0.13290 (6) | 0.0453 (6) | |
O2 | 0.52595 (10) | 0.7437 (4) | 0.18278 (6) | 0.0484 (6) | |
O3 | 0.35348 (8) | 0.3013 (3) | 0.15066 (5) | 0.0322 (4) | |
O4 | 0.17845 (9) | 0.4831 (3) | 0.01486 (5) | 0.0349 (5) | |
N1 | 0.42244 (13) | 0.9057 (4) | 0.10652 (7) | 0.0404 (6) | |
N2 | 0.39537 (10) | 0.7121 (4) | 0.11473 (6) | 0.0280 (5) | |
N3 | 0.34474 (11) | 0.4519 (4) | 0.23488 (6) | 0.0266 (5) | |
N4 | 0.30066 (10) | 0.5097 (4) | 0.26070 (5) | 0.0251 (5) | |
N5 | 0.33599 (9) | 0.1657 (3) | 0.27278 (5) | 0.0198 (4) | |
N6 | 0.34284 (12) | −0.0438 (4) | 0.29125 (6) | 0.0254 (5) | |
H1N6 | 0.3216 (13) | −0.156 (5) | 0.2766 (7) | 0.023 (7)* | |
N7 | 0.26410 (11) | 0.5056 (4) | 0.33948 (6) | 0.0288 (5) | |
H1N7 | 0.2383 (17) | 0.621 (6) | 0.3370 (9) | 0.056 (11)* | |
C1 | 0.28726 (14) | 0.8080 (5) | 0.08290 (7) | 0.0332 (6) | |
H1A | 0.2903 | 0.9472 | 0.0950 | 0.040* | |
C2 | 0.23260 (13) | 0.7609 (5) | 0.05768 (7) | 0.0299 (6) | |
H2A | 0.1986 | 0.8669 | 0.0526 | 0.036* | |
C3 | 0.22975 (13) | 0.5494 (5) | 0.04003 (7) | 0.0282 (6) | |
C4 | 0.28062 (13) | 0.3919 (4) | 0.04767 (6) | 0.0260 (6) | |
H4A | 0.2779 | 0.2522 | 0.0357 | 0.031* | |
C5 | 0.33487 (13) | 0.4398 (4) | 0.07267 (6) | 0.0241 (5) | |
H5A | 0.3691 | 0.3347 | 0.0777 | 0.029* | |
C6 | 0.33718 (13) | 0.6490 (4) | 0.09012 (7) | 0.0262 (6) | |
C7 | 0.48223 (14) | 0.7465 (5) | 0.15758 (8) | 0.0374 (7) | |
C8 | 0.42757 (12) | 0.6031 (5) | 0.14469 (7) | 0.0290 (6) | |
C9 | 0.40503 (12) | 0.3965 (5) | 0.16192 (7) | 0.0271 (6) | |
C10 | 0.45183 (12) | 0.3144 (5) | 0.19467 (7) | 0.0335 (6) | |
H10A | 0.4618 | 0.4406 | 0.2115 | 0.040* | |
H10B | 0.4935 | 0.2668 | 0.1859 | 0.040* | |
C11 | 0.36414 (11) | 0.2442 (4) | 0.24269 (6) | 0.0237 (5) | |
C12 | 0.29609 (11) | 0.3372 (4) | 0.28250 (6) | 0.0206 (5) | |
C13 | 0.25244 (12) | 0.3233 (4) | 0.31341 (7) | 0.0260 (6) | |
H13A | 0.2059 | 0.3259 | 0.3031 | 0.031* | |
H13B | 0.2606 | 0.1801 | 0.3262 | 0.031* | |
C14 | 0.32161 (12) | 0.5235 (4) | 0.36322 (6) | 0.0214 (5) | |
C15 | 0.36909 (12) | 0.3484 (4) | 0.36751 (6) | 0.0218 (5) | |
H15A | 0.3640 | 0.2210 | 0.3524 | 0.026* | |
C16 | 0.42330 (12) | 0.3642 (5) | 0.39407 (6) | 0.0263 (6) | |
H16A | 0.4544 | 0.2471 | 0.3969 | 0.032* | |
C17 | 0.43145 (13) | 0.5526 (5) | 0.41640 (7) | 0.0285 (6) | |
C18 | 0.38641 (14) | 0.7303 (5) | 0.41185 (7) | 0.0315 (6) | |
H18A | 0.3927 | 0.8589 | 0.4266 | 0.038* | |
C19 | 0.33229 (13) | 0.7165 (4) | 0.38544 (7) | 0.0300 (6) | |
H19A | 0.3024 | 0.8370 | 0.3823 | 0.036* | |
C20 | 0.12571 (15) | 0.6392 (6) | 0.00442 (8) | 0.0426 (8) | |
H20A | 0.0941 | 0.5708 | −0.0139 | 0.064* | |
H20B | 0.1438 | 0.7737 | −0.0056 | 0.064* | |
H20C | 0.1037 | 0.6783 | 0.0257 | 0.064* | |
H2N6 | 0.3874 (13) | −0.066 (4) | 0.2955 (7) | 0.018 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0354 (4) | 0.0690 (6) | 0.0335 (4) | −0.0181 (4) | −0.0004 (3) | −0.0100 (4) |
S1 | 0.0262 (3) | 0.0321 (4) | 0.0290 (3) | 0.0061 (3) | −0.0005 (3) | −0.0056 (3) |
O1 | 0.0459 (12) | 0.0328 (12) | 0.0607 (14) | −0.0217 (10) | 0.0229 (11) | −0.0162 (11) |
O2 | 0.0299 (11) | 0.0598 (15) | 0.0570 (13) | −0.0188 (11) | 0.0115 (10) | −0.0279 (12) |
O3 | 0.0285 (10) | 0.0403 (11) | 0.0269 (9) | −0.0176 (9) | −0.0010 (7) | 0.0009 (8) |
O4 | 0.0395 (11) | 0.0384 (11) | 0.0266 (9) | 0.0133 (9) | 0.0019 (8) | 0.0056 (9) |
N1 | 0.0466 (15) | 0.0270 (13) | 0.0518 (15) | −0.0160 (12) | 0.0246 (12) | −0.0100 (12) |
N2 | 0.0323 (12) | 0.0208 (11) | 0.0340 (11) | −0.0107 (10) | 0.0181 (9) | −0.0083 (10) |
N3 | 0.0317 (12) | 0.0215 (11) | 0.0256 (11) | 0.0039 (10) | −0.0010 (9) | 0.0010 (9) |
N4 | 0.0309 (11) | 0.0180 (10) | 0.0252 (10) | 0.0023 (9) | −0.0022 (9) | −0.0002 (9) |
N5 | 0.0198 (10) | 0.0152 (10) | 0.0228 (9) | 0.0014 (8) | −0.0047 (8) | 0.0006 (8) |
N6 | 0.0299 (12) | 0.0157 (11) | 0.0287 (11) | 0.0060 (10) | −0.0061 (9) | 0.0027 (9) |
N7 | 0.0310 (12) | 0.0256 (12) | 0.0297 (12) | 0.0120 (11) | 0.0030 (9) | −0.0034 (10) |
C1 | 0.0452 (16) | 0.0207 (13) | 0.0380 (14) | 0.0020 (13) | 0.0245 (13) | −0.0018 (12) |
C2 | 0.0354 (14) | 0.0233 (13) | 0.0335 (13) | 0.0080 (12) | 0.0155 (12) | 0.0069 (12) |
C3 | 0.0364 (14) | 0.0297 (14) | 0.0203 (12) | 0.0029 (12) | 0.0119 (11) | 0.0058 (11) |
C4 | 0.0393 (15) | 0.0182 (12) | 0.0217 (12) | 0.0041 (11) | 0.0083 (10) | 0.0005 (10) |
C5 | 0.0325 (13) | 0.0168 (12) | 0.0244 (12) | 0.0007 (11) | 0.0089 (10) | 0.0021 (10) |
C6 | 0.0316 (14) | 0.0214 (13) | 0.0275 (12) | −0.0037 (11) | 0.0124 (10) | −0.0015 (11) |
C7 | 0.0308 (14) | 0.0361 (16) | 0.0482 (16) | −0.0155 (13) | 0.0181 (13) | −0.0211 (14) |
C8 | 0.0248 (13) | 0.0319 (15) | 0.0318 (13) | −0.0120 (12) | 0.0105 (11) | −0.0107 (12) |
C9 | 0.0238 (13) | 0.0324 (15) | 0.0261 (12) | −0.0059 (12) | 0.0077 (10) | −0.0105 (11) |
C10 | 0.0226 (13) | 0.0460 (17) | 0.0317 (13) | −0.0079 (13) | 0.0017 (11) | −0.0106 (13) |
C11 | 0.0225 (12) | 0.0251 (13) | 0.0218 (12) | 0.0035 (11) | −0.0055 (10) | −0.0030 (10) |
C12 | 0.0199 (12) | 0.0161 (12) | 0.0240 (12) | 0.0011 (10) | −0.0061 (9) | −0.0018 (10) |
C13 | 0.0232 (12) | 0.0245 (13) | 0.0294 (13) | 0.0033 (11) | −0.0020 (10) | 0.0007 (11) |
C14 | 0.0259 (12) | 0.0189 (12) | 0.0206 (11) | −0.0010 (10) | 0.0080 (9) | 0.0006 (10) |
C15 | 0.0250 (12) | 0.0194 (12) | 0.0217 (11) | −0.0010 (10) | 0.0055 (9) | −0.0023 (10) |
C16 | 0.0231 (12) | 0.0306 (14) | 0.0261 (12) | 0.0013 (11) | 0.0074 (10) | −0.0004 (11) |
C17 | 0.0272 (13) | 0.0364 (16) | 0.0226 (12) | −0.0116 (12) | 0.0060 (10) | −0.0025 (11) |
C18 | 0.0445 (16) | 0.0230 (14) | 0.0290 (13) | −0.0083 (13) | 0.0139 (12) | −0.0085 (11) |
C19 | 0.0414 (15) | 0.0210 (13) | 0.0299 (13) | 0.0047 (12) | 0.0141 (12) | −0.0015 (11) |
C20 | 0.0397 (16) | 0.0508 (19) | 0.0381 (16) | 0.0198 (15) | 0.0080 (13) | 0.0162 (15) |
Cl1—C17 | 1.746 (3) | C2—H2A | 0.9300 |
S1—C11 | 1.740 (2) | C3—C4 | 1.388 (4) |
S1—C10 | 1.799 (3) | C4—C5 | 1.374 (4) |
O1—N1 | 1.373 (3) | C4—H4A | 0.9300 |
O1—C7 | 1.418 (4) | C5—C6 | 1.385 (3) |
O2—C7 | 1.201 (3) | C5—H5A | 0.9300 |
O3—C9 | 1.211 (3) | C7—C8 | 1.426 (4) |
O4—C3 | 1.362 (3) | C8—C9 | 1.463 (4) |
O4—C20 | 1.425 (3) | C9—C10 | 1.517 (4) |
N1—N2 | 1.312 (3) | C10—H10A | 0.9700 |
N2—C8 | 1.368 (3) | C10—H10B | 0.9700 |
N2—C6 | 1.445 (3) | C12—C13 | 1.500 (3) |
N3—C11 | 1.307 (3) | C13—H13A | 0.9700 |
N3—N4 | 1.400 (3) | C13—H13B | 0.9700 |
N4—C12 | 1.298 (3) | C14—C19 | 1.398 (3) |
N5—C12 | 1.361 (3) | C14—C15 | 1.404 (3) |
N5—C11 | 1.365 (3) | C15—C16 | 1.381 (3) |
N5—N6 | 1.406 (3) | C15—H15A | 0.9300 |
N6—H1N6 | 0.92 (3) | C16—C17 | 1.375 (4) |
N6—H2N6 | 0.90 (3) | C16—H16A | 0.9300 |
N7—C14 | 1.372 (3) | C17—C18 | 1.383 (4) |
N7—C13 | 1.436 (3) | C18—C19 | 1.376 (4) |
N7—H1N7 | 0.86 (4) | C18—H18A | 0.9300 |
C1—C6 | 1.378 (4) | C19—H19A | 0.9300 |
C1—C2 | 1.383 (4) | C20—H20A | 0.9600 |
C1—H1A | 0.9300 | C20—H20B | 0.9600 |
C2—C3 | 1.401 (4) | C20—H20C | 0.9600 |
C11—S1—C10 | 96.59 (13) | C8—C9—C10 | 114.0 (2) |
N1—O1—C7 | 111.1 (2) | C9—C10—S1 | 114.66 (18) |
C3—O4—C20 | 118.9 (2) | C9—C10—H10A | 108.6 |
N2—N1—O1 | 105.0 (2) | S1—C10—H10A | 108.6 |
N1—N2—C8 | 114.6 (2) | C9—C10—H10B | 108.6 |
N1—N2—C6 | 114.3 (2) | S1—C10—H10B | 108.6 |
C8—N2—C6 | 131.0 (2) | H10A—C10—H10B | 107.6 |
C11—N3—N4 | 106.1 (2) | N3—C11—N5 | 110.6 (2) |
C12—N4—N3 | 108.1 (2) | N3—C11—S1 | 126.8 (2) |
C12—N5—C11 | 105.2 (2) | N5—C11—S1 | 122.58 (19) |
C12—N5—N6 | 124.0 (2) | N4—C12—N5 | 110.0 (2) |
C11—N5—N6 | 130.8 (2) | N4—C12—C13 | 125.8 (2) |
N5—N6—H1N6 | 109.7 (16) | N5—C12—C13 | 124.2 (2) |
N5—N6—H2N6 | 104.7 (16) | N7—C13—C12 | 112.7 (2) |
H1N6—N6—H2N6 | 113 (2) | N7—C13—H13A | 109.0 |
C14—N7—C13 | 122.7 (2) | C12—C13—H13A | 109.0 |
C14—N7—H1N7 | 118 (2) | N7—C13—H13B | 109.0 |
C13—N7—H1N7 | 118 (2) | C12—C13—H13B | 109.0 |
C6—C1—C2 | 120.1 (2) | H13A—C13—H13B | 107.8 |
C6—C1—H1A | 120.0 | N7—C14—C19 | 119.6 (2) |
C2—C1—H1A | 120.0 | N7—C14—C15 | 122.1 (2) |
C1—C2—C3 | 118.3 (2) | C19—C14—C15 | 118.2 (2) |
C1—C2—H2A | 120.9 | C16—C15—C14 | 120.3 (2) |
C3—C2—H2A | 120.9 | C16—C15—H15A | 119.8 |
O4—C3—C4 | 115.6 (2) | C14—C15—H15A | 119.8 |
O4—C3—C2 | 123.7 (2) | C17—C16—C15 | 120.2 (2) |
C4—C3—C2 | 120.7 (2) | C17—C16—H16A | 119.9 |
C5—C4—C3 | 120.8 (2) | C15—C16—H16A | 119.9 |
C5—C4—H4A | 119.6 | C16—C17—C18 | 120.4 (2) |
C3—C4—H4A | 119.6 | C16—C17—Cl1 | 119.7 (2) |
C4—C5—C6 | 118.2 (2) | C18—C17—Cl1 | 119.9 (2) |
C4—C5—H5A | 120.9 | C19—C18—C17 | 119.9 (2) |
C6—C5—H5A | 120.9 | C19—C18—H18A | 120.1 |
C1—C6—C5 | 122.0 (2) | C17—C18—H18A | 120.1 |
C1—C6—N2 | 117.9 (2) | C18—C19—C14 | 120.9 (2) |
C5—C6—N2 | 119.9 (2) | C18—C19—H19A | 119.6 |
O2—C7—O1 | 120.2 (3) | C14—C19—H19A | 119.6 |
O2—C7—C8 | 136.0 (3) | O4—C20—H20A | 109.5 |
O1—C7—C8 | 103.8 (2) | O4—C20—H20B | 109.5 |
N2—C8—C7 | 105.5 (2) | H20A—C20—H20B | 109.5 |
N2—C8—C9 | 126.2 (2) | O4—C20—H20C | 109.5 |
C7—C8—C9 | 128.0 (3) | H20A—C20—H20C | 109.5 |
O3—C9—C8 | 122.3 (2) | H20B—C20—H20C | 109.5 |
O3—C9—C10 | 123.7 (2) | ||
C7—O1—N1—N2 | 1.3 (3) | C7—C8—C9—C10 | −8.4 (4) |
O1—N1—N2—C8 | −1.1 (3) | O3—C9—C10—S1 | −8.0 (3) |
O1—N1—N2—C6 | 179.88 (19) | C8—C9—C10—S1 | 172.08 (18) |
C11—N3—N4—C12 | 0.3 (3) | C11—S1—C10—C9 | −75.5 (2) |
C6—C1—C2—C3 | 0.0 (4) | N4—N3—C11—N5 | −1.3 (3) |
C20—O4—C3—C4 | −177.4 (2) | N4—N3—C11—S1 | −179.44 (17) |
C20—O4—C3—C2 | 2.8 (3) | C12—N5—C11—N3 | 1.7 (3) |
C1—C2—C3—O4 | 179.7 (2) | N6—N5—C11—N3 | −179.1 (2) |
C1—C2—C3—C4 | −0.1 (4) | C12—N5—C11—S1 | 179.98 (16) |
O4—C3—C4—C5 | −179.9 (2) | N6—N5—C11—S1 | −0.9 (3) |
C2—C3—C4—C5 | 0.0 (4) | C10—S1—C11—N3 | 13.6 (2) |
C3—C4—C5—C6 | 0.3 (4) | C10—S1—C11—N5 | −164.31 (19) |
C2—C1—C6—C5 | 0.2 (4) | N3—N4—C12—N5 | 0.8 (3) |
C2—C1—C6—N2 | 175.8 (2) | N3—N4—C12—C13 | −177.9 (2) |
C4—C5—C6—C1 | −0.4 (4) | C11—N5—C12—N4 | −1.5 (3) |
C4—C5—C6—N2 | −175.9 (2) | N6—N5—C12—N4 | 179.3 (2) |
N1—N2—C6—C1 | −50.1 (3) | C11—N5—C12—C13 | 177.2 (2) |
C8—N2—C6—C1 | 131.1 (3) | N6—N5—C12—C13 | −2.0 (3) |
N1—N2—C6—C5 | 125.5 (2) | C14—N7—C13—C12 | −70.2 (3) |
C8—N2—C6—C5 | −53.3 (3) | N4—C12—C13—N7 | −55.2 (3) |
N1—O1—C7—O2 | −179.0 (2) | N5—C12—C13—N7 | 126.3 (2) |
N1—O1—C7—C8 | −1.0 (3) | C13—N7—C14—C19 | 174.1 (2) |
N1—N2—C8—C7 | 0.5 (3) | C13—N7—C14—C15 | −9.4 (4) |
C6—N2—C8—C7 | 179.3 (2) | N7—C14—C15—C16 | −174.1 (2) |
N1—N2—C8—C9 | 174.0 (2) | C19—C14—C15—C16 | 2.5 (3) |
C6—N2—C8—C9 | −7.1 (4) | C14—C15—C16—C17 | −0.4 (4) |
O2—C7—C8—N2 | 177.8 (3) | C15—C16—C17—C18 | −1.6 (4) |
O1—C7—C8—N2 | 0.3 (3) | C15—C16—C17—Cl1 | 177.12 (18) |
O2—C7—C8—C9 | 4.4 (5) | C16—C17—C18—C19 | 1.5 (4) |
O1—C7—C8—C9 | −173.1 (2) | Cl1—C17—C18—C19 | −177.23 (19) |
N2—C8—C9—O3 | −0.4 (4) | C17—C18—C19—C14 | 0.6 (4) |
C7—C8—C9—O3 | 171.7 (3) | N7—C14—C19—C18 | 174.1 (2) |
N2—C8—C9—C10 | 179.5 (2) | C15—C14—C19—C18 | −2.6 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N6—H1N6···N4i | 0.93 (3) | 2.08 (3) | 2.947 (3) | 155 (2) |
N7—H1N7···O3ii | 0.86 (3) | 2.22 (3) | 2.990 (3) | 150 (3) |
N6—H2N6···O2iii | 0.90 (3) | 2.15 (3) | 2.983 (3) | 153 (2) |
C4—H4A···O4iv | 0.93 | 2.53 | 3.337 (3) | 145 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1/2, y+1/2, −z+1/2; (iii) −x+1, y−1, −z+1/2; (iv) −x+1/2, −y+1/2, −z. |
Experimental details
Crystal data | |
Chemical formula | C20H18ClN7O4S |
Mr | 487.92 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 100 |
a, b, c (Å) | 20.109 (3), 5.8952 (8), 36.369 (5) |
β (°) | 96.076 (3) |
V (Å3) | 4287.2 (10) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.32 |
Crystal size (mm) | 0.40 × 0.13 × 0.04 |
Data collection | |
Diffractometer | Bruker APEXII DUO CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.883, 0.989 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8905, 4429, 3255 |
Rint | 0.037 |
(sin θ/λ)max (Å−1) | 0.628 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.132, 1.08 |
No. of reflections | 4429 |
No. of parameters | 311 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.35 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N6—H1N6···N4i | 0.93 (3) | 2.08 (3) | 2.947 (3) | 155 (2) |
N7—H1N7···O3ii | 0.86 (3) | 2.22 (3) | 2.990 (3) | 150 (3) |
N6—H2N6···O2iii | 0.90 (3) | 2.15 (3) | 2.983 (3) | 153 (2) |
C4—H4A···O4iv | 0.93 | 2.53 | 3.337 (3) | 145 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1/2, y+1/2, −z+1/2; (iii) −x+1, y−1, −z+1/2; (iv) −x+1/2, −y+1/2, −z. |
Footnotes
‡Thomson Reuters ResearcherID: A-3561-2009.
Acknowledgements
HKF and MH thank the Malaysian Government and Universiti Sains Malaysia for the Research University grant No. 1001/PFIZIK/811160. MH also thanks Universiti Sains Malaysia for a post-doctoral research fellowship.
References
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Bruker (2009). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cosier, J. & Glazer, A. M. (1986). J. Appl. Cryst. 19, 105–107. CrossRef CAS Web of Science IUCr Journals Google Scholar
Jyothi, C. H., Girisha, K. S., Adithya, A. & Kalluraya, B. (2008). Eur. J. Med. Chem. 43, 2831–2834. Web of Science PubMed Google Scholar
Kalluraya, B., Rahiman, A. & David, B. (2002). Indian J. Chem. Sect. B, 41, 1712–1717. Google Scholar
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Sydnones are mesoionic heterocyclic aromatic compounds. The study of sydnones still remains a field of interest because of their electronic structures and also because of the varied types of biological activities (Rai et al., 2008). Recently sydnone derivatives were found to exhibit promising antimicrobial properties (Kalluraya et al., 2002). Since their discovery, sydnones have shown diverse biological activities and it is thought that the meso-ionic nature of the sydnone ring promotes significant interactions with biological systems. Because of the wide variety of properties displayed by sydnones, we were prompted to synthesize a new S-substituted triazoles containing a sydnone ring. Photochemical bromination of 3-aryl-4-acetylsydnone afforded 3-aryl-4 bromoacetylsydnones. Condensation of 3-substituted-4-amino-5-mecapto-1,2,4-triazoles with 3-aryl-4-bromoacetylsydnones yielded S-substituted triazoles derivatives (Jyothi et al., 2008).
In the title compound, (Fig. 1), the rings A (C14–C19), B (N3/N4/N5/C11–C12), C (N1/N2/O1/C7–C8) and D (C1–C6) are essentially planar. The dihedral angle between the best planes of the rings are A/B = 80.02 (13)°, A/C = 53.76 (14)°, A/D = 5.24 (12)°, B/C = 85.68 (14)°, B/D = 85.12 (13)° and C/D = 51.62 (14)°. The bond lengths (Allen et al., 1987) and angles are normal.
In the crystal structure (Fig. 2), the molecules are connected via intermolecular N6—H1N6···N4, N7—H1N7···O3, N6—H2N6···O2 and C4—H4A···O4 hydrogen bonds to form two-dimensional networks parallel to the ac plane.