organic compounds
N′-[1-(2-Hydroxyphenyl)ethylidene]thiophene-2-carbohydrazide
aMicroscale Science Institute, Department of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, People's Republic of China
*Correspondence e-mail: weifangjjh@126.com
The title compound, C13H12N2O2S, was prepared by the reaction of 1-(2-hydroxyphenyl)ethanone and thiophene-2-carbohydrazide. The dihedral angle between the benzene and thiophene rings is 10.07 (17)°. An intramolecular O—H⋯N hydrogen bond may influence the molecular conformation. In the crystal, molecules are linked by N—H⋯O hydrogen bonds into chains along [010].
Related literature
For applications of Schiff base compounds, see: Casas et al. (2000); Habermehl et al. (2006). For related structures, see: Li & Jian (2010); Li & Meng (2010).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1997); data reduction: SAINT; 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/S1600536810050002/lh5171sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810050002/lh5171Isup2.hkl
A mixture of 1-(2-hydroxyphenyl)ethanone (0.01 mol) and thiophene-2-carbohydrazide (0.01 mol) was stirred in refluxing ethanol (20 mL) for 2 h to afford the title compound (0.092 mol, yield 92%). Single crystals suitable for X-ray measurements were obtained by recrystallization of the title compound from ethanol at room temperature.
H atoms bonded to C atoms were fixed geometrically and allowed to ride on their attached atoms, with C—H = 0.93-0.96 Å, and Uiso(H) = 1.2–1.5Ueq(C). H atoms boned to N and O atoms were refined indpendently with isotropic displacement parameters.
Schiff-base have received considerable attention as they can be utilized as effective ligands in coordination chemistry. (Casas et al., 2000). They are important intermediates which have been reported to be chiral coordination compounds with many interesting properties (Habermehl et al., 2006). As part of our search for new schiff-base compounds we synthesized the title compound (I), and its
is determined herein.The molecular structure of the title compound is shown in Fig. 1. In the molecule, the dihedral angle between the benzene ring and the thiophene ring is 10.07 (17)°. In the
molecules are linked by the N—H···O hydrogen bonds to form one-dimensional chains along [010]. Bond lengths and angles agree with those common to related structures (Li & Jian, 2010a,b).For applications of Schiff base compounds, see: Casas et al. (2000); Habermehl et al. (2006). For related structures, see: Li & Jian (2010); Li & Meng (2010).
Data collection: SMART (Bruker, 1997); cell
SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); 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).Fig. 1. The molecular structure of the title compound showing 30% probability displacement ellipsoids and the atom-numbering scheme. |
C13H12N2O2S | F(000) = 1088 |
Mr = 260.31 | Dx = 1.386 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 2839 reflections |
a = 13.454 (3) Å | θ = 3.0–27.5° |
b = 7.6303 (15) Å | µ = 0.25 mm−1 |
c = 24.305 (5) Å | T = 293 K |
V = 2495.1 (9) Å3 | Block, colorless |
Z = 8 | 0.25 × 0.20 × 0.19 mm |
Bruker SMART CCD diffractometer | 1047 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.156 |
Graphite monochromator | θmax = 25.0°, θmin = 3.0° |
φ and ω scans | h = −16→14 |
16044 measured reflections | k = −9→9 |
2189 independent reflections | l = −28→28 |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.126 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.89 | w = 1/[σ2(Fo2) + (0.0573P)2] where P = (Fo2 + 2Fc2)/3 |
2189 reflections | (Δ/σ)max < 0.001 |
172 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.29 e Å−3 |
C13H12N2O2S | V = 2495.1 (9) Å3 |
Mr = 260.31 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 13.454 (3) Å | µ = 0.25 mm−1 |
b = 7.6303 (15) Å | T = 293 K |
c = 24.305 (5) Å | 0.25 × 0.20 × 0.19 mm |
Bruker SMART CCD diffractometer | 1047 reflections with I > 2σ(I) |
16044 measured reflections | Rint = 0.156 |
2189 independent reflections |
R[F2 > 2σ(F2)] = 0.050 | 0 restraints |
wR(F2) = 0.126 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.89 | Δρmax = 0.23 e Å−3 |
2189 reflections | Δρmin = −0.29 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 | 0.44225 (8) | 0.02138 (15) | 0.75337 (5) | 0.0783 (4) | |
O1 | 0.37088 (16) | 0.2689 (3) | 0.84114 (10) | 0.0546 (7) | |
O2 | 0.31584 (19) | 0.3541 (4) | 0.98652 (13) | 0.0591 (8) | |
N1 | 0.2282 (2) | 0.1203 (4) | 0.85835 (12) | 0.0498 (8) | |
N2 | 0.2212 (2) | 0.2088 (4) | 0.90867 (12) | 0.0491 (8) | |
C1 | 0.3999 (3) | −0.1057 (5) | 0.70050 (16) | 0.0698 (12) | |
H1 | 0.4408 | −0.1542 | 0.6737 | 0.084* | |
C2 | 0.3020 (3) | −0.1273 (4) | 0.70204 (15) | 0.0562 (10) | |
H2A | 0.2668 | −0.1921 | 0.6761 | 0.067* | |
C3 | 0.2570 (3) | −0.0416 (4) | 0.74723 (16) | 0.0502 (9) | |
H3A | 0.1891 | −0.0430 | 0.7543 | 0.060* | |
C4 | 0.3251 (2) | 0.0437 (4) | 0.77919 (15) | 0.0457 (9) | |
C5 | 0.3114 (3) | 0.1538 (5) | 0.82858 (14) | 0.0462 (9) | |
C6 | 0.1375 (2) | 0.2103 (4) | 0.93416 (15) | 0.0453 (9) | |
C7 | 0.0439 (2) | 0.1341 (5) | 0.91119 (16) | 0.0632 (11) | |
H7A | 0.0469 | 0.1355 | 0.8717 | 0.095* | |
H7B | −0.0119 | 0.2024 | 0.9233 | 0.095* | |
H7C | 0.0366 | 0.0156 | 0.9238 | 0.095* | |
C8 | 0.1386 (2) | 0.2934 (4) | 0.98860 (14) | 0.0421 (9) | |
C9 | 0.0523 (3) | 0.3054 (4) | 1.02020 (16) | 0.0541 (10) | |
H9A | −0.0066 | 0.2609 | 1.0059 | 0.065* | |
C10 | 0.0510 (3) | 0.3801 (5) | 1.07136 (16) | 0.0626 (11) | |
H10A | −0.0080 | 0.3859 | 1.0912 | 0.075* | |
C11 | 0.1374 (3) | 0.4465 (5) | 1.09333 (16) | 0.0603 (11) | |
H11A | 0.1368 | 0.4981 | 1.1280 | 0.072* | |
C12 | 0.2244 (3) | 0.4366 (5) | 1.06408 (16) | 0.0571 (10) | |
H12A | 0.2827 | 0.4812 | 1.0791 | 0.069* | |
C13 | 0.2261 (3) | 0.3603 (4) | 1.01196 (15) | 0.0456 (9) | |
H1N | 0.186 (3) | 0.023 (5) | 0.8545 (16) | 0.082 (13)* | |
H2O | 0.305 (3) | 0.315 (6) | 0.9561 (19) | 0.094 (19)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0552 (6) | 0.0905 (8) | 0.0893 (9) | −0.0020 (6) | 0.0197 (6) | −0.0246 (7) |
O1 | 0.0464 (15) | 0.0593 (15) | 0.0581 (17) | −0.0070 (12) | −0.0021 (12) | −0.0067 (13) |
O2 | 0.0448 (16) | 0.0713 (19) | 0.061 (2) | −0.0090 (13) | 0.0029 (15) | −0.0080 (16) |
N1 | 0.0521 (19) | 0.0515 (19) | 0.046 (2) | −0.0051 (16) | 0.0061 (15) | −0.0075 (17) |
N2 | 0.0530 (19) | 0.0485 (18) | 0.046 (2) | −0.0035 (14) | 0.0054 (15) | −0.0057 (16) |
C1 | 0.085 (3) | 0.063 (3) | 0.061 (3) | 0.003 (2) | 0.019 (2) | −0.013 (2) |
C2 | 0.074 (3) | 0.044 (2) | 0.051 (3) | 0.006 (2) | 0.004 (2) | −0.0002 (19) |
C3 | 0.053 (2) | 0.045 (2) | 0.053 (2) | 0.0025 (17) | 0.008 (2) | 0.004 (2) |
C4 | 0.045 (2) | 0.046 (2) | 0.046 (2) | 0.0064 (16) | 0.0065 (17) | 0.0029 (18) |
C5 | 0.044 (2) | 0.049 (2) | 0.046 (2) | 0.0054 (18) | −0.0015 (18) | 0.0014 (19) |
C6 | 0.042 (2) | 0.045 (2) | 0.050 (2) | −0.0035 (16) | −0.0012 (18) | 0.0007 (18) |
C7 | 0.054 (2) | 0.068 (3) | 0.068 (3) | −0.001 (2) | −0.003 (2) | −0.019 (2) |
C8 | 0.043 (2) | 0.044 (2) | 0.038 (2) | −0.0019 (15) | 0.0009 (17) | 0.0021 (17) |
C9 | 0.048 (2) | 0.059 (3) | 0.055 (3) | −0.0081 (18) | 0.007 (2) | 0.000 (2) |
C10 | 0.062 (3) | 0.075 (3) | 0.051 (3) | 0.000 (2) | 0.015 (2) | 0.005 (2) |
C11 | 0.076 (3) | 0.065 (3) | 0.040 (2) | 0.003 (2) | 0.008 (2) | 0.000 (2) |
C12 | 0.062 (3) | 0.056 (2) | 0.053 (3) | −0.0039 (19) | −0.004 (2) | 0.000 (2) |
C13 | 0.047 (2) | 0.041 (2) | 0.049 (2) | 0.0011 (17) | 0.0033 (18) | 0.0015 (19) |
S1—C4 | 1.705 (3) | C6—C8 | 1.467 (5) |
S1—C1 | 1.708 (4) | C6—C7 | 1.495 (4) |
O1—C5 | 1.227 (4) | C7—H7A | 0.9600 |
O2—C13 | 1.357 (4) | C7—H7B | 0.9600 |
O2—H2O | 0.81 (4) | C7—H7C | 0.9600 |
N1—C5 | 1.356 (4) | C8—C9 | 1.395 (4) |
N1—N2 | 1.400 (4) | C8—C13 | 1.402 (4) |
N1—H1N | 0.94 (4) | C9—C10 | 1.368 (5) |
N2—C6 | 1.285 (4) | C9—H9A | 0.9300 |
C1—C2 | 1.327 (5) | C10—C11 | 1.377 (5) |
C1—H1 | 0.9300 | C10—H10A | 0.9300 |
C2—C3 | 1.415 (5) | C11—C12 | 1.371 (5) |
C2—H2A | 0.9300 | C11—H11A | 0.9300 |
C3—C4 | 1.366 (5) | C12—C13 | 1.395 (5) |
C3—H3A | 0.9300 | C12—H12A | 0.9300 |
C4—C5 | 1.477 (5) | ||
C4—S1—C1 | 91.4 (2) | C6—C7—H7A | 109.5 |
C13—O2—H2O | 105 (3) | C6—C7—H7B | 109.5 |
C5—N1—N2 | 115.5 (3) | H7A—C7—H7B | 109.5 |
C5—N1—H1N | 126 (2) | C6—C7—H7C | 109.5 |
N2—N1—H1N | 115 (2) | H7A—C7—H7C | 109.5 |
C6—N2—N1 | 119.0 (3) | H7B—C7—H7C | 109.5 |
C2—C1—S1 | 112.4 (3) | C9—C8—C13 | 116.8 (3) |
C2—C1—H1 | 123.8 | C9—C8—C6 | 121.1 (3) |
S1—C1—H1 | 123.8 | C13—C8—C6 | 122.1 (3) |
C1—C2—C3 | 112.9 (4) | C10—C9—C8 | 122.6 (4) |
C1—C2—H2A | 123.6 | C10—C9—H9A | 118.7 |
C3—C2—H2A | 123.6 | C8—C9—H9A | 118.7 |
C4—C3—C2 | 112.0 (3) | C9—C10—C11 | 119.7 (4) |
C4—C3—H3A | 124.0 | C9—C10—H10A | 120.2 |
C2—C3—H3A | 124.0 | C11—C10—H10A | 120.2 |
C3—C4—C5 | 130.5 (3) | C12—C11—C10 | 120.0 (4) |
C3—C4—S1 | 111.3 (3) | C12—C11—H11A | 120.0 |
C5—C4—S1 | 118.1 (3) | C10—C11—H11A | 120.0 |
O1—C5—N1 | 122.7 (3) | C11—C12—C13 | 120.5 (4) |
O1—C5—C4 | 121.9 (3) | C11—C12—H12A | 119.8 |
N1—C5—C4 | 115.4 (3) | C13—C12—H12A | 119.8 |
N2—C6—C8 | 115.4 (3) | O2—C13—C12 | 116.3 (3) |
N2—C6—C7 | 123.7 (3) | O2—C13—C8 | 123.3 (3) |
C8—C6—C7 | 120.9 (3) | C12—C13—C8 | 120.4 (3) |
C5—N1—N2—C6 | 167.0 (3) | N2—C6—C8—C9 | 179.2 (3) |
C4—S1—C1—C2 | 0.9 (3) | C7—C6—C8—C9 | −0.7 (5) |
S1—C1—C2—C3 | −0.5 (4) | N2—C6—C8—C13 | −2.3 (5) |
C1—C2—C3—C4 | −0.3 (5) | C7—C6—C8—C13 | 177.7 (3) |
C2—C3—C4—C5 | 177.6 (3) | C13—C8—C9—C10 | 0.7 (5) |
C2—C3—C4—S1 | 1.0 (4) | C6—C8—C9—C10 | 179.2 (3) |
C1—S1—C4—C3 | −1.1 (3) | C8—C9—C10—C11 | −0.1 (6) |
C1—S1—C4—C5 | −178.1 (3) | C9—C10—C11—C12 | −0.4 (6) |
N2—N1—C5—O1 | −8.5 (5) | C10—C11—C12—C13 | 0.3 (6) |
N2—N1—C5—C4 | 172.4 (3) | C11—C12—C13—O2 | −179.1 (3) |
C3—C4—C5—O1 | −153.3 (4) | C11—C12—C13—C8 | 0.4 (5) |
S1—C4—C5—O1 | 23.1 (4) | C9—C8—C13—O2 | 178.5 (3) |
C3—C4—C5—N1 | 25.8 (5) | C6—C8—C13—O2 | 0.1 (5) |
S1—C4—C5—N1 | −157.8 (3) | C9—C8—C13—C12 | −0.8 (5) |
N1—N2—C6—C8 | 175.2 (3) | C6—C8—C13—C12 | −179.3 (3) |
N1—N2—C6—C7 | −4.8 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.94 (4) | 2.11 (4) | 3.023 (4) | 164 (3) |
O2—H2O···N2 | 0.81 (4) | 1.80 (4) | 2.536 (4) | 150 (4) |
Symmetry code: (i) −x+1/2, y−1/2, z. |
Experimental details
Crystal data | |
Chemical formula | C13H12N2O2S |
Mr | 260.31 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 293 |
a, b, c (Å) | 13.454 (3), 7.6303 (15), 24.305 (5) |
V (Å3) | 2495.1 (9) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.25 |
Crystal size (mm) | 0.25 × 0.20 × 0.19 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16044, 2189, 1047 |
Rint | 0.156 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.126, 0.89 |
No. of reflections | 2189 |
No. of parameters | 172 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.29 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.94 (4) | 2.11 (4) | 3.023 (4) | 164 (3) |
O2—H2O···N2 | 0.81 (4) | 1.80 (4) | 2.536 (4) | 150 (4) |
Symmetry code: (i) −x+1/2, y−1/2, z. |
References
Bruker (1997). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Casas, J. S., Garcia-T, M. S. & Sordo, J. (2000). Coord. Chem. Rev. 209, 197–261. Web of Science CrossRef CAS Google Scholar
Habermehl, N. C., Angus, P. M. & Kilah, N. L. (2006). Inorg. Chem. 45, 1445–1462. Web of Science CSD CrossRef PubMed CAS Google Scholar
Li, Y.-F. & Jian, F.-F. (2010). Acta Cryst. E66, o1399. Web of Science CSD CrossRef IUCr Journals Google Scholar
Li, Y.-F. & Meng, F.-Y. (2010). Acta Cryst. E66, o2685. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS 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.
Schiff-base have received considerable attention as they can be utilized as effective ligands in coordination chemistry. (Casas et al., 2000). They are important intermediates which have been reported to be chiral coordination compounds with many interesting properties (Habermehl et al., 2006). As part of our search for new schiff-base compounds we synthesized the title compound (I), and its crystal structure is determined herein.
The molecular structure of the title compound is shown in Fig. 1. In the molecule, the dihedral angle between the benzene ring and the thiophene ring is 10.07 (17)°. In the crystal structure, molecules are linked by the N—H···O hydrogen bonds to form one-dimensional chains along [010]. Bond lengths and angles agree with those common to related structures (Li & Jian, 2010a,b).