Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807059004/nc2079sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807059004/nc2079Isup2.hkl |
CCDC reference: 673023
Key indicators
- Single-crystal X-ray study
- T = 299 K
- Mean (C-C) = 0.007 Å
- R factor = 0.096
- wR factor = 0.270
- Data-to-parameter ratio = 13.2
checkCIF/PLATON results
No syntax errors found
Alert level C RFACR01_ALERT_3_C The value of the weighted R factor is > 0.25 Weighted R factor given 0.270 RINTA01_ALERT_3_C The value of Rint is greater than 0.10 Rint given 0.102 PLAT020_ALERT_3_C The value of Rint is greater than 0.10 ......... 0.10 PLAT084_ALERT_2_C High R2 Value .................................. 0.27 PLAT152_ALERT_1_C Supplied and Calc Volume s.u. Inconsistent ..... ? PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor .... 2.15 PLAT318_ALERT_2_C Check Hybridisation of N1 in Main Residue . ? PLAT340_ALERT_3_C Low Bond Precision on C-C Bonds (x 1000) Ang ... 7 PLAT431_ALERT_2_C Short Inter HL..A Contact Cl1 .. N3 .. 3.23 Ang.
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 9 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 4 ALERT type 2 Indicator that the structure model may be wrong or deficient 4 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
For related literature, see: Bernardo et al. (1996); Chiaramonte et al. (2003); Punniyamurthy et al. (1995); Torayama et al. (1997); Xue et al. (2000).
Compound (I) was prepared according to a literature procedure (Xue et al., 2000). Suitable crystals were obtained by recrystallization from methanol-dichloromethane (1:1).
The C—H atoms were positioned with idealized geometry and refined using a riding model with C—H in the range 0.93–0.96 Å. The N—H H atoms were initially located in difference map, which shows that the nitrogen atom is nearly planar. Finally the N—H atoms were positioned with idealized geometry and refined using a riding model with N—H = 0.86 Å. All H atoms were refined with isotropic displacement parameters (set to 1.2 times of the Ueq of the parent atom). All crystals investigated exhibits very broad reflection profiles and thus were of low crystal quality, which might be the reason for the bad reliability factors.
Data collection: CAD-4-PC (Enraf–Nonius, 1996); cell refinement: CAD-4-PC (Enraf–Nonius, 1996); data reduction: REDU4 (Stoe & Cie, 1987); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).
Fig. 1. Molecular structure of (I), showing the atom labeling and displacement ellipsoids drawn at the 50% probability level. |
C17H15Cl2N3O3S | Z = 2 |
Mr = 412.28 | F(000) = 424 |
Triclinic, P1 | Dx = 1.551 Mg m−3 |
Hall symbol: -P 1 | Cu Kα radiation, λ = 1.54180 Å |
a = 8.009 (2) Å | Cell parameters from 25 reflections |
b = 10.697 (3) Å | θ = 5.3–18.7° |
c = 11.201 (5) Å | µ = 4.63 mm−1 |
α = 102.17 (3)° | T = 299 K |
β = 92.23 (2)° | Prism, colorless |
γ = 108.69 (3)° | 0.45 × 0.38 × 0.13 mm |
V = 882.7 (5) Å3 |
Enraf–Nonius CAD-4 diffractometer | 2692 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.102 |
Graphite monochromator | θmax = 66.9°, θmin = 4.1° |
ω/2θ scans | h = −9→9 |
Absorption correction: psi-scan (North et al., 1968) | k = −12→12 |
Tmin = 0.180, Tmax = 0.545 | l = −13→2 |
3679 measured reflections | 3 standard reflections every 120 min |
3139 independent reflections | intensity decay: 1.0% |
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)] = 0.096 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.270 | H-atom parameters constrained |
S = 1.20 | w = 1/[σ2(Fo2) + (0.2P)2] where P = (Fo2 + 2Fc2)/3 |
3139 reflections | (Δ/σ)max < 0.001 |
237 parameters | Δρmax = 1.15 e Å−3 |
0 restraints | Δρmin = −0.93 e Å−3 |
C17H15Cl2N3O3S | γ = 108.69 (3)° |
Mr = 412.28 | V = 882.7 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.009 (2) Å | Cu Kα radiation |
b = 10.697 (3) Å | µ = 4.63 mm−1 |
c = 11.201 (5) Å | T = 299 K |
α = 102.17 (3)° | 0.45 × 0.38 × 0.13 mm |
β = 92.23 (2)° |
Enraf–Nonius CAD-4 diffractometer | 2692 reflections with I > 2σ(I) |
Absorption correction: psi-scan (North et al., 1968) | Rint = 0.102 |
Tmin = 0.180, Tmax = 0.545 | 3 standard reflections every 120 min |
3679 measured reflections | intensity decay: 1.0% |
3139 independent reflections |
R[F2 > 2σ(F2)] = 0.096 | 0 restraints |
wR(F2) = 0.270 | H-atom parameters constrained |
S = 1.20 | Δρmax = 1.15 e Å−3 |
3139 reflections | Δρmin = −0.93 e Å−3 |
237 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'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 > σ(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 | ||
C1 | 0.2506 (5) | 0.6027 (4) | 0.3252 (4) | 0.0406 (9) | |
C2 | 0.4235 (5) | 0.6088 (4) | 0.3586 (4) | 0.0447 (9) | |
C3 | 0.5105 (6) | 0.5429 (5) | 0.2785 (5) | 0.0520 (11) | |
H3 | 0.6247 | 0.5465 | 0.3027 | 0.062* | |
C4 | 0.4290 (6) | 0.4715 (5) | 0.1624 (5) | 0.0525 (11) | |
H4 | 0.4874 | 0.4265 | 0.1079 | 0.063* | |
C5 | 0.2600 (6) | 0.4674 (4) | 0.1280 (4) | 0.0449 (9) | |
C6 | 0.1701 (6) | 0.5323 (4) | 0.2073 (4) | 0.0443 (10) | |
H6 | 0.0565 | 0.5290 | 0.1821 | 0.053* | |
C7 | 0.2173 (5) | 0.9206 (4) | 0.3645 (4) | 0.0371 (8) | |
C8 | 0.0806 (5) | 0.9498 (4) | 0.3131 (4) | 0.0414 (9) | |
C9 | 0.3788 (5) | 0.9952 (4) | 0.3207 (4) | 0.0381 (8) | |
C10 | 0.4284 (6) | 1.1241 (4) | 0.1575 (4) | 0.0430 (9) | |
C11 | 0.6038 (6) | 1.2059 (4) | 0.1939 (5) | 0.0488 (10) | |
H11 | 0.6519 | 1.2274 | 0.2756 | 0.059* | |
C12 | 0.7050 (7) | 1.2546 (5) | 0.1065 (5) | 0.0589 (12) | |
H12 | 0.8241 | 1.3066 | 0.1289 | 0.071* | |
C13 | 0.6322 (8) | 1.2275 (5) | −0.0142 (5) | 0.0616 (13) | |
H13 | 0.7017 | 1.2620 | −0.0721 | 0.074* | |
C14 | 0.4574 (8) | 1.1494 (5) | −0.0480 (5) | 0.0605 (12) | |
H14 | 0.4082 | 1.1317 | −0.1289 | 0.073* | |
C15 | 0.3541 (7) | 1.0971 (5) | 0.0370 (4) | 0.0511 (10) | |
H15 | 0.2355 | 1.0441 | 0.0139 | 0.061* | |
C16 | −0.1099 (6) | 0.9038 (5) | 0.3355 (5) | 0.0557 (12) | |
H16A | −0.1217 | 0.8644 | 0.4055 | 0.067* | |
H16B | −0.1795 | 0.8374 | 0.2645 | 0.067* | |
H16C | −0.1508 | 0.9802 | 0.3510 | 0.067* | |
C17 | 0.0771 (7) | 1.1450 (5) | 0.2313 (6) | 0.0620 (13) | |
H17C | 0.1435 | 1.1976 | 0.1785 | 0.074* | |
H17B | 0.0936 | 1.2011 | 0.3128 | 0.074* | |
H17A | −0.0466 | 1.1110 | 0.2005 | 0.074* | |
N1 | 0.2147 (4) | 0.8422 (3) | 0.4515 (3) | 0.0377 (7) | |
H1A | 0.2656 | 0.8841 | 0.5246 | 0.045* | |
N2 | 0.1397 (4) | 1.0301 (4) | 0.2342 (4) | 0.0456 (9) | |
N3 | 0.3272 (4) | 1.0676 (4) | 0.2471 (3) | 0.0434 (8) | |
O1 | −0.0439 (4) | 0.6444 (3) | 0.3520 (3) | 0.0525 (8) | |
O2 | 0.1325 (4) | 0.6469 (3) | 0.5388 (3) | 0.0546 (8) | |
O3 | 0.5322 (3) | 0.9969 (3) | 0.3430 (3) | 0.0441 (7) | |
Cl1 | 0.53256 (15) | 0.69729 (13) | 0.50285 (11) | 0.0617 (5) | |
Cl2 | 0.15602 (17) | 0.37735 (13) | −0.01848 (11) | 0.0634 (5) | |
S1 | 0.12324 (12) | 0.67997 (9) | 0.42367 (9) | 0.0404 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0293 (19) | 0.0222 (17) | 0.064 (2) | 0.0068 (14) | −0.0029 (16) | 0.0015 (15) |
C2 | 0.031 (2) | 0.0317 (19) | 0.065 (2) | 0.0093 (16) | −0.0046 (17) | 0.0002 (17) |
C3 | 0.031 (2) | 0.039 (2) | 0.082 (3) | 0.0129 (18) | 0.0001 (19) | 0.005 (2) |
C4 | 0.040 (2) | 0.036 (2) | 0.079 (3) | 0.0144 (19) | 0.008 (2) | 0.004 (2) |
C5 | 0.041 (2) | 0.0269 (18) | 0.060 (2) | 0.0090 (16) | −0.0018 (17) | 0.0019 (16) |
C6 | 0.032 (2) | 0.0279 (18) | 0.068 (3) | 0.0088 (15) | −0.0054 (17) | 0.0036 (17) |
C7 | 0.0240 (18) | 0.0249 (17) | 0.057 (2) | 0.0073 (14) | 0.0007 (15) | 0.0002 (15) |
C8 | 0.0286 (19) | 0.0292 (18) | 0.063 (2) | 0.0134 (15) | 0.0006 (16) | −0.0013 (16) |
C9 | 0.0275 (19) | 0.0260 (17) | 0.056 (2) | 0.0094 (15) | −0.0015 (15) | −0.0007 (15) |
C10 | 0.037 (2) | 0.0302 (19) | 0.060 (2) | 0.0135 (16) | 0.0013 (17) | 0.0030 (16) |
C11 | 0.044 (2) | 0.033 (2) | 0.067 (3) | 0.0127 (18) | 0.0016 (19) | 0.0065 (18) |
C12 | 0.050 (3) | 0.038 (2) | 0.087 (3) | 0.010 (2) | 0.013 (2) | 0.018 (2) |
C13 | 0.072 (3) | 0.042 (2) | 0.083 (3) | 0.028 (2) | 0.025 (3) | 0.023 (2) |
C14 | 0.078 (4) | 0.047 (3) | 0.064 (3) | 0.033 (3) | 0.007 (2) | 0.011 (2) |
C15 | 0.050 (3) | 0.037 (2) | 0.062 (3) | 0.0172 (19) | −0.006 (2) | 0.0024 (18) |
C16 | 0.026 (2) | 0.053 (3) | 0.091 (3) | 0.0184 (19) | 0.005 (2) | 0.014 (2) |
C17 | 0.044 (3) | 0.046 (3) | 0.101 (4) | 0.024 (2) | 0.000 (2) | 0.016 (3) |
N1 | 0.0257 (15) | 0.0237 (15) | 0.0546 (18) | 0.0039 (12) | −0.0041 (12) | −0.0013 (13) |
N2 | 0.0238 (17) | 0.0402 (19) | 0.072 (2) | 0.0145 (15) | −0.0032 (14) | 0.0084 (16) |
N3 | 0.0253 (16) | 0.0352 (17) | 0.067 (2) | 0.0090 (14) | −0.0029 (14) | 0.0091 (15) |
O1 | 0.0225 (14) | 0.0358 (15) | 0.084 (2) | 0.0042 (12) | −0.0057 (13) | −0.0066 (14) |
O2 | 0.0431 (18) | 0.0384 (16) | 0.079 (2) | 0.0088 (13) | 0.0110 (14) | 0.0131 (15) |
O3 | 0.0249 (14) | 0.0383 (15) | 0.0647 (17) | 0.0119 (12) | −0.0030 (11) | 0.0022 (12) |
Cl1 | 0.0370 (7) | 0.0592 (8) | 0.0747 (8) | 0.0170 (5) | −0.0131 (5) | −0.0118 (6) |
Cl2 | 0.0586 (8) | 0.0551 (8) | 0.0669 (8) | 0.0218 (6) | −0.0068 (6) | −0.0079 (5) |
S1 | 0.0240 (6) | 0.0258 (6) | 0.0648 (7) | 0.0048 (4) | 0.0011 (4) | 0.0029 (4) |
C1—C6 | 1.389 (6) | C11—C12 | 1.376 (7) |
C1—C2 | 1.397 (5) | C11—H11 | 0.9300 |
C1—S1 | 1.785 (4) | C12—C13 | 1.385 (8) |
C2—C3 | 1.373 (7) | C12—H12 | 0.9300 |
C2—Cl1 | 1.727 (4) | C13—C14 | 1.370 (8) |
C3—C4 | 1.377 (7) | C13—H13 | 0.9300 |
C3—H3 | 0.9300 | C14—C15 | 1.376 (8) |
C4—C5 | 1.378 (6) | C14—H14 | 0.9300 |
C4—H4 | 0.9300 | C15—H15 | 0.9300 |
C5—C6 | 1.378 (6) | C16—H16A | 0.9600 |
C5—Cl2 | 1.739 (4) | C16—H16B | 0.9600 |
C6—H6 | 0.9300 | C16—H16C | 0.9600 |
C7—C8 | 1.368 (5) | C17—N2 | 1.473 (5) |
C7—N1 | 1.410 (5) | C17—H17C | 0.9600 |
C7—C9 | 1.450 (5) | C17—H17B | 0.9600 |
C8—N2 | 1.355 (6) | C17—H17A | 0.9600 |
C8—C16 | 1.495 (6) | N1—S1 | 1.608 (3) |
C9—O3 | 1.237 (4) | N1—H1A | 0.8600 |
C9—N3 | 1.377 (5) | N2—N3 | 1.418 (4) |
C10—C15 | 1.386 (7) | O1—S1 | 1.429 (3) |
C10—C11 | 1.386 (6) | O2—S1 | 1.412 (4) |
C10—N3 | 1.427 (6) | ||
C6—C1—C2 | 118.6 (4) | C14—C13—C12 | 119.7 (5) |
C6—C1—S1 | 116.8 (3) | C14—C13—H13 | 120.1 |
C2—C1—S1 | 124.6 (3) | C12—C13—H13 | 120.1 |
C3—C2—C1 | 121.0 (4) | C13—C14—C15 | 120.5 (5) |
C3—C2—Cl1 | 118.1 (3) | C13—C14—H14 | 119.8 |
C1—C2—Cl1 | 120.9 (3) | C15—C14—H14 | 119.8 |
C2—C3—C4 | 120.1 (4) | C14—C15—C10 | 119.4 (5) |
C2—C3—H3 | 119.9 | C14—C15—H15 | 120.3 |
C4—C3—H3 | 119.9 | C10—C15—H15 | 120.3 |
C3—C4—C5 | 119.2 (4) | C8—C16—H16A | 109.5 |
C3—C4—H4 | 120.4 | C8—C16—H16B | 109.5 |
C5—C4—H4 | 120.4 | H16A—C16—H16B | 109.5 |
C4—C5—C6 | 121.5 (4) | C8—C16—H16C | 109.5 |
C4—C5—Cl2 | 119.5 (4) | H16A—C16—H16C | 109.5 |
C6—C5—Cl2 | 119.0 (3) | H16B—C16—H16C | 109.5 |
C5—C6—C1 | 119.5 (4) | N2—C17—H17C | 109.5 |
C5—C6—H6 | 120.2 | N2—C17—H17B | 109.5 |
C1—C6—H6 | 120.2 | H17C—C17—H17B | 109.5 |
C8—C7—N1 | 129.1 (4) | N2—C17—H17A | 109.5 |
C8—C7—C9 | 107.5 (4) | H17C—C17—H17A | 109.5 |
N1—C7—C9 | 123.3 (3) | H17B—C17—H17A | 109.5 |
N2—C8—C7 | 110.5 (4) | C7—N1—S1 | 124.6 (3) |
N2—C8—C16 | 121.7 (4) | C7—N1—H1A | 117.7 |
C7—C8—C16 | 127.8 (4) | S1—N1—H1A | 117.7 |
O3—C9—N3 | 125.7 (4) | C8—N2—N3 | 106.6 (3) |
O3—C9—C7 | 129.0 (4) | C8—N2—C17 | 120.7 (4) |
N3—C9—C7 | 105.2 (3) | N3—N2—C17 | 113.2 (3) |
C15—C10—C11 | 120.9 (4) | C9—N3—N2 | 109.5 (3) |
C15—C10—N3 | 121.0 (4) | C9—N3—C10 | 124.7 (3) |
C11—C10—N3 | 118.1 (4) | N2—N3—C10 | 120.9 (3) |
C12—C11—C10 | 118.5 (5) | O2—S1—O1 | 120.7 (2) |
C12—C11—H11 | 120.8 | O2—S1—N1 | 105.36 (19) |
C10—C11—H11 | 120.8 | O1—S1—N1 | 107.72 (18) |
C11—C12—C13 | 121.0 (5) | O2—S1—C1 | 109.1 (2) |
C11—C12—H12 | 119.5 | O1—S1—C1 | 104.75 (19) |
C13—C12—H12 | 119.5 | N1—S1—C1 | 108.86 (18) |
C6—C1—C2—C3 | −2.2 (6) | N3—C10—C15—C14 | −177.8 (4) |
S1—C1—C2—C3 | 177.9 (3) | C8—C7—N1—S1 | 70.4 (5) |
C6—C1—C2—Cl1 | 178.8 (3) | C9—C7—N1—S1 | −114.7 (4) |
S1—C1—C2—Cl1 | −1.0 (5) | C7—C8—N2—N3 | −7.3 (5) |
C1—C2—C3—C4 | 1.2 (7) | C16—C8—N2—N3 | 172.7 (4) |
Cl1—C2—C3—C4 | −179.8 (4) | C7—C8—N2—C17 | −138.1 (4) |
C2—C3—C4—C5 | 0.1 (7) | C16—C8—N2—C17 | 41.8 (6) |
C3—C4—C5—C6 | −0.5 (7) | O3—C9—N3—N2 | 174.6 (4) |
C3—C4—C5—Cl2 | −180.0 (4) | C7—C9—N3—N2 | −5.8 (4) |
C4—C5—C6—C1 | −0.5 (6) | O3—C9—N3—C10 | 19.4 (6) |
Cl2—C5—C6—C1 | 179.0 (3) | C7—C9—N3—C10 | −161.1 (4) |
C2—C1—C6—C5 | 1.8 (6) | C8—N2—N3—C9 | 8.2 (5) |
S1—C1—C6—C5 | −178.3 (3) | C17—N2—N3—C9 | 143.2 (4) |
N1—C7—C8—N2 | 179.3 (4) | C8—N2—N3—C10 | 164.6 (4) |
C9—C7—C8—N2 | 3.7 (5) | C17—N2—N3—C10 | −60.5 (5) |
N1—C7—C8—C16 | −0.7 (7) | C15—C10—N3—C9 | 127.2 (4) |
C9—C7—C8—C16 | −176.3 (4) | C11—C10—N3—C9 | −52.3 (6) |
C8—C7—C9—O3 | −179.0 (4) | C15—C10—N3—N2 | −25.4 (6) |
N1—C7—C9—O3 | 5.1 (6) | C11—C10—N3—N2 | 155.0 (4) |
C8—C7—C9—N3 | 1.4 (4) | C7—N1—S1—O2 | −172.8 (3) |
N1—C7—C9—N3 | −174.4 (3) | C7—N1—S1—O1 | −42.8 (4) |
C15—C10—C11—C12 | −3.1 (6) | C7—N1—S1—C1 | 70.3 (3) |
N3—C10—C11—C12 | 176.5 (4) | C6—C1—S1—O2 | 132.0 (3) |
C10—C11—C12—C13 | 2.6 (7) | C2—C1—S1—O2 | −48.2 (4) |
C11—C12—C13—C14 | −0.9 (8) | C6—C1—S1—O1 | 1.5 (4) |
C12—C13—C14—C15 | −0.5 (7) | C2—C1—S1—O1 | −178.7 (4) |
C13—C14—C15—C10 | 0.0 (7) | C6—C1—S1—N1 | −113.5 (3) |
C11—C10—C15—C14 | 1.8 (6) | C2—C1—S1—N1 | 66.3 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O3i | 0.86 | 2.03 | 2.846 (4) | 157 |
C3—H3···O1ii | 0.93 | 2.51 | 3.392 (5) | 158 |
C11—H11···O2i | 0.93 | 2.48 | 3.360 (6) | 157 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C17H15Cl2N3O3S |
Mr | 412.28 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 299 |
a, b, c (Å) | 8.009 (2), 10.697 (3), 11.201 (5) |
α, β, γ (°) | 102.17 (3), 92.23 (2), 108.69 (3) |
V (Å3) | 882.7 (5) |
Z | 2 |
Radiation type | Cu Kα |
µ (mm−1) | 4.63 |
Crystal size (mm) | 0.45 × 0.38 × 0.13 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 diffractometer |
Absorption correction | Psi-scan (North et al., 1968) |
Tmin, Tmax | 0.180, 0.545 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3679, 3139, 2692 |
Rint | 0.102 |
(sin θ/λ)max (Å−1) | 0.597 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.096, 0.270, 1.20 |
No. of reflections | 3139 |
No. of parameters | 237 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.15, −0.93 |
Computer programs: CAD-4-PC (Enraf–Nonius, 1996), REDU4 (Stoe & Cie, 1987), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O3i | 0.86 | 2.03 | 2.846 (4) | 157.0 |
C3—H3···O1ii | 0.93 | 2.51 | 3.392 (5) | 158.0 |
C11—H11···O2i | 0.93 | 2.48 | 3.360 (6) | 157.3 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) x+1, y, z. |
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4-aminoantipyrine and its complexes are known for their variety of applications in the area of catalysis (Bernardo et al., 1996; Punniyamurthy et al., 1995), clinical applications (Chiaramonte et al., 2003), and pharmacology (Torayama et al., 1997). We have focused our research on investigation of different heterocyclic systems based on sulfonamide pharmacophoric group and metal complexes searching new lead compounds with antiparasitic activity. In the light of this interest, we describe here an crystallographic study of the title compound, (I).
The C7—N1—S1—C1 torsion angle between the pyrazole moiety and the dichlorbenzene ring is 70.3 (3)°. The phenyl ring and the pyrazole residue are twisted to each other by an angle of 41.5 (2)° between the mean planes. The N—H H atom has an intermolecular hydrogen bond to O3 [N—H···O = 2.03 Å]. The two sulfonamide oxygen atoms O1 and O2 are involved in non-classical intermolecular hydrogen bonds with C3 and C11 [C—H···O = 2.51 Å, C—H···O = 2.48 Å, respectively] (Table 1).