organic compounds
Thiophene-2-carbaldehyde 2,4-dinitrophenylhydrazone
aKey Laboratory of Surface and Interface Science of Henan, School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China, and bDepartment of Materials and Chemical Engineering, Guiling University of Technology, People's Republic of China
*Correspondence e-mail: yinck@263.net
In the approximately planar molecule of the title compound, C11H8N4O4S, the dihedral angle between the thiophene and benzene rings is 5.73 (10)°. In the bifurcated inter/intramolecular N—H⋯(O,O) hydrogen bonds are present. The intermolecular links lead to inversion dimers containing an R22(12) graph-set motif.
Related literature
For general background, see: Okabe et al. (1993). For graph-set notation, see: Etter et al. (1990); Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL and PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536808038397/dn2406sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808038397/dn2406Isup2.hkl
2,4-dinitrophenylhydrazine(1 mmol, 0.198 g) was dissolved in anhydrous methanol, H2SO4 (98% 0.5 ml) was added to this, the mixture was stirred for several minitutes at 351 K, thiophene-2-carbaldehyde (1 mmol 0.112 g) in methanol (8 ml) was added dropwise and the mixture was stirred at refluxing temperature for 2 h. The product was isolated and recrystallized in methanol, purple single crystals of (I) was obtained after 5 d.
All H atoms were placed in calculated positions and treated as riding with C—H=0.93Å (aromatic) and N—H=0.86Å with Uiso(H)=1.2Ueq(C or N).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C11H8N4O4S | F(000) = 600 |
Mr = 292.27 | Dx = 1.621 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 5391 reflections |
a = 4.8994 (17) Å | θ = 2.3–27.4° |
b = 9.520 (3) Å | µ = 0.29 mm−1 |
c = 25.708 (8) Å | T = 291 K |
β = 92.71 (2)° | Block, purple |
V = 1197.7 (7) Å3 | 0.30 × 0.26 × 0.24 mm |
Z = 4 |
Bruker SMART APEX CCD diffractometer | 2285 independent reflections |
Radiation source: sealed tube | 1718 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.047 |
ϕ and ω scans | θmax = 26.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −6→5 |
Tmin = 0.915, Tmax = 0.929 | k = −11→11 |
11010 measured reflections | l = −31→29 |
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) = 0.087 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | w = 1/[σ2(Fo2) + (0.04P)2] where P = (Fo2 + 2Fc2)/3 |
2285 reflections | (Δ/σ)max < 0.001 |
184 parameters | Δρmax = 0.16 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
C11H8N4O4S | V = 1197.7 (7) Å3 |
Mr = 292.27 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 4.8994 (17) Å | µ = 0.29 mm−1 |
b = 9.520 (3) Å | T = 291 K |
c = 25.708 (8) Å | 0.30 × 0.26 × 0.24 mm |
β = 92.71 (2)° |
Bruker SMART APEX CCD diffractometer | 2285 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 1718 reflections with I > 2σ(I) |
Tmin = 0.915, Tmax = 0.929 | Rint = 0.047 |
11010 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.087 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | Δρmax = 0.16 e Å−3 |
2285 reflections | Δρmin = −0.19 e Å−3 |
184 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 | 0.1154 (4) | 0.2360 (2) | 0.04553 (7) | 0.0342 (4) | |
C2 | −0.0759 (4) | 0.1287 (2) | 0.04720 (7) | 0.0350 (4) | |
H2 | −0.2010 | 0.1150 | 0.0193 | 0.042* | |
C3 | −0.0801 (4) | 0.04351 (18) | 0.08984 (7) | 0.0315 (4) | |
C4 | 0.1065 (4) | 0.0673 (2) | 0.13207 (7) | 0.0383 (5) | |
H4 | 0.1048 | 0.0087 | 0.1610 | 0.046* | |
C5 | 0.2882 (4) | 0.1738 (2) | 0.13141 (7) | 0.0350 (4) | |
H5 | 0.4096 | 0.1870 | 0.1599 | 0.042* | |
C6 | 0.2980 (4) | 0.26512 (18) | 0.08856 (7) | 0.0291 (4) | |
C7 | 0.8165 (4) | 0.49823 (19) | 0.13079 (7) | 0.0389 (5) | |
H7 | 0.7974 | 0.5614 | 0.1033 | 0.047* | |
C8 | 1.0163 (4) | 0.52284 (19) | 0.17283 (7) | 0.0341 (4) | |
C9 | 1.1994 (5) | 0.6353 (2) | 0.17481 (8) | 0.0418 (5) | |
H9 | 1.2066 | 0.7050 | 0.1496 | 0.050* | |
C10 | 1.3738 (5) | 0.6289 (2) | 0.22076 (9) | 0.0465 (5) | |
H10 | 1.5107 | 0.6939 | 0.2290 | 0.056* | |
C11 | 1.3173 (5) | 0.5174 (2) | 0.25090 (8) | 0.0522 (6) | |
H11 | 1.4113 | 0.4975 | 0.2823 | 0.063* | |
N1 | 0.0973 (4) | 0.31477 (18) | 0.00000 (6) | 0.0394 (4) | |
N2 | −0.2778 (4) | −0.06932 (17) | 0.09065 (7) | 0.0414 (4) | |
N3 | 0.4846 (4) | 0.37052 (17) | 0.08923 (6) | 0.0378 (4) | |
H1 | 0.483 (5) | 0.426 (2) | 0.0624 (9) | 0.045* | |
N4 | 0.6631 (3) | 0.38663 (15) | 0.13180 (6) | 0.0321 (4) | |
O1 | 0.2484 (4) | 0.41150 (16) | −0.00353 (6) | 0.0545 (4) | |
O2 | −0.0594 (3) | 0.29004 (14) | −0.03604 (5) | 0.0461 (4) | |
O3 | −0.4272 (3) | −0.08987 (16) | 0.05310 (6) | 0.0526 (4) | |
O4 | −0.2847 (3) | −0.13710 (15) | 0.12986 (6) | 0.0513 (4) | |
S1 | 1.05706 (12) | 0.41736 (6) | 0.22559 (2) | 0.04762 (18) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0302 (10) | 0.0438 (10) | 0.0277 (10) | −0.0016 (8) | −0.0096 (8) | −0.0034 (7) |
C2 | 0.0330 (10) | 0.0410 (10) | 0.0303 (10) | −0.0007 (8) | −0.0046 (8) | −0.0039 (7) |
C3 | 0.0326 (10) | 0.0290 (8) | 0.0325 (9) | −0.0001 (7) | −0.0024 (8) | −0.0025 (7) |
C4 | 0.0414 (12) | 0.0417 (10) | 0.0314 (10) | 0.0038 (8) | −0.0038 (9) | 0.0075 (8) |
C5 | 0.0259 (10) | 0.0463 (10) | 0.0323 (10) | 0.0090 (8) | −0.0035 (8) | −0.0005 (8) |
C6 | 0.0270 (9) | 0.0339 (8) | 0.0262 (9) | 0.0002 (7) | −0.0004 (7) | −0.0062 (7) |
C7 | 0.0510 (12) | 0.0394 (10) | 0.0257 (9) | −0.0026 (9) | −0.0057 (8) | −0.0013 (8) |
C8 | 0.0316 (10) | 0.0353 (9) | 0.0349 (9) | −0.0023 (8) | −0.0025 (8) | −0.0079 (7) |
C9 | 0.0473 (13) | 0.0361 (9) | 0.0412 (11) | −0.0042 (9) | −0.0073 (9) | −0.0059 (8) |
C10 | 0.0387 (12) | 0.0416 (10) | 0.0581 (14) | −0.0045 (9) | −0.0105 (10) | −0.0220 (10) |
C11 | 0.0629 (15) | 0.0558 (13) | 0.0357 (11) | 0.0052 (11) | −0.0222 (11) | −0.0131 (9) |
N1 | 0.0383 (10) | 0.0452 (9) | 0.0335 (9) | −0.0104 (8) | −0.0120 (8) | −0.0013 (7) |
N2 | 0.0360 (10) | 0.0421 (9) | 0.0453 (10) | −0.0026 (7) | −0.0074 (8) | 0.0047 (8) |
N3 | 0.0387 (10) | 0.0443 (9) | 0.0290 (9) | −0.0077 (7) | −0.0126 (7) | −0.0001 (7) |
N4 | 0.0345 (8) | 0.0344 (8) | 0.0266 (8) | −0.0003 (6) | −0.0087 (7) | −0.0040 (6) |
O1 | 0.0659 (11) | 0.0525 (9) | 0.0435 (9) | −0.0225 (8) | −0.0163 (8) | 0.0158 (7) |
O2 | 0.0471 (9) | 0.0505 (8) | 0.0383 (8) | −0.0317 (7) | −0.0222 (7) | 0.0182 (6) |
O3 | 0.0488 (10) | 0.0534 (9) | 0.0537 (9) | −0.0260 (7) | −0.0185 (8) | −0.0002 (7) |
O4 | 0.0566 (10) | 0.0451 (8) | 0.0519 (9) | −0.0169 (7) | −0.0008 (8) | 0.0131 (7) |
S1 | 0.0480 (3) | 0.0553 (3) | 0.0385 (3) | −0.0071 (2) | −0.0093 (2) | 0.0040 (2) |
C1—C2 | 1.388 (3) | C8—C9 | 1.396 (3) |
C1—N1 | 1.389 (2) | C8—S1 | 1.692 (2) |
C1—C6 | 1.417 (2) | C9—C10 | 1.426 (3) |
C2—C3 | 1.365 (3) | C9—H9 | 0.9300 |
C2—H2 | 0.9300 | C10—C11 | 1.351 (3) |
C3—C4 | 1.404 (2) | C10—H10 | 0.9300 |
C3—N2 | 1.447 (2) | C11—S1 | 1.696 (2) |
C4—C5 | 1.350 (3) | C11—H11 | 0.9300 |
C4—H4 | 0.9300 | N1—O1 | 1.188 (2) |
C5—C6 | 1.406 (3) | N1—O2 | 1.1983 (19) |
C5—H5 | 0.9300 | N2—O4 | 1.199 (2) |
C6—N3 | 1.357 (2) | N2—O3 | 1.199 (2) |
C7—N4 | 1.302 (2) | N3—N4 | 1.377 (2) |
C7—C8 | 1.442 (2) | N3—H1 | 0.87 (2) |
C7—H7 | 0.9300 | ||
C2—C1—N1 | 114.01 (15) | C9—C8—S1 | 112.01 (14) |
C2—C1—C6 | 121.47 (17) | C7—C8—S1 | 123.66 (14) |
N1—C1—C6 | 124.40 (17) | C8—C9—C10 | 110.86 (19) |
C3—C2—C1 | 119.87 (17) | C8—C9—H9 | 124.6 |
C3—C2—H2 | 120.1 | C10—C9—H9 | 124.6 |
C1—C2—H2 | 120.1 | C11—C10—C9 | 112.19 (18) |
C2—C3—C4 | 119.41 (17) | C11—C10—H10 | 123.9 |
C2—C3—N2 | 119.22 (15) | C9—C10—H10 | 123.9 |
C4—C3—N2 | 121.36 (16) | C10—C11—S1 | 113.08 (15) |
C5—C4—C3 | 121.14 (18) | C10—C11—H11 | 123.5 |
C5—C4—H4 | 119.4 | S1—C11—H11 | 123.5 |
C3—C4—H4 | 119.4 | O1—N1—O2 | 118.16 (16) |
C4—C5—C6 | 121.43 (17) | O1—N1—C1 | 117.89 (14) |
C4—C5—H5 | 119.3 | O2—N1—C1 | 123.94 (16) |
C6—C5—H5 | 119.3 | O4—N2—O3 | 123.26 (17) |
N3—C6—C5 | 119.70 (15) | O4—N2—C3 | 117.21 (15) |
N3—C6—C1 | 123.69 (17) | O3—N2—C3 | 119.53 (16) |
C5—C6—C1 | 116.55 (17) | C6—N3—N4 | 119.65 (16) |
N4—C7—C8 | 119.31 (16) | C6—N3—H1 | 117.6 (14) |
N4—C7—H7 | 120.3 | N4—N3—H1 | 122.8 (14) |
C8—C7—H7 | 120.3 | C7—N4—N3 | 114.87 (15) |
C9—C8—C7 | 124.33 (18) | C8—S1—C11 | 91.85 (11) |
N1—C1—C2—C3 | 180.00 (18) | C8—C9—C10—C11 | −0.6 (3) |
C6—C1—C2—C3 | −3.8 (3) | C9—C10—C11—S1 | 0.1 (3) |
C1—C2—C3—C4 | 1.3 (3) | C2—C1—N1—O1 | 177.51 (19) |
C1—C2—C3—N2 | −178.99 (18) | C6—C1—N1—O1 | 1.5 (3) |
C2—C3—C4—C5 | 0.6 (3) | C2—C1—N1—O2 | −3.3 (3) |
N2—C3—C4—C5 | −179.16 (18) | C6—C1—N1—O2 | −179.4 (2) |
C3—C4—C5—C6 | 0.1 (3) | C2—C3—N2—O4 | −176.10 (19) |
C4—C5—C6—N3 | −179.66 (19) | C4—C3—N2—O4 | 3.6 (3) |
C4—C5—C6—C1 | −2.5 (3) | C2—C3—N2—O3 | 3.1 (3) |
C2—C1—C6—N3 | −178.60 (18) | C4—C3—N2—O3 | −177.21 (19) |
N1—C1—C6—N3 | −2.8 (3) | C5—C6—N3—N4 | 0.2 (3) |
C2—C1—C6—C5 | 4.3 (3) | C1—C6—N3—N4 | −176.76 (17) |
N1—C1—C6—C5 | −179.88 (19) | C8—C7—N4—N3 | −178.20 (17) |
N4—C7—C8—C9 | 177.13 (19) | C6—N3—N4—C7 | −173.88 (18) |
N4—C7—C8—S1 | −2.5 (3) | C9—C8—S1—C11 | −0.66 (18) |
C7—C8—C9—C10 | −178.8 (2) | C7—C8—S1—C11 | 179.01 (19) |
S1—C8—C9—C10 | 0.8 (2) | C10—C11—S1—C8 | 0.3 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H1···O1i | 0.87 (2) | 2.57 (2) | 3.338 (2) | 148.2 (19) |
N3—H1···O1 | 0.87 (2) | 2.01 (2) | 2.630 (2) | 127.4 (19) |
Symmetry code: (i) −x+1, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C11H8N4O4S |
Mr | 292.27 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 291 |
a, b, c (Å) | 4.8994 (17), 9.520 (3), 25.708 (8) |
β (°) | 92.71 (2) |
V (Å3) | 1197.7 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.29 |
Crystal size (mm) | 0.30 × 0.26 × 0.24 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.915, 0.929 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11010, 2285, 1718 |
Rint | 0.047 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.087, 1.02 |
No. of reflections | 2285 |
No. of parameters | 184 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.16, −0.19 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H1···O1i | 0.87 (2) | 2.57 (2) | 3.338 (2) | 148.2 (19) |
N3—H1···O1 | 0.87 (2) | 2.01 (2) | 2.630 (2) | 127.4 (19) |
Symmetry code: (i) −x+1, −y+1, −z. |
Acknowledgements
The authors express their deep appreciation to the Startup Fund for PhDs of Natural Scientific Research of Zhengzhou University of Light Industry (grant No. 2005001) and the Startup Fund for Masters of Natural Scientific Research of Zhengzhou University of Light Industry (grant No. 000455).
References
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555–1573. CrossRef CAS Web of Science Google Scholar
Bruker (2000). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Etter, M. C., MacDonald, J. C. & Bernstein, J. (1990). Acta Cryst. B46, 256–262. CrossRef CAS Web of Science IUCr Journals Google Scholar
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2,4-Dinitrophenylhydrazine is a reagent which is widely used for condensation with aldehydes and ketones. Several phenylhydrazone derivatives have been shown to be potentially DNA-damaging and are mutagenic agents(Okabe et al. 1993). As part of our work, we have synthesized the title compound (I) and reported its cyrstal structure.
The title molecule is roughly planar. Indeed, the benzene and the thiophene rings are only slight twisted, making a dihedral angle of 5.73 (10)° (Fig. 1). The two nitro groups, O1/N1/O2 and O3/N2/O4 are coplanar with the benzene ring to which they are attached.
Intermolecular N-H···O hydrogen bonds link the molecule two by two around inversion center, building then a R22(12) graph set motif (Etter et al., 1990; Bernstein et al., 1995) if the intramolecular N-H···O hydrogen bonds are ignored (Table 1, Fig.2).