Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807044327/lw2028sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807044327/lw2028Isup2.hkl |
CCDC reference: 663776
Key indicators
- Single-crystal X-ray study
- T = 294 K
- Mean (C-C) = 0.005 Å
- R factor = 0.045
- wR factor = 0.120
- Data-to-parameter ratio = 13.3
checkCIF/PLATON results
No syntax errors found
Alert level C PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.97 PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ? PLAT125_ALERT_4_C No _symmetry_space_group_name_Hall Given ....... ? PLAT153_ALERT_1_C The su's on the Cell Axes are Equal (x 100000) 600 Ang. PLAT340_ALERT_3_C Low Bond Precision on C-C Bonds (x 1000) Ang ... 5
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 5 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 ALERT type 2 Indicator that the structure model may be wrong or deficient 2 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
For related literature, see: Bao et al. (2006); Bose et al. (2005); Caruso et al. (2000); Clark & Bookland (2005); Ito et al. (2001); Kees et al. (1996); Knorr (1884); Omotowa & Mesubi (1997); Shi et al. (2005); Whitaker (1995).
The title compound was synthesized by refluxing an ethanol solution of ethyl 3-oxo-2-(phenylhydrazono)butanate and S-benzyldithiocarbazate (1:1) for 24 h. After 12 h at room temperature for 12 h, The precipitatewas colleceted by filtration and recrystallized from ethanol (yield 82.2%)·The yellow crystals suitable for X-ray analysis were obtained by slow evaporation of a dichloromethane solution at 278 K (m.p. 344.1–345.8 K). Analysis calculated for C18H16N4OS2: C 58.67, H 4.36, N 15.21%; found: C 58.66, H 4.35, N 15.21%. IR (KBr,cm-1): 3214(s, NH), 1619 (versus, O═C), 1545 (s, N═C), 1280(w, S═C). UV (λmax, in CHCl3, nm): 404 (K-band, 1.92× 104). 1HNMR (600 MHz, CDCl3): δ: 10.47 (m, 10H, ArH), 6.83 (s, H, NH), 4.06 (s, 2H, ArCH2), 1.19 (s, 3H, CH3).
The H atoms were placed in calculated positions and refined as riding, with C—H = 0.93–0.97 Å with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(methyl C) except for N4, (N—H = 0.90 Å), which was refined.
Pyrazolones constitute a group of organic compounds that have been extensively studied due to their properties and applications. Since the synthesis of antipyrine (2,3-dimethyl-1-phenyl-5-pyrazolone) by Knorr (Knorr,1884), a great deal of attention has been paid to the properties of these compounds and a series of drugs have been synthesized. For examples anti-inflammatory drugs (Clark & Bookland, 2005), compounds with antifungal compounds (Omotowa & Mesubi, 1997), antitumor (Caruso et al., 2000) and antihyperglycemic (Kees et al., 1996). Although the use of pyrazolones as drugs has warranted significant attention, many more applications have been devised for this group of molecules outside the pharmaceutical field. They have been applied to the solvent extraction of metal ions (Bose et al., 2005), for analytical purposes (Ito et al., 2001), in the preparation of azo colorants (Whitaker, 1995), as ligands in complexes with catalytic activity (Bao et al., 2006) and in the synthesis of rare earth metal complexes with interesting photophysical properties (Shi et al., 2005). In present work, we report the preparation the title compound (I), and its crystal structure.
Determination of its crystal structure (Fig.1), the title compound shows one larger conjugation system in the molecule with eight carbon atoms (C11–C18),four nitrogen atoms (N1–N4) and one oxygen (O1),which is further confirmed by by UV spectroscopy.
In the title compound, the dihedral angle between this conjugation system with plane of C7—S1—C8═S2 is 13.1°. The benzene ring (C13–C18) is involved in the conjugation system (Table 1). An intramolecular N—H···O═ C hydrogen bonds is also present in the crystal structure of (I) (Table 2).
For related literature, see: Bao et al. (2006); Bose et al. (2005); Caruso et al. (2000); Clark & Bookland (2005); Ito et al. (2001); Kees et al. (1996); Knorr (1884); Omotowa & Mesubi (1997); Shi et al. (2005); Whitaker (1995).
Data collection: SMART (Bruker, 1997); cell refinement: SMART (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2001); software used to prepare material for publication: SHELXTL (Bruker, 2001).
Fig. 1. The molecular structure of (I). Displacement ellipsoids are drawn at the 30% probability level. The dashed line indicates the intramolecular hydrogen bond. |
C18H16N4OS2 | Z = 2 |
Mr = 368.47 | F(000) = 384 |
Triclinic, P1 | Dx = 1.359 Mg m−3 |
a = 9.143 (6) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 10.079 (6) Å | Cell parameters from 1587 reflections |
c = 10.217 (6) Å | θ = 2.8–28.1° |
α = 84.059 (10)° | µ = 0.31 mm−1 |
β = 79.410 (11)° | T = 294 K |
γ = 77.095 (9)° | Prism, yellow |
V = 900.2 (10) Å3 | 0.24 × 0.22 × 0.16 mm |
Bruker SMART CCD area detector diffractometer | 3062 independent reflections |
Radiation source: fine-focus sealed tube | 1974 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.034 |
φ and ω scans | θmax = 25.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Bruker 2001) | h = −10→10 |
Tmin = 0.930, Tmax = 0.952 | k = −11→11 |
4385 measured reflections | l = −12→5 |
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)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.120 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0469P)2 + 0.22P] where P = (Fo2 + 2Fc2)/3 |
3062 reflections | (Δ/σ)max = 0.001 |
231 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C18H16N4OS2 | γ = 77.095 (9)° |
Mr = 368.47 | V = 900.2 (10) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.143 (6) Å | Mo Kα radiation |
b = 10.079 (6) Å | µ = 0.31 mm−1 |
c = 10.217 (6) Å | T = 294 K |
α = 84.059 (10)° | 0.24 × 0.22 × 0.16 mm |
β = 79.410 (11)° |
Bruker SMART CCD area detector diffractometer | 3062 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker 2001) | 1974 reflections with I > 2σ(I) |
Tmin = 0.930, Tmax = 0.952 | Rint = 0.034 |
4385 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.120 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.25 e Å−3 |
3062 reflections | Δρmin = −0.24 e Å−3 |
231 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 | ||
S1 | 0.33476 (11) | 0.39781 (8) | 0.74742 (8) | 0.0596 (3) | |
S2 | 0.44038 (11) | 0.13389 (8) | 0.60963 (9) | 0.0608 (3) | |
O1 | 0.6843 (2) | −0.0198 (2) | 0.7830 (2) | 0.0559 (6) | |
N1 | 0.5025 (3) | 0.1812 (2) | 0.8440 (2) | 0.0447 (6) | |
N2 | 0.4614 (3) | 0.2616 (2) | 0.9587 (2) | 0.0483 (7) | |
N4 | 0.8444 (3) | −0.1042 (2) | 0.9988 (3) | 0.0468 (7) | |
H4 | 0.834 (4) | −0.121 (3) | 0.916 (3) | 0.060 (10)* | |
N3 | 0.7573 (3) | 0.0034 (2) | 1.0579 (2) | 0.0457 (6) | |
C1 | 0.2451 (4) | 0.6887 (3) | 0.5723 (3) | 0.0569 (9) | |
H1 | 0.3505 | 0.6713 | 0.5498 | 0.068* | |
C2 | 0.1642 (4) | 0.8227 (3) | 0.5820 (3) | 0.0603 (9) | |
H2 | 0.2156 | 0.8941 | 0.5675 | 0.072* | |
C3 | 0.0083 (4) | 0.8492 (3) | 0.6129 (3) | 0.0585 (10) | |
H3 | −0.0456 | 0.9387 | 0.6204 | 0.070* | |
C4 | −0.0681 (4) | 0.7445 (4) | 0.6329 (3) | 0.0593 (10) | |
H4A | −0.1738 | 0.7630 | 0.6509 | 0.071* | |
C5 | 0.0129 (4) | 0.6110 (3) | 0.6263 (3) | 0.0570 (9) | |
H5 | −0.0389 | 0.5399 | 0.6425 | 0.068* | |
C6 | 0.1716 (4) | 0.5822 (3) | 0.5954 (3) | 0.0469 (8) | |
C7 | 0.2581 (4) | 0.4350 (3) | 0.5920 (3) | 0.0625 (10) | |
H7A | 0.3396 | 0.4238 | 0.5158 | 0.075* | |
H7B | 0.1906 | 0.3747 | 0.5864 | 0.075* | |
C8 | 0.4323 (3) | 0.2265 (3) | 0.7332 (3) | 0.0418 (7) | |
C9 | 0.6219 (3) | 0.0678 (3) | 0.8612 (3) | 0.0445 (8) | |
C10 | 0.6526 (3) | 0.0813 (3) | 0.9940 (3) | 0.0425 (7) | |
C11 | 0.5485 (3) | 0.2025 (3) | 1.0448 (3) | 0.0437 (7) | |
C12 | 0.5357 (4) | 0.2564 (3) | 1.1777 (3) | 0.0638 (10) | |
H12A | 0.6328 | 0.2712 | 1.1885 | 0.096* | |
H12B | 0.5036 | 0.1916 | 1.2466 | 0.096* | |
H12C | 0.4623 | 0.3410 | 1.1837 | 0.096* | |
C13 | 0.9598 (3) | −0.1901 (3) | 1.0616 (3) | 0.0428 (7) | |
C14 | 1.0467 (4) | −0.3042 (3) | 0.9965 (3) | 0.0541 (9) | |
H14 | 1.0282 | −0.3227 | 0.9144 | 0.065* | |
C15 | 1.1615 (4) | −0.3898 (3) | 1.0562 (3) | 0.0573 (9) | |
H15 | 1.2187 | −0.4669 | 1.0145 | 0.069* | |
C16 | 1.1911 (4) | −0.3614 (3) | 1.1758 (3) | 0.0572 (9) | |
H16 | 1.2703 | −0.4174 | 1.2133 | 0.069* | |
C17 | 1.1033 (4) | −0.2496 (3) | 1.2406 (3) | 0.0573 (9) | |
H17 | 1.1220 | −0.2318 | 1.3228 | 0.069* | |
C18 | 0.9873 (4) | −0.1637 (3) | 1.1837 (3) | 0.0511 (8) | |
H18 | 0.9283 | −0.0886 | 1.2277 | 0.061* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0772 (7) | 0.0387 (5) | 0.0614 (5) | 0.0107 (4) | −0.0292 (5) | −0.0144 (4) |
S2 | 0.0757 (7) | 0.0447 (5) | 0.0598 (5) | 0.0029 (4) | −0.0162 (5) | −0.0183 (4) |
O1 | 0.0515 (14) | 0.0453 (12) | 0.0669 (14) | 0.0049 (11) | −0.0095 (11) | −0.0186 (11) |
N1 | 0.0448 (15) | 0.0350 (13) | 0.0510 (15) | 0.0026 (12) | −0.0093 (12) | −0.0085 (11) |
N2 | 0.0509 (16) | 0.0380 (14) | 0.0539 (15) | −0.0009 (12) | −0.0094 (13) | −0.0112 (12) |
N4 | 0.0443 (16) | 0.0416 (15) | 0.0530 (16) | −0.0007 (12) | −0.0127 (14) | −0.0058 (12) |
N3 | 0.0385 (15) | 0.0403 (14) | 0.0558 (15) | −0.0055 (12) | −0.0062 (13) | −0.0003 (12) |
C1 | 0.048 (2) | 0.057 (2) | 0.065 (2) | −0.0052 (18) | −0.0161 (18) | −0.0035 (17) |
C2 | 0.070 (3) | 0.0450 (19) | 0.067 (2) | −0.0127 (19) | −0.015 (2) | −0.0014 (16) |
C3 | 0.071 (3) | 0.0417 (19) | 0.057 (2) | 0.0040 (19) | −0.0124 (19) | −0.0039 (15) |
C4 | 0.048 (2) | 0.062 (2) | 0.062 (2) | 0.0038 (19) | −0.0079 (17) | −0.0162 (17) |
C5 | 0.065 (2) | 0.0486 (19) | 0.060 (2) | −0.0138 (18) | −0.0120 (18) | −0.0068 (16) |
C6 | 0.053 (2) | 0.0397 (17) | 0.0463 (17) | 0.0023 (16) | −0.0168 (16) | −0.0068 (13) |
C7 | 0.073 (2) | 0.0491 (19) | 0.064 (2) | 0.0084 (18) | −0.0283 (19) | −0.0128 (16) |
C8 | 0.0382 (17) | 0.0370 (16) | 0.0494 (17) | −0.0064 (14) | −0.0067 (14) | −0.0037 (13) |
C9 | 0.0366 (18) | 0.0368 (17) | 0.0585 (19) | −0.0066 (14) | −0.0042 (15) | −0.0049 (14) |
C10 | 0.0375 (18) | 0.0363 (16) | 0.0526 (18) | −0.0071 (14) | −0.0061 (15) | −0.0011 (13) |
C11 | 0.0427 (18) | 0.0392 (16) | 0.0492 (18) | −0.0072 (15) | −0.0085 (15) | −0.0053 (13) |
C12 | 0.069 (2) | 0.061 (2) | 0.061 (2) | −0.0040 (19) | −0.0133 (19) | −0.0182 (17) |
C13 | 0.0380 (18) | 0.0399 (17) | 0.0496 (18) | −0.0082 (14) | −0.0077 (15) | 0.0020 (13) |
C14 | 0.059 (2) | 0.0480 (19) | 0.0540 (19) | −0.0034 (17) | −0.0136 (17) | −0.0090 (15) |
C15 | 0.059 (2) | 0.0425 (18) | 0.063 (2) | 0.0062 (17) | −0.0100 (18) | −0.0073 (15) |
C16 | 0.050 (2) | 0.054 (2) | 0.060 (2) | 0.0001 (17) | −0.0096 (17) | 0.0084 (16) |
C17 | 0.059 (2) | 0.061 (2) | 0.0515 (19) | −0.0065 (18) | −0.0160 (17) | −0.0034 (16) |
C18 | 0.048 (2) | 0.0502 (19) | 0.0519 (18) | −0.0014 (16) | −0.0087 (16) | −0.0095 (14) |
S1—C8 | 1.765 (3) | C5—H5 | 0.9300 |
S1—C7 | 1.823 (3) | C6—C7 | 1.518 (4) |
S2—C8 | 1.628 (3) | C7—H7A | 0.9700 |
O1—C9 | 1.223 (3) | C7—H7B | 0.9700 |
N1—C8 | 1.390 (4) | C9—C10 | 1.460 (4) |
N1—C9 | 1.415 (3) | C10—C11 | 1.448 (4) |
N1—N2 | 1.439 (3) | C11—C12 | 1.489 (4) |
N2—C11 | 1.303 (4) | C12—H12A | 0.9600 |
N4—N3 | 1.322 (3) | C12—H12B | 0.9600 |
N4—C13 | 1.414 (4) | C12—H12C | 0.9600 |
N4—H4 | 0.90 (3) | C13—C18 | 1.380 (4) |
N3—C10 | 1.322 (4) | C13—C14 | 1.397 (4) |
C1—C6 | 1.368 (5) | C14—C15 | 1.393 (4) |
C1—C2 | 1.391 (4) | C14—H14 | 0.9300 |
C1—H1 | 0.9300 | C15—C16 | 1.369 (5) |
C2—C3 | 1.373 (5) | C15—H15 | 0.9300 |
C2—H2 | 0.9300 | C16—C17 | 1.381 (4) |
C3—C4 | 1.369 (5) | C16—H16 | 0.9300 |
C3—H3 | 0.9300 | C17—C18 | 1.387 (4) |
C4—C5 | 1.385 (4) | C17—H17 | 0.9300 |
C4—H4A | 0.9300 | C18—H18 | 0.9300 |
C5—C6 | 1.397 (5) | ||
C8—S1—C7 | 101.82 (14) | S2—C8—S1 | 125.74 (18) |
C8—N1—C9 | 129.6 (2) | O1—C9—N1 | 128.1 (3) |
C8—N1—N2 | 119.0 (2) | O1—C9—C10 | 128.7 (3) |
C9—N1—N2 | 111.3 (2) | N1—C9—C10 | 103.2 (2) |
C11—N2—N1 | 107.2 (2) | N3—C10—C11 | 124.6 (3) |
N3—N4—C13 | 120.3 (3) | N3—C10—C9 | 128.4 (3) |
N3—N4—H4 | 120 (2) | C11—C10—C9 | 107.0 (2) |
C13—N4—H4 | 119 (2) | N2—C11—C10 | 111.2 (3) |
N4—N3—C10 | 117.7 (3) | N2—C11—C12 | 122.2 (3) |
C6—C1—C2 | 120.9 (3) | C10—C11—C12 | 126.5 (3) |
C6—C1—H1 | 119.5 | C11—C12—H12A | 109.5 |
C2—C1—H1 | 119.5 | C11—C12—H12B | 109.5 |
C3—C2—C1 | 119.8 (4) | H12A—C12—H12B | 109.5 |
C3—C2—H2 | 120.1 | C11—C12—H12C | 109.5 |
C1—C2—H2 | 120.1 | H12A—C12—H12C | 109.5 |
C4—C3—C2 | 120.3 (3) | H12B—C12—H12C | 109.5 |
C4—C3—H3 | 119.8 | C18—C13—C14 | 120.2 (3) |
C2—C3—H3 | 119.8 | C18—C13—N4 | 121.7 (3) |
C3—C4—C5 | 119.7 (3) | C14—C13—N4 | 118.1 (3) |
C3—C4—H4A | 120.2 | C15—C14—C13 | 119.0 (3) |
C5—C4—H4A | 120.2 | C15—C14—H14 | 120.5 |
C4—C5—C6 | 120.7 (3) | C13—C14—H14 | 120.5 |
C4—C5—H5 | 119.7 | C16—C15—C14 | 120.6 (3) |
C6—C5—H5 | 119.7 | C16—C15—H15 | 119.7 |
C1—C6—C5 | 118.5 (3) | C14—C15—H15 | 119.7 |
C1—C6—C7 | 121.7 (3) | C15—C16—C17 | 120.0 (3) |
C5—C6—C7 | 119.8 (3) | C15—C16—H16 | 120.0 |
C6—C7—S1 | 105.5 (2) | C17—C16—H16 | 120.0 |
C6—C7—H7A | 110.6 | C16—C17—C18 | 120.4 (3) |
S1—C7—H7A | 110.6 | C16—C17—H17 | 119.8 |
C6—C7—H7B | 110.6 | C18—C17—H17 | 119.8 |
S1—C7—H7B | 110.6 | C13—C18—C17 | 119.7 (3) |
H7A—C7—H7B | 108.8 | C13—C18—H18 | 120.1 |
N1—C8—S2 | 124.5 (2) | C17—C18—H18 | 120.1 |
N1—C8—S1 | 109.79 (19) | ||
C8—N1—N2—C11 | −176.3 (3) | N2—N1—C9—C10 | 0.3 (3) |
C9—N1—N2—C11 | −0.4 (3) | N4—N3—C10—C11 | −179.9 (3) |
C13—N4—N3—C10 | 179.1 (3) | N4—N3—C10—C9 | −2.3 (5) |
C6—C1—C2—C3 | −1.1 (5) | O1—C9—C10—N3 | 1.6 (6) |
C1—C2—C3—C4 | −0.7 (5) | N1—C9—C10—N3 | −178.0 (3) |
C2—C3—C4—C5 | 2.2 (5) | O1—C9—C10—C11 | 179.6 (3) |
C3—C4—C5—C6 | −1.9 (5) | N1—C9—C10—C11 | −0.1 (3) |
C2—C1—C6—C5 | 1.4 (5) | N1—N2—C11—C10 | 0.4 (3) |
C2—C1—C6—C7 | −177.0 (3) | N1—N2—C11—C12 | −178.8 (3) |
C4—C5—C6—C1 | 0.1 (5) | N3—C10—C11—N2 | 177.8 (3) |
C4—C5—C6—C7 | 178.5 (3) | C9—C10—C11—N2 | −0.2 (4) |
C1—C6—C7—S1 | 75.7 (3) | N3—C10—C11—C12 | −3.1 (5) |
C5—C6—C7—S1 | −102.7 (3) | C9—C10—C11—C12 | 178.9 (3) |
C8—S1—C7—C6 | −179.9 (2) | N3—N4—C13—C18 | −1.4 (5) |
C9—N1—C8—S2 | 18.1 (5) | N3—N4—C13—C14 | 178.6 (3) |
N2—N1—C8—S2 | −167.0 (2) | C18—C13—C14—C15 | −0.4 (5) |
C9—N1—C8—S1 | −161.8 (3) | N4—C13—C14—C15 | 179.6 (3) |
N2—N1—C8—S1 | 13.1 (3) | C13—C14—C15—C16 | −1.3 (5) |
C7—S1—C8—N1 | 178.5 (2) | C14—C15—C16—C17 | 2.2 (5) |
C7—S1—C8—S2 | −1.4 (3) | C15—C16—C17—C18 | −1.6 (5) |
C8—N1—C9—O1 | −4.1 (5) | C14—C13—C18—C17 | 1.1 (5) |
N2—N1—C9—O1 | −179.3 (3) | N4—C13—C18—C17 | −178.9 (3) |
C8—N1—C9—C10 | 175.6 (3) | C16—C17—C18—C13 | −0.1 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4···O1 | 0.90 (3) | 2.13 (3) | 2.823 (4) | 133 (3) |
Experimental details
Crystal data | |
Chemical formula | C18H16N4OS2 |
Mr | 368.47 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 294 |
a, b, c (Å) | 9.143 (6), 10.079 (6), 10.217 (6) |
α, β, γ (°) | 84.059 (10), 79.410 (11), 77.095 (9) |
V (Å3) | 900.2 (10) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.31 |
Crystal size (mm) | 0.24 × 0.22 × 0.16 |
Data collection | |
Diffractometer | Bruker SMART CCD area detector |
Absorption correction | Multi-scan (SADABS; Bruker 2001) |
Tmin, Tmax | 0.930, 0.952 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4385, 3062, 1974 |
Rint | 0.034 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.120, 1.03 |
No. of reflections | 3062 |
No. of parameters | 231 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.25, −0.24 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 2001).
S1—C8 | 1.765 (3) | N4—N3 | 1.322 (3) |
S1—C7 | 1.823 (3) | N4—C13 | 1.414 (4) |
S2—C8 | 1.628 (3) | N3—C10 | 1.322 (4) |
O1—C9 | 1.223 (3) | C6—C7 | 1.518 (4) |
N1—C8 | 1.390 (4) | C9—C10 | 1.460 (4) |
N1—C9 | 1.415 (3) | C10—C11 | 1.448 (4) |
N1—N2 | 1.439 (3) | C11—C12 | 1.489 (4) |
N2—C11 | 1.303 (4) | ||
C8—S1—C7 | 101.82 (14) | O1—C9—N1 | 128.1 (3) |
C8—N1—C9 | 129.6 (2) | O1—C9—C10 | 128.7 (3) |
C8—N1—N2 | 119.0 (2) | N1—C9—C10 | 103.2 (2) |
C9—N1—N2 | 111.3 (2) | N3—C10—C11 | 124.6 (3) |
C11—N2—N1 | 107.2 (2) | N3—C10—C9 | 128.4 (3) |
N3—N4—C13 | 120.3 (3) | C11—C10—C9 | 107.0 (2) |
N4—N3—C10 | 117.7 (3) | N2—C11—C10 | 111.2 (3) |
C1—C6—C7 | 121.7 (3) | N2—C11—C12 | 122.2 (3) |
C6—C7—S1 | 105.5 (2) | C10—C11—C12 | 126.5 (3) |
N1—C8—S1 | 109.79 (19) | C18—C13—N4 | 121.7 (3) |
S2—C8—S1 | 125.74 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4···O1 | 0.90 (3) | 2.13 (3) | 2.823 (4) | 133 (3) |
Subscribe to Acta Crystallographica Section E: Crystallographic Communications
The full text of this article is available to subscribers to the journal.
- Information on subscribing
- Sample issue
- If you have already subscribed, you may need to register
Pyrazolones constitute a group of organic compounds that have been extensively studied due to their properties and applications. Since the synthesis of antipyrine (2,3-dimethyl-1-phenyl-5-pyrazolone) by Knorr (Knorr,1884), a great deal of attention has been paid to the properties of these compounds and a series of drugs have been synthesized. For examples anti-inflammatory drugs (Clark & Bookland, 2005), compounds with antifungal compounds (Omotowa & Mesubi, 1997), antitumor (Caruso et al., 2000) and antihyperglycemic (Kees et al., 1996). Although the use of pyrazolones as drugs has warranted significant attention, many more applications have been devised for this group of molecules outside the pharmaceutical field. They have been applied to the solvent extraction of metal ions (Bose et al., 2005), for analytical purposes (Ito et al., 2001), in the preparation of azo colorants (Whitaker, 1995), as ligands in complexes with catalytic activity (Bao et al., 2006) and in the synthesis of rare earth metal complexes with interesting photophysical properties (Shi et al., 2005). In present work, we report the preparation the title compound (I), and its crystal structure.
Determination of its crystal structure (Fig.1), the title compound shows one larger conjugation system in the molecule with eight carbon atoms (C11–C18),four nitrogen atoms (N1–N4) and one oxygen (O1),which is further confirmed by by UV spectroscopy.
In the title compound, the dihedral angle between this conjugation system with plane of C7—S1—C8═S2 is 13.1°. The benzene ring (C13–C18) is involved in the conjugation system (Table 1). An intramolecular N—H···O═ C hydrogen bonds is also present in the crystal structure of (I) (Table 2).