organic compounds
1-(Biphenyl-4-ylmethylidene)thiosemicarbazide monohydrate
aDepartamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, C/ Julián Clavería, 8, 33006 Oviedo (Asturias), Spain
*Correspondence e-mail: sgg@uniovi.es
In the title compound, C14H13N3S·H2O, the thiosemicarbazide group is nearly planar, with a maximum deviation of 0.072 (2) Å from the ideal least-squares plane, and shows an E conformation. In the crystal packing, the water molecules are involved in an extensive intermolecular N—H⋯O hydrogen-bond network, assisted by O—H⋯S interactions, which link the independent molecules into chains extended along b axis. An intramolecular hydrogen N—H⋯N bond helps to stabilize the molecular conformation.
Related literature
For the biological activity and potential medical applications of thiosemicarbazides, see: West et al. (1991). For thiosemicarbazides as ligands, see: Kowol et al. (2007).
Experimental
Crystal data
|
Refinement
|
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED; program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536810011888/vm2023sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810011888/vm2023Isup2.hkl
A solution of 4-biphenylcarboxaldehyde (1.822 g, 0.01 mol) and thiosemicarbazide (0.91 g, 0.01 mol) in absolute methanol (50 ml) was refluxing for 4 h, in the presence of p-toluenesulfonic acid (0.005 g) as catalyst, with continuous stirring. Completeness of the reaction was TLC controlled indicating the disappearance of the aldehyde spot. On cooling to room temperature the precipitate was filtered off, washed with copious cold methanol and dried in air (yield: 1.581 g, 61%; m.p. 475 K). Yellow single crystals compound were obtained after recrystallization from a solution of chloroform/methanol (3:7 v/v) after 10 days at room temperature.
At the end of the
the highest peak in the electron density was 0.3350 e Å -3, while the deepest hole was -0.3210 e Å -3.Thiosemicarbazides, a class of compounds possessing a wide spectrum of potential medicinal applications, have been studied for their antitumoral, antiviral, antibacterial, antimalarial, antifungal, anti-inflammatory and anti-HIV activities (West et al., 1991). These properties are thought to arise from the metal-chelating ability of these ligands. In almost all cases, the ligands are bidentate and bind to the metal through the S and hydrazinic N atoms, although there are examples of them acting as monodentate ligands binding only through sulfur (Kowol et al., 2007).
The title compound C14H13N3S.H2O was synthesized and its π-electrons are delocalized in the benzaldehyde thiosemicarbazide fragment.
is reported here. This compound is likely to have biomedical properties similar to other nitrogen-sulfur donor ligands. The consists of a single molecule (I), shown in Figure 1. The thiosemicarbazide adopts an E conformation with a trans configuration observed about the C=N bond. The thiosemicarbazide moiety is planar, the C(14)—N(2) (1.341 (3) Å) and N(1)—N(2) (1.371 (3) Å) bond lengths imply significant electron delocalization and the C13/N1/N2/C14/S1 fragment is close to planar (max. deviation = 0.072 (2) Å). The dihedral angle between benzene ring C7/C8/C9/C10/C11/C12 and the moiety C13/N1/N2/C14/S1 is 4.67 (1)°. This value suggests that they are nearly coplanar, andThe water molecules are involved in an extensive intermolecular N(2)—H(14)···O(1) hydrogen bonds and O(1)—H(17)···S(1) interactions (Table 1), which link the molecules into chains extended along the b axis. Sulfur atom S(1) is also involved in N(3)—H(16)···S(1) intermolecular interactions, favoring the crystal grown in the ac plane. An intramolecular N(3)—H(15)···N(1) hydrogen bond (Table 1) contributes to stabilize the π-stacking interaction between parallel molecules (Figure 2).
The intermolecular distance value between ring centroids in the b axis direction (6.350 Å), suggests that there is noFor the biological activity and potential medical applications of thiosemicarbazides, see: West et al. (1991). For thiosemicarbazides as ligands, see: Kowol et al. (2007).
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell
CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED (Oxford Diffraction, 2009); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009)'.Fig. 1. A view of (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. Packing diagram viewed parallel to the b axis. Hydrogen bonds and other intermolecular interactions are indicated by dashed lines. |
C14H13N3S·H2O | F(000) = 576 |
Mr = 273.36 | Dx = 1.316 Mg m−3 |
Monoclinic, P21/c | Melting point: 475 K |
Hall symbol: -P 2ybc | Cu Kα radiation, λ = 1.54180 Å |
a = 14.428 (5) Å | Cell parameters from 3594 reflections |
b = 6.350 (5) Å | θ = 3.9–71.2° |
c = 15.276 (4) Å | µ = 2.05 mm−1 |
β = 99.750 (5)° | T = 293 K |
V = 1379.3 (12) Å3 | Needle, yellow |
Z = 4 | 0.28 × 0.22 × 0.19 mm |
Oxford Diffraction Xcalibur Gemini S diffractometer | 2652 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 2208 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.035 |
Detector resolution: 10.2673 pixels mm-1 | θmax = 71.3°, θmin = 5.9° |
ω scans | h = −17→17 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | k = −6→7 |
Tmin = 0.659, Tmax = 1.000 | l = −17→18 |
8823 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.044 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.145 | w = 1/[σ2(Fo2) + (0.0724P)2 + 0.4128P] where P = (Fo2 + 2Fc2)/3 |
S = 1.12 | (Δ/σ)max = 0.001 |
2652 reflections | Δρmax = 0.34 e Å−3 |
233 parameters | Δρmin = −0.32 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0022 (5) |
C14H13N3S·H2O | V = 1379.3 (12) Å3 |
Mr = 273.36 | Z = 4 |
Monoclinic, P21/c | Cu Kα radiation |
a = 14.428 (5) Å | µ = 2.05 mm−1 |
b = 6.350 (5) Å | T = 293 K |
c = 15.276 (4) Å | 0.28 × 0.22 × 0.19 mm |
β = 99.750 (5)° |
Oxford Diffraction Xcalibur Gemini S diffractometer | 2652 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | 2208 reflections with I > 2σ(I) |
Tmin = 0.659, Tmax = 1.000 | Rint = 0.035 |
8823 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.145 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.12 | Δρmax = 0.34 e Å−3 |
2652 reflections | Δρmin = −0.32 e Å−3 |
233 parameters |
Experimental. CrysAlisPro, Oxford Diffraction Ltd., Version 1.171.34.9 (release 08-12-2009 CrysAlis171 .NET)(compiled Dec 8 2009,17:31:18). Empirical absorption correction using spherical harmonics,implemented in SCALE3 ABSPACK scaling algorithm. |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
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 | 1.03245 (4) | −0.35800 (9) | 0.35948 (4) | 0.0569 (2) | |
N2 | 0.87783 (13) | −0.1308 (3) | 0.31541 (13) | 0.0506 (5) | |
N1 | 0.79162 (12) | −0.0958 (3) | 0.26420 (12) | 0.0512 (5) | |
O1 | 0.95339 (19) | 0.1981 (4) | 0.42955 (18) | 0.0826 (7) | |
C9 | 0.62409 (16) | 0.3346 (4) | 0.22359 (17) | 0.0554 (6) | |
C14 | 0.92353 (15) | −0.3091 (4) | 0.30268 (15) | 0.0518 (5) | |
N3 | 0.87879 (17) | −0.4428 (4) | 0.24280 (16) | 0.0687 (6) | |
C7 | 0.48473 (14) | 0.2361 (4) | 0.12056 (15) | 0.0490 (5) | |
C13 | 0.75391 (15) | 0.0839 (4) | 0.27165 (16) | 0.0526 (5) | |
C10 | 0.66283 (15) | 0.1342 (3) | 0.21913 (15) | 0.0506 (5) | |
C11 | 0.61170 (16) | −0.0131 (4) | 0.16261 (17) | 0.0546 (5) | |
C8 | 0.53638 (16) | 0.3841 (4) | 0.17552 (16) | 0.0543 (6) | |
C6 | 0.39026 (15) | 0.2860 (4) | 0.07042 (15) | 0.0516 (5) | |
C12 | 0.52453 (16) | 0.0367 (4) | 0.11508 (16) | 0.0545 (6) | |
C5 | 0.36951 (18) | 0.4859 (4) | 0.03497 (19) | 0.0639 (6) | |
C1 | 0.31911 (17) | 0.1354 (4) | 0.05726 (18) | 0.0609 (6) | |
C2 | 0.22957 (19) | 0.1843 (5) | 0.01258 (19) | 0.0707 (7) | |
C4 | 0.2796 (2) | 0.5341 (5) | −0.0100 (2) | 0.0748 (8) | |
C3 | 0.2100 (2) | 0.3841 (6) | −0.02047 (18) | 0.0728 (8) | |
H8 | 0.5121 (18) | 0.525 (5) | 0.1814 (18) | 0.063 (7)* | |
H12 | 0.4912 (18) | −0.064 (4) | 0.0746 (17) | 0.060 (7)* | |
H5 | 0.421 (2) | 0.590 (5) | 0.041 (2) | 0.078 (9)* | |
H1 | 0.3329 (17) | −0.005 (4) | 0.0831 (18) | 0.060 (7)* | |
H9 | 0.6583 (17) | 0.436 (4) | 0.2642 (17) | 0.057 (7)* | |
H13 | 0.7819 (17) | 0.187 (4) | 0.3128 (17) | 0.052 (6)* | |
H11 | 0.638 (2) | −0.147 (4) | 0.1583 (19) | 0.066 (8)* | |
H3 | 0.146 (2) | 0.420 (5) | −0.053 (2) | 0.085 (9)* | |
H4 | 0.267 (2) | 0.679 (6) | −0.036 (2) | 0.094 (10)* | |
H2 | 0.180 (2) | 0.076 (6) | 0.004 (2) | 0.094 (11)* | |
H14 | 0.907 (2) | −0.033 (5) | 0.3552 (19) | 0.066 (8)* | |
H15 | 0.825 (2) | −0.392 (5) | 0.211 (2) | 0.072 (8)* | |
H16 | 0.907 (2) | −0.553 (6) | 0.229 (2) | 0.082 (9)* | |
H17 | 0.975 (3) | 0.304 (8) | 0.404 (3) | 0.129 (16)* | |
H18 | 0.959 (3) | 0.210 (7) | 0.481 (3) | 0.120 (17)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0468 (3) | 0.0545 (4) | 0.0666 (4) | 0.0023 (2) | 0.0016 (3) | 0.0058 (3) |
N2 | 0.0410 (9) | 0.0526 (10) | 0.0555 (11) | 0.0008 (8) | 0.0005 (8) | −0.0025 (8) |
N1 | 0.0417 (9) | 0.0596 (11) | 0.0509 (10) | 0.0024 (8) | 0.0035 (7) | −0.0017 (8) |
O1 | 0.1079 (17) | 0.0666 (12) | 0.0679 (14) | −0.0285 (12) | −0.0003 (12) | −0.0015 (11) |
C9 | 0.0459 (12) | 0.0556 (13) | 0.0621 (14) | −0.0015 (10) | 0.0020 (10) | −0.0123 (11) |
C14 | 0.0498 (12) | 0.0509 (12) | 0.0562 (13) | −0.0018 (9) | 0.0134 (10) | 0.0014 (10) |
N3 | 0.0610 (13) | 0.0635 (14) | 0.0759 (15) | 0.0105 (11) | −0.0048 (11) | −0.0176 (11) |
C7 | 0.0431 (10) | 0.0533 (12) | 0.0500 (11) | −0.0014 (9) | 0.0066 (9) | −0.0015 (9) |
C13 | 0.0444 (11) | 0.0564 (13) | 0.0560 (13) | −0.0008 (10) | 0.0052 (9) | −0.0058 (11) |
C10 | 0.0422 (11) | 0.0541 (12) | 0.0552 (12) | −0.0006 (9) | 0.0073 (9) | −0.0027 (10) |
C11 | 0.0490 (12) | 0.0500 (12) | 0.0630 (14) | 0.0034 (10) | 0.0046 (10) | −0.0039 (10) |
C8 | 0.0485 (12) | 0.0516 (13) | 0.0614 (14) | 0.0038 (10) | 0.0057 (10) | −0.0061 (10) |
C6 | 0.0457 (11) | 0.0598 (13) | 0.0490 (12) | 0.0023 (10) | 0.0067 (9) | −0.0032 (10) |
C12 | 0.0491 (12) | 0.0536 (13) | 0.0577 (13) | −0.0037 (10) | 0.0004 (10) | −0.0081 (10) |
C5 | 0.0558 (14) | 0.0617 (15) | 0.0714 (16) | 0.0053 (12) | 0.0030 (11) | 0.0020 (12) |
C1 | 0.0488 (12) | 0.0681 (16) | 0.0627 (15) | −0.0034 (11) | 0.0007 (10) | 0.0016 (12) |
C2 | 0.0510 (14) | 0.092 (2) | 0.0656 (16) | −0.0049 (14) | 0.0009 (11) | −0.0072 (14) |
C4 | 0.0709 (17) | 0.0776 (19) | 0.0721 (18) | 0.0199 (15) | 0.0007 (13) | 0.0035 (14) |
C3 | 0.0559 (15) | 0.102 (2) | 0.0566 (15) | 0.0155 (15) | −0.0005 (11) | −0.0039 (14) |
S1—C14 | 1.690 (2) | C13—H13 | 0.95 (3) |
N2—C14 | 1.341 (3) | C10—C11 | 1.396 (3) |
N2—N1 | 1.371 (3) | C11—C12 | 1.378 (3) |
N2—H14 | 0.92 (3) | C11—H11 | 0.94 (3) |
N1—C13 | 1.278 (3) | C8—H8 | 0.97 (3) |
O1—H17 | 0.86 (5) | C6—C1 | 1.393 (4) |
O1—H18 | 0.77 (5) | C6—C5 | 1.393 (4) |
C9—C8 | 1.387 (3) | C12—H12 | 0.96 (3) |
C9—C10 | 1.397 (3) | C5—C4 | 1.396 (4) |
C9—H9 | 0.97 (3) | C5—H5 | 0.98 (3) |
C14—N3 | 1.332 (3) | C1—C2 | 1.390 (4) |
N3—H15 | 0.90 (3) | C1—H1 | 0.98 (3) |
N3—H16 | 0.86 (4) | C2—C3 | 1.377 (5) |
C7—C8 | 1.390 (3) | C2—H2 | 0.98 (4) |
C7—C12 | 1.399 (3) | C4—C3 | 1.374 (5) |
C7—C6 | 1.480 (3) | C4—H4 | 1.01 (4) |
C13—C10 | 1.454 (3) | C3—H3 | 0.99 (3) |
C14—N2—N1 | 118.4 (2) | C10—C11—H11 | 118.6 (17) |
C14—N2—H14 | 119.4 (17) | C9—C8—C7 | 121.0 (2) |
N1—N2—H14 | 122.1 (17) | C9—C8—H8 | 118.1 (16) |
C13—N1—N2 | 116.9 (2) | C7—C8—H8 | 120.9 (16) |
H17—O1—H18 | 113 (4) | C1—C6—C5 | 117.7 (2) |
C8—C9—C10 | 121.1 (2) | C1—C6—C7 | 121.3 (2) |
C8—C9—H9 | 120.6 (15) | C5—C6—C7 | 121.0 (2) |
C10—C9—H9 | 118.1 (15) | C11—C12—C7 | 121.5 (2) |
N3—C14—N2 | 116.4 (2) | C11—C12—H12 | 120.0 (16) |
N3—C14—S1 | 122.39 (19) | C7—C12—H12 | 118.4 (16) |
N2—C14—S1 | 121.19 (18) | C6—C5—C4 | 120.8 (3) |
C14—N3—H15 | 114.4 (19) | C6—C5—H5 | 118.1 (18) |
C14—N3—H16 | 120 (2) | C4—C5—H5 | 121.1 (18) |
H15—N3—H16 | 124 (3) | C2—C1—C6 | 121.2 (3) |
C8—C7—C12 | 117.7 (2) | C2—C1—H1 | 120.6 (15) |
C8—C7—C6 | 121.3 (2) | C6—C1—H1 | 118.1 (15) |
C12—C7—C6 | 121.0 (2) | C3—C2—C1 | 120.1 (3) |
N1—C13—C10 | 120.4 (2) | C3—C2—H2 | 120 (2) |
N1—C13—H13 | 122.5 (15) | C1—C2—H2 | 120 (2) |
C10—C13—H13 | 117.1 (15) | C3—C4—C5 | 120.4 (3) |
C11—C10—C9 | 117.8 (2) | C3—C4—H4 | 121 (2) |
C11—C10—C13 | 121.9 (2) | C5—C4—H4 | 119 (2) |
C9—C10—C13 | 120.3 (2) | C4—C3—C2 | 119.7 (3) |
C12—C11—C10 | 120.8 (2) | C4—C3—H3 | 119.5 (19) |
C12—C11—H11 | 120.6 (17) | C2—C3—H3 | 120.8 (19) |
C14—N2—N1—C13 | −173.4 (2) | C12—C7—C6—C1 | 35.4 (3) |
N1—N2—C14—N3 | −2.6 (3) | C8—C7—C6—C5 | 36.1 (3) |
N1—N2—C14—S1 | 176.85 (16) | C12—C7—C6—C5 | −144.8 (3) |
N2—N1—C13—C10 | 179.54 (19) | C10—C11—C12—C7 | 0.9 (4) |
C8—C9—C10—C11 | 1.9 (4) | C8—C7—C12—C11 | 0.3 (4) |
C8—C9—C10—C13 | −178.5 (2) | C6—C7—C12—C11 | −178.8 (2) |
N1—C13—C10—C11 | 3.1 (4) | C1—C6—C5—C4 | 1.7 (4) |
N1—C13—C10—C9 | −176.4 (2) | C7—C6—C5—C4 | −178.1 (2) |
C9—C10—C11—C12 | −2.0 (4) | C5—C6—C1—C2 | −1.9 (4) |
C13—C10—C11—C12 | 178.5 (2) | C7—C6—C1—C2 | 177.9 (2) |
C10—C9—C8—C7 | −0.7 (4) | C6—C1—C2—C3 | 0.7 (4) |
C12—C7—C8—C9 | −0.4 (4) | C6—C5—C4—C3 | −0.3 (4) |
C6—C7—C8—C9 | 178.8 (2) | C5—C4—C3—C2 | −1.0 (4) |
C8—C7—C6—C1 | −143.7 (2) | C1—C2—C3—C4 | 0.8 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H14···O1 | 0.92 (3) | 1.91 (3) | 2.819 (3) | 172 (3) |
N3—H15···N1 | 0.91 (3) | 2.14 (3) | 2.585 (3) | 110 (2) |
N3—H16···S1i | 0.86 (4) | 2.59 (4) | 3.422 (3) | 163 (3) |
O1—H17···S1ii | 0.86 (5) | 2.44 (5) | 3.287 (3) | 169 (4) |
O1—H18···S1iii | 0.77 (5) | 2.60 (5) | 3.352 (3) | 164 (5) |
Symmetry codes: (i) −x+2, y−1/2, −z+1/2; (ii) x, y+1, z; (iii) −x+2, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C14H13N3S·H2O |
Mr | 273.36 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 14.428 (5), 6.350 (5), 15.276 (4) |
β (°) | 99.750 (5) |
V (Å3) | 1379.3 (12) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 2.05 |
Crystal size (mm) | 0.28 × 0.22 × 0.19 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Gemini S |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.659, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8823, 2652, 2208 |
Rint | 0.035 |
(sin θ/λ)max (Å−1) | 0.614 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.145, 1.12 |
No. of reflections | 2652 |
No. of parameters | 233 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.34, −0.32 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2009), CrysAlis RED (Oxford Diffraction, 2009), SIR92 (Altomare et al., 1994), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999) and PLATON (Spek, 2009)'.
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H14···O1 | 0.92 (3) | 1.91 (3) | 2.819 (3) | 172 (3) |
N3—H15···N1 | 0.91 (3) | 2.14 (3) | 2.585 (3) | 110 (2) |
N3—H16···S1i | 0.86 (4) | 2.59 (4) | 3.422 (3) | 163 (3) |
O1—H17···S1ii | 0.86 (5) | 2.44 (5) | 3.287 (3) | 169 (4) |
O1—H18···S1iii | 0.77 (5) | 2.60 (5) | 3.352 (3) | 164 (5) |
Symmetry codes: (i) −x+2, y−1/2, −z+1/2; (ii) x, y+1, z; (iii) −x+2, −y, −z+1. |
Acknowledgements
Financial support by the Agencia Española de Cooperación Internacional y Desarrollo (AECID), FEDER funding, Spanish MICINN (MAT2006–01997 and Factoría de Cristalización Consolider Ingenio 2010), Gobierno del Principado de Asturias (PCTI) and Banco Santander is acknowledged. Special thanks go to Professor José Manuel Concellón for his support and scientific advice.
References
Altomare, A., Cascarano, G., Giacovazzo, C., Guagliardi, A., Burla, M. C., Polidori, G. & Camalli, M. (1994). J. Appl. Cryst. 27, 435. CrossRef Web of Science IUCr Journals Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Kowol, C. R., Berger, R., Eichinger, R., Roller, A., Jakupec, M., Schmid, P., Vladimir, B. A. & Keppler, B. (2007). J. Med. Chem. 50, 1254–1265. Web of Science CSD CrossRef PubMed CAS Google Scholar
Oxford Diffraction (2009). CrysAlis CCD, CrysAlis RED and CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, England. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
West, D., Padhye, S. B. & Sonawane, P. S. (1991). Struct. Bond. 76, 1–50. CrossRef CAS Google Scholar
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.
Thiosemicarbazides, a class of compounds possessing a wide spectrum of potential medicinal applications, have been studied for their antitumoral, antiviral, antibacterial, antimalarial, antifungal, anti-inflammatory and anti-HIV activities (West et al., 1991). These properties are thought to arise from the metal-chelating ability of these ligands. In almost all cases, the ligands are bidentate and bind to the metal through the S and hydrazinic N atoms, although there are examples of them acting as monodentate ligands binding only through sulfur (Kowol et al., 2007).
The title compound C14H13N3S.H2O was synthesized and its crystal structure is reported here. This compound is likely to have biomedical properties similar to other nitrogen-sulfur donor ligands. The asymmetric unit consists of a single molecule (I), shown in Figure 1. The thiosemicarbazide adopts an E conformation with a trans configuration observed about the C=N bond. The thiosemicarbazide moiety is planar, the C(14)—N(2) (1.341 (3) Å) and N(1)—N(2) (1.371 (3) Å) bond lengths imply significant electron delocalization and the C13/N1/N2/C14/S1 fragment is close to planar (max. deviation = 0.072 (2) Å). The dihedral angle between benzene ring C7/C8/C9/C10/C11/C12 and the moiety C13/N1/N2/C14/S1 is 4.67 (1)°. This value suggests that they are nearly coplanar, and π-electrons are delocalized in the benzaldehyde thiosemicarbazide fragment.
The water molecules are involved in an extensive intermolecular N(2)—H(14)···O(1) hydrogen bonds and O(1)—H(17)···S(1) interactions (Table 1), which link the molecules into chains extended along the b axis. Sulfur atom S(1) is also involved in N(3)—H(16)···S(1) intermolecular interactions, favoring the crystal grown in the ac plane. An intramolecular N(3)—H(15)···N(1) hydrogen bond (Table 1) contributes to stabilize the molecular conformation. The intermolecular distance value between ring centroids in the b axis direction (6.350 Å), suggests that there is no π-stacking interaction between parallel molecules (Figure 2).