organic compounds
(E)-1-(3-Cyanobenzylidene)thiosemicarbazide N,N-dimethylformamide solvate
aDepartment of Chemistry, Nanjing Xiaozhuang University, Nanjing 210017, People's Republic of China
*Correspondence e-mail: shimei2008@live.cn
The title compound, C9H8N4S·C3H7NO, adopts an E configuration about both the C=N and C—N bonds. Intermolecular N—H⋯O hydrogen bonding links the compound to the DMF solvent molecule. The crystal packing is characterized by chains of molecules linked by intermolecular N—H⋯S hydrogen-bonding interactions.
Related literature
For the biological activity of thiosemicarbazones, see: Lovejoy & Richardson et al. (2002). For a related structure, see: Wu et al. (2009). For comparitive geometrical parameters, see: Sutton et al. (1965).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S160053681000214X/pv2253sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681000214X/pv2253Isup2.hkl
The title compound was synthesized by refluxing 3-cyanobenzaldehyde (2.1 g, 16 mmol) and thiosemicarbazide (1.46 g, 16 mmol) in absolute ethanol (50 ml) for 10 h. After cooling to room temperature, the white solid formed was isolated and dried under vacuum. The title compound was isolated using
(petroleum ether: ethyl acetate-2:1). Single crystals suitable for X-ray were obtained from slow evaporation of DMF solution.H atoms were placed in calculated positions and refined using a riding model, with N—H = 0.86 Å, C—H = 0.93–0.96 Å and with Uiso(H) = 1.2 and 1.5 times Ueq of nonmethyl and methyl type H-atoms.
The antiproliferative activity of a series of thiosemicarbazones has been reported (Lovejoy & Richardson, 2002). As a research on thiosemicarbazones, the synthesis and
of a new Schiff base compound derived from thiosemicarbazide and 3-cyanobenzaldehyde has been presented in this article. The of 4-cyanobenzaldehyde thiosemicarbazone which is closely related to the title compound has been reported recently (Wu et al. 2009).The thiosemicarbazone moiety in the title compound (Fig. 1) is nearly planar and shows an E configuration about both the C9—N3 and C8═N2 bonds. The C—S bond distance of 1.680 (2) Å agrees well with similar bonds in related compounds, being intermediate between 1.82 Å for a C—S single bond and 1.56 Å for a C═S double bond (Sutton et al. 1965). All the bond distances except for the C6—C9 (bond length, 1.448 (3) Å) fall within the normal range. The intermolecular N—H···O hydrogen bond stabilizes the In the crystal packing, adjacent molecules are linked by N—H···S hydrogen bonds (Table 1 and Fig. 2) to form chains running parallel to the a axis. Weak interactions of the type C—H···O are also present in the structure.
For the biological activity of thiosemicarbazones, see: Lovejoy & Richardson et al. (2002). For a related structure, see: Wu et al. (2009). For comparitive geometrical parameters, see: Sutton et al. (1965).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C9H8N4S·C3H7NO | F(000) = 584 |
Mr = 277.35 | Dx = 1.263 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 2851 reflections |
a = 7.312 (7) Å | θ = 2.3–27.4° |
b = 8.945 (3) Å | µ = 0.22 mm−1 |
c = 22.316 (19) Å | T = 293 K |
β = 92.12 (2)° | Block, pale yellow |
V = 1458.6 (19) Å3 | 0.20 × 0.20 × 0.20 mm |
Z = 4 |
Rigaku Mercury2 diffractometer | 3280 independent reflections |
Radiation source: fine-focus sealed tube | 2065 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.052 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.4°, θmin = 2.5° |
CCD_Profile_fitting scans | h = −7→9 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −11→11 |
Tmin = 0.742, Tmax = 1.000 | l = −28→24 |
9561 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) = 0.109 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.020P)2 + 0.850P] where P = (Fo2 + 2Fc2)/3 |
3280 reflections | (Δ/σ)max = 0.001 |
172 parameters | Δρmax = 0.18 e Å−3 |
0 restraints | Δρmin = −0.20 e Å−3 |
C9H8N4S·C3H7NO | V = 1458.6 (19) Å3 |
Mr = 277.35 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.312 (7) Å | µ = 0.22 mm−1 |
b = 8.945 (3) Å | T = 293 K |
c = 22.316 (19) Å | 0.20 × 0.20 × 0.20 mm |
β = 92.12 (2)° |
Rigaku Mercury2 diffractometer | 3280 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 2065 reflections with I > 2σ(I) |
Tmin = 0.742, Tmax = 1.000 | Rint = 0.052 |
9561 measured reflections |
R[F2 > 2σ(F2)] = 0.055 | 0 restraints |
wR(F2) = 0.109 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.18 e Å−3 |
3280 reflections | Δρmin = −0.20 e Å−3 |
172 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 | 0.60691 (11) | 0.46135 (8) | 0.74146 (3) | 0.0636 (2) | |
N2 | 0.7389 (2) | 0.40996 (19) | 0.57477 (8) | 0.0425 (4) | |
N3 | 0.6727 (2) | 0.4707 (2) | 0.62652 (8) | 0.0451 (5) | |
H3A | 0.6198 | 0.5566 | 0.6258 | 0.054* | |
C6 | 0.8765 (3) | 0.2925 (2) | 0.46844 (10) | 0.0430 (5) | |
H6A | 0.8857 | 0.2327 | 0.5025 | 0.052* | |
N4 | 0.7782 (3) | 0.2634 (2) | 0.67556 (9) | 0.0585 (6) | |
H4A | 0.8181 | 0.2320 | 0.6420 | 0.070* | |
H4B | 0.7939 | 0.2102 | 0.7074 | 0.070* | |
C8 | 0.7256 (3) | 0.4903 (2) | 0.52748 (10) | 0.0428 (5) | |
H8A | 0.6724 | 0.5846 | 0.5288 | 0.051* | |
C9 | 0.6924 (3) | 0.3936 (2) | 0.67810 (10) | 0.0441 (5) | |
C7 | 1.0229 (3) | 0.0938 (3) | 0.41270 (10) | 0.0518 (6) | |
C1 | 0.7947 (3) | 0.4329 (2) | 0.47102 (9) | 0.0402 (5) | |
N1 | 1.0774 (3) | −0.0249 (3) | 0.41178 (10) | 0.0714 (7) | |
C5 | 0.9444 (3) | 0.2423 (2) | 0.41459 (10) | 0.0444 (5) | |
C2 | 0.7832 (3) | 0.5198 (3) | 0.41938 (10) | 0.0501 (6) | |
H2B | 0.7295 | 0.6140 | 0.4207 | 0.060* | |
C3 | 0.8504 (3) | 0.4685 (3) | 0.36610 (10) | 0.0565 (6) | |
H3B | 0.8407 | 0.5281 | 0.3320 | 0.068* | |
C4 | 0.9316 (3) | 0.3298 (3) | 0.36311 (10) | 0.0535 (6) | |
H4C | 0.9770 | 0.2953 | 0.3273 | 0.064* | |
N5 | 0.4289 (3) | 0.9814 (2) | 0.63750 (9) | 0.0565 (5) | |
C10 | 0.4945 (4) | 0.8452 (3) | 0.64567 (13) | 0.0641 (7) | |
H10A | 0.4904 | 0.8055 | 0.6841 | 0.077* | |
O1 | 0.5606 (3) | 0.76602 (19) | 0.60695 (9) | 0.0718 (6) | |
C11 | 0.4348 (4) | 1.0502 (3) | 0.57878 (13) | 0.0756 (8) | |
H11A | 0.4869 | 0.9813 | 0.5512 | 0.113* | |
H11B | 0.5085 | 1.1389 | 0.5813 | 0.113* | |
H11C | 0.3129 | 1.0759 | 0.5650 | 0.113* | |
C12 | 0.3501 (4) | 1.0680 (4) | 0.68517 (15) | 0.0925 (11) | |
H12A | 0.3521 | 1.0099 | 0.7214 | 0.139* | |
H12B | 0.2261 | 1.0936 | 0.6740 | 0.139* | |
H12C | 0.4202 | 1.1577 | 0.6917 | 0.139* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0917 (5) | 0.0516 (4) | 0.0489 (4) | −0.0029 (4) | 0.0207 (3) | −0.0114 (3) |
N2 | 0.0512 (12) | 0.0372 (9) | 0.0396 (10) | 0.0037 (8) | 0.0069 (9) | −0.0025 (8) |
N3 | 0.0550 (12) | 0.0366 (9) | 0.0444 (11) | 0.0082 (9) | 0.0102 (9) | −0.0053 (8) |
C6 | 0.0502 (14) | 0.0383 (12) | 0.0403 (12) | 0.0002 (10) | 0.0011 (10) | 0.0022 (9) |
N4 | 0.0848 (16) | 0.0461 (11) | 0.0454 (12) | 0.0152 (11) | 0.0121 (11) | 0.0056 (9) |
C8 | 0.0450 (13) | 0.0359 (12) | 0.0477 (14) | 0.0064 (10) | 0.0030 (10) | −0.0018 (10) |
C9 | 0.0508 (15) | 0.0351 (11) | 0.0465 (13) | −0.0047 (10) | 0.0054 (11) | −0.0038 (10) |
C7 | 0.0604 (16) | 0.0490 (14) | 0.0468 (14) | 0.0050 (12) | 0.0114 (12) | −0.0048 (11) |
C1 | 0.0421 (13) | 0.0373 (12) | 0.0413 (12) | 0.0011 (9) | 0.0014 (10) | −0.0015 (9) |
N1 | 0.0898 (18) | 0.0539 (14) | 0.0718 (16) | 0.0190 (13) | 0.0214 (13) | −0.0032 (12) |
C5 | 0.0486 (14) | 0.0392 (12) | 0.0454 (13) | 0.0005 (10) | 0.0031 (11) | −0.0050 (10) |
C2 | 0.0603 (16) | 0.0407 (12) | 0.0492 (14) | 0.0063 (11) | −0.0003 (12) | 0.0025 (11) |
C3 | 0.0730 (18) | 0.0554 (15) | 0.0408 (14) | 0.0039 (13) | 0.0006 (12) | 0.0081 (12) |
C4 | 0.0642 (17) | 0.0558 (15) | 0.0411 (14) | −0.0010 (13) | 0.0075 (12) | −0.0042 (11) |
N5 | 0.0650 (14) | 0.0431 (11) | 0.0621 (14) | 0.0022 (10) | 0.0117 (11) | −0.0079 (10) |
C10 | 0.074 (2) | 0.0515 (16) | 0.0665 (18) | −0.0059 (14) | 0.0011 (15) | 0.0052 (13) |
O1 | 0.0870 (15) | 0.0432 (10) | 0.0860 (14) | 0.0116 (10) | 0.0131 (11) | −0.0066 (10) |
C11 | 0.088 (2) | 0.0541 (17) | 0.086 (2) | 0.0066 (15) | 0.0132 (17) | 0.0126 (15) |
C12 | 0.095 (2) | 0.083 (2) | 0.102 (3) | −0.0076 (19) | 0.034 (2) | −0.0443 (19) |
S1—C9 | 1.680 (2) | C2—C3 | 1.382 (3) |
N2—C8 | 1.277 (3) | C2—H2B | 0.9300 |
N2—N3 | 1.380 (2) | C3—C4 | 1.378 (3) |
N3—C9 | 1.345 (3) | C3—H3B | 0.9300 |
N3—H3A | 0.8600 | C4—H4C | 0.9300 |
C6—C5 | 1.392 (3) | N5—C10 | 1.320 (3) |
C6—C1 | 1.393 (3) | N5—C11 | 1.450 (3) |
C6—H6A | 0.9300 | N5—C12 | 1.452 (3) |
N4—C9 | 1.325 (3) | C10—O1 | 1.230 (3) |
N4—H4A | 0.8600 | C10—H10A | 0.9300 |
N4—H4B | 0.8600 | C11—H11A | 0.9600 |
C8—C1 | 1.467 (3) | C11—H11B | 0.9600 |
C8—H8A | 0.9300 | C11—H11C | 0.9600 |
C7—N1 | 1.135 (3) | C12—H12A | 0.9600 |
C7—C5 | 1.447 (3) | C12—H12B | 0.9600 |
C1—C2 | 1.390 (3) | C12—H12C | 0.9600 |
C5—C4 | 1.390 (3) | ||
C8—N2—N3 | 116.85 (18) | C1—C2—H2B | 119.5 |
C9—N3—N2 | 118.97 (18) | C4—C3—C2 | 120.5 (2) |
C9—N3—H3A | 120.5 | C4—C3—H3B | 119.7 |
N2—N3—H3A | 120.5 | C2—C3—H3B | 119.7 |
C5—C6—C1 | 119.6 (2) | C3—C4—C5 | 118.9 (2) |
C5—C6—H6A | 120.2 | C3—C4—H4C | 120.6 |
C1—C6—H6A | 120.2 | C5—C4—H4C | 120.6 |
C9—N4—H4A | 120.0 | C10—N5—C11 | 119.6 (2) |
C9—N4—H4B | 120.0 | C10—N5—C12 | 122.9 (3) |
H4A—N4—H4B | 120.0 | C11—N5—C12 | 117.5 (2) |
N2—C8—C1 | 119.7 (2) | O1—C10—N5 | 125.8 (3) |
N2—C8—H8A | 120.2 | O1—C10—H10A | 117.1 |
C1—C8—H8A | 120.2 | N5—C10—H10A | 117.1 |
N4—C9—N3 | 116.8 (2) | N5—C11—H11A | 109.5 |
N4—C9—S1 | 123.00 (18) | N5—C11—H11B | 109.5 |
N3—C9—S1 | 120.24 (17) | H11A—C11—H11B | 109.5 |
N1—C7—C5 | 177.1 (3) | N5—C11—H11C | 109.5 |
C2—C1—C6 | 118.9 (2) | H11A—C11—H11C | 109.5 |
C2—C1—C8 | 120.3 (2) | H11B—C11—H11C | 109.5 |
C6—C1—C8 | 120.8 (2) | N5—C12—H12A | 109.5 |
C4—C5—C6 | 121.1 (2) | N5—C12—H12B | 109.5 |
C4—C5—C7 | 120.5 (2) | H12A—C12—H12B | 109.5 |
C6—C5—C7 | 118.4 (2) | N5—C12—H12C | 109.5 |
C3—C2—C1 | 121.0 (2) | H12A—C12—H12C | 109.5 |
C3—C2—H2B | 119.5 | H12B—C12—H12C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.86 | 1.96 | 2.795 (3) | 162 |
N4—H4A···N2 | 0.86 | 2.25 | 2.610 (3) | 105 |
N4—H4A···N1i | 0.86 | 2.35 | 3.101 (3) | 146 |
N4—H4B···S1ii | 0.86 | 2.59 | 3.364 (2) | 150 |
C8—H8A···O1 | 0.93 | 2.54 | 3.293 (3) | 138 |
C11—H11A···O1 | 0.96 | 2.34 | 2.767 (3) | 106 |
Symmetry codes: (i) −x+2, −y, −z+1; (ii) −x+3/2, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C9H8N4S·C3H7NO |
Mr | 277.35 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 7.312 (7), 8.945 (3), 22.316 (19) |
β (°) | 92.12 (2) |
V (Å3) | 1458.6 (19) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.22 |
Crystal size (mm) | 0.20 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Rigaku Mercury2 |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.742, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9561, 3280, 2065 |
Rint | 0.052 |
(sin θ/λ)max (Å−1) | 0.648 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.055, 0.109, 1.01 |
No. of reflections | 3280 |
No. of parameters | 172 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.18, −0.20 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.86 | 1.96 | 2.795 (3) | 162.0 |
N4—H4A···N2 | 0.86 | 2.25 | 2.610 (3) | 105.2 |
N4—H4A···N1i | 0.86 | 2.35 | 3.101 (3) | 145.9 |
N4—H4B···S1ii | 0.86 | 2.59 | 3.364 (2) | 150.0 |
C8—H8A···O1 | 0.93 | 2.54 | 3.293 (3) | 138.4 |
C11—H11A···O1 | 0.96 | 2.34 | 2.767 (3) | 106.0 |
Symmetry codes: (i) −x+2, −y, −z+1; (ii) −x+3/2, y−1/2, −z+3/2. |
Acknowledgements
This work was supported by the Natural Science Foundation (2008NXY25) of Nanjing Xiaozhuang University.
References
Lovejoy, D. B. & Richardson, D. R. (2002). Blood, 100, 666–676. Web of Science CrossRef PubMed CAS Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Sutton, L. E. (1965). Tables of Interatomic Distances and Configurations in Molecules and Ions, Suppl. London: The Chemical Society. Google Scholar
Wu, D.-H., Zhang, Y.-H., Li, Z.-F. & Li, Y.-H. (2009). Acta Cryst. E65, o107. Web of Science CSD CrossRef IUCr Journals 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.
The antiproliferative activity of a series of thiosemicarbazones has been reported (Lovejoy & Richardson, 2002). As a research on thiosemicarbazones, the synthesis and crystal structure of a new Schiff base compound derived from thiosemicarbazide and 3-cyanobenzaldehyde has been presented in this article. The crystal structure of 4-cyanobenzaldehyde thiosemicarbazone which is closely related to the title compound has been reported recently (Wu et al. 2009).
The thiosemicarbazone moiety in the title compound (Fig. 1) is nearly planar and shows an E configuration about both the C9—N3 and C8═N2 bonds. The C—S bond distance of 1.680 (2) Å agrees well with similar bonds in related compounds, being intermediate between 1.82 Å for a C—S single bond and 1.56 Å for a C═S double bond (Sutton et al. 1965). All the bond distances except for the C6—C9 (bond length, 1.448 (3) Å) fall within the normal range. The intermolecular N—H···O hydrogen bond stabilizes the molecular conformation. In the crystal packing, adjacent molecules are linked by N—H···S hydrogen bonds (Table 1 and Fig. 2) to form chains running parallel to the a axis. Weak interactions of the type C—H···O are also present in the structure.