organic compounds
N′-[1-(2-Pyridyl)ethylidene]nicotinohydrazide
aDepartment of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, People's Republic of China
*Correspondence e-mail: taixishi@lzu.edu.cn
In the the title compound, C13H12N4O, the dihedral angle between the aromatic ring planes is 21.7 (3)°. In the intermolecular N—H⋯O hydrogen bonds lead to C(4) chains.
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: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2000); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536807056024/hb2634sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807056024/hb2634Isup2.hkl
10 mmol of 2-acetylpyridine (10 mmol) was added to a solution of nicotinic acid hydrazine (10 mmol) in 10 ml of ethanol. The mixture was continuously stirred for 3 h at refluxing temperature, evaporating some ethanol, then, upon cooling, the solid product was collected by filtration and dried in vacuo (yield 68%). Colourless blocks of (I) were obtained by evaporation from a methanol solution after two weeks.
The H atoms were placed geometrically (C—H = 0.93–0.96 Å, N—H = 0.86 Å) and refined as riding with Uiso(H) = 1.2Ueq(carrier) or 1.5Ueq(methyl C).
As part of our ongoing studies of the coordination chemistry of aroylhydrazones ligands (Tai et al., 2003), we now report the synthesis and structure of the title compound, (I), (Fig. 1).
In the molecule of (I), both C8—N2 [1.284 (2) Å] and C1—O1 [1.220 (2) Å] are close to double-bond separations, indicating that the Lewis structure shown in the scheme is only an approximation to the electron distribution in the molecule. Otherwise, the geometrical parameters for (I) are normal. The dihedral angle between the pyridine ring mean planes is 21.7 (3)°, indicating that the molecule is significantly twisted, perhaps for steric reasons.
In the crystal, an N—H···O hydrogen bond (Table 1) leads to C(4) chains.
For related literature, see: Tai et al. (2003).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2000); software used to prepare material for publication: SHELXTL (Bruker, 2000).Fig. 1. The molecular structure of (I) showing 30% displacement ellipsoids (arbitrary spheres for the H atoms). |
C13H12N4O | Dx = 1.338 Mg m−3 |
Mr = 240.27 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, Pbcn | Cell parameters from 2977 reflections |
a = 18.264 (3) Å | θ = 2.2–27.1° |
b = 7.9300 (9) Å | µ = 0.09 mm−1 |
c = 16.471 (2) Å | T = 298 K |
V = 2385.5 (5) Å3 | Block, colourless |
Z = 8 | 0.46 × 0.43 × 0.40 mm |
F(000) = 1008 |
Bruker SMART CCD diffractometer | 2107 independent reflections |
Radiation source: fine-focus sealed tube | 1568 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.041 |
ω scans | θmax = 25.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −17→21 |
Tmin = 0.960, Tmax = 0.965 | k = −9→8 |
9146 measured reflections | l = −19→16 |
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)] = 0.038 | H-atom parameters constrained |
wR(F2) = 0.106 | w = 1/[σ2(Fo2) + (0.0375P)2 + 1.131P] where P = (Fo2 + 2Fc2)/3 |
S = 1.06 | (Δ/σ)max = 0.001 |
2107 reflections | Δρmax = 0.21 e Å−3 |
164 parameters | Δρmin = −0.17 e Å−3 |
0 restraints | Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0194 (13) |
C13H12N4O | V = 2385.5 (5) Å3 |
Mr = 240.27 | Z = 8 |
Orthorhombic, Pbcn | Mo Kα radiation |
a = 18.264 (3) Å | µ = 0.09 mm−1 |
b = 7.9300 (9) Å | T = 298 K |
c = 16.471 (2) Å | 0.46 × 0.43 × 0.40 mm |
Bruker SMART CCD diffractometer | 2107 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 1568 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.965 | Rint = 0.041 |
9146 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 0 restraints |
wR(F2) = 0.106 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.21 e Å−3 |
2107 reflections | Δρmin = −0.17 e Å−3 |
164 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 | ||
N1 | 0.74333 (8) | 0.92565 (18) | 0.94870 (8) | 0.0347 (4) | |
H1 | 0.7208 | 0.8309 | 0.9442 | 0.042* | |
N2 | 0.71633 (8) | 1.05276 (17) | 0.99711 (9) | 0.0342 (4) | |
N3 | 0.81694 (9) | 0.5927 (2) | 0.76098 (10) | 0.0499 (5) | |
N4 | 0.55759 (8) | 1.1916 (2) | 1.09086 (10) | 0.0472 (5) | |
O1 | 0.83904 (7) | 1.08958 (17) | 0.91028 (9) | 0.0518 (4) | |
C1 | 0.80666 (10) | 0.9551 (2) | 0.90842 (11) | 0.0346 (4) | |
C2 | 0.83536 (9) | 0.8086 (2) | 0.86108 (10) | 0.0329 (4) | |
C3 | 0.79344 (10) | 0.7247 (2) | 0.80384 (11) | 0.0399 (5) | |
H3 | 0.7460 | 0.7627 | 0.7947 | 0.048* | |
C4 | 0.88433 (12) | 0.5398 (3) | 0.77688 (13) | 0.0540 (6) | |
H4 | 0.9013 | 0.4453 | 0.7493 | 0.065* | |
C5 | 0.93084 (11) | 0.6157 (3) | 0.83154 (13) | 0.0553 (6) | |
H5 | 0.9778 | 0.5740 | 0.8400 | 0.066* | |
C6 | 0.90614 (10) | 0.7548 (3) | 0.87343 (12) | 0.0451 (5) | |
H6 | 0.9367 | 0.8113 | 0.9094 | 0.054* | |
C7 | 0.60952 (12) | 0.8730 (3) | 1.03313 (15) | 0.0600 (6) | |
H7A | 0.5709 | 0.8875 | 0.9942 | 0.090* | |
H7B | 0.5888 | 0.8539 | 1.0859 | 0.090* | |
H7C | 0.6391 | 0.7779 | 1.0180 | 0.090* | |
C8 | 0.65592 (10) | 1.0280 (2) | 1.03520 (10) | 0.0352 (4) | |
C9 | 0.63030 (9) | 1.1754 (2) | 1.08347 (10) | 0.0339 (4) | |
C10 | 0.67883 (10) | 1.2881 (2) | 1.11839 (11) | 0.0390 (5) | |
H10 | 0.7291 | 1.2719 | 1.1133 | 0.047* | |
C11 | 0.65202 (12) | 1.4242 (3) | 1.16058 (13) | 0.0503 (5) | |
H11 | 0.6837 | 1.5011 | 1.1847 | 0.060* | |
C12 | 0.57744 (12) | 1.4446 (3) | 1.16657 (14) | 0.0561 (6) | |
H12 | 0.5576 | 1.5366 | 1.1938 | 0.067* | |
C13 | 0.53299 (12) | 1.3260 (3) | 1.13141 (14) | 0.0560 (6) | |
H13 | 0.4826 | 1.3399 | 1.1361 | 0.067* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0408 (9) | 0.0252 (8) | 0.0381 (8) | −0.0008 (7) | 0.0054 (7) | −0.0048 (7) |
N2 | 0.0403 (9) | 0.0279 (8) | 0.0344 (8) | 0.0058 (7) | 0.0007 (6) | −0.0029 (7) |
N3 | 0.0511 (11) | 0.0497 (10) | 0.0490 (10) | 0.0043 (9) | −0.0005 (8) | −0.0147 (9) |
N4 | 0.0367 (9) | 0.0506 (11) | 0.0542 (10) | 0.0046 (8) | 0.0029 (7) | −0.0111 (9) |
O1 | 0.0480 (8) | 0.0377 (8) | 0.0698 (10) | −0.0094 (7) | 0.0109 (7) | −0.0114 (7) |
C1 | 0.0365 (10) | 0.0304 (10) | 0.0370 (10) | 0.0005 (8) | −0.0021 (8) | −0.0010 (8) |
C2 | 0.0357 (10) | 0.0316 (10) | 0.0313 (9) | −0.0005 (8) | 0.0058 (7) | 0.0018 (8) |
C3 | 0.0381 (10) | 0.0393 (11) | 0.0422 (11) | 0.0032 (9) | 0.0008 (8) | −0.0026 (9) |
C4 | 0.0550 (13) | 0.0546 (14) | 0.0523 (13) | 0.0154 (11) | 0.0061 (10) | −0.0168 (11) |
C5 | 0.0416 (12) | 0.0690 (15) | 0.0552 (13) | 0.0182 (11) | −0.0003 (10) | −0.0128 (12) |
C6 | 0.0389 (11) | 0.0552 (13) | 0.0413 (11) | 0.0016 (9) | −0.0003 (8) | −0.0074 (10) |
C7 | 0.0580 (14) | 0.0460 (13) | 0.0760 (16) | −0.0101 (11) | 0.0213 (12) | −0.0188 (12) |
C8 | 0.0368 (10) | 0.0335 (10) | 0.0352 (10) | 0.0011 (8) | 0.0012 (8) | −0.0009 (8) |
C9 | 0.0376 (10) | 0.0338 (10) | 0.0304 (9) | 0.0013 (8) | 0.0019 (7) | 0.0003 (8) |
C10 | 0.0389 (10) | 0.0403 (11) | 0.0378 (10) | −0.0005 (9) | 0.0025 (8) | −0.0033 (9) |
C11 | 0.0559 (13) | 0.0454 (12) | 0.0495 (12) | −0.0060 (10) | 0.0033 (10) | −0.0136 (10) |
C12 | 0.0605 (14) | 0.0483 (13) | 0.0594 (13) | 0.0099 (11) | 0.0116 (11) | −0.0154 (11) |
C13 | 0.0425 (12) | 0.0581 (14) | 0.0672 (15) | 0.0111 (11) | 0.0059 (11) | −0.0127 (12) |
N1—C1 | 1.354 (2) | C5—H5 | 0.9300 |
N1—N2 | 1.3765 (19) | C6—H6 | 0.9300 |
N1—H1 | 0.8600 | C7—C8 | 1.494 (3) |
N2—C8 | 1.284 (2) | C7—H7A | 0.9600 |
N3—C4 | 1.326 (3) | C7—H7B | 0.9600 |
N3—C3 | 1.333 (2) | C7—H7C | 0.9600 |
N4—C13 | 1.336 (3) | C8—C9 | 1.489 (2) |
N4—C9 | 1.340 (2) | C9—C10 | 1.384 (3) |
O1—C1 | 1.220 (2) | C10—C11 | 1.374 (3) |
C1—C2 | 1.494 (2) | C10—H10 | 0.9300 |
C2—C6 | 1.377 (3) | C11—C12 | 1.375 (3) |
C2—C3 | 1.385 (2) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | C12—C13 | 1.371 (3) |
C4—C5 | 1.376 (3) | C12—H12 | 0.9300 |
C4—H4 | 0.9300 | C13—H13 | 0.9300 |
C5—C6 | 1.377 (3) | ||
C1—N1—N2 | 117.63 (14) | C8—C7—H7A | 109.5 |
C1—N1—H1 | 121.2 | C8—C7—H7B | 109.5 |
N2—N1—H1 | 121.2 | H7A—C7—H7B | 109.5 |
C8—N2—N1 | 118.61 (15) | C8—C7—H7C | 109.5 |
C4—N3—C3 | 116.25 (17) | H7A—C7—H7C | 109.5 |
C13—N4—C9 | 117.09 (17) | H7B—C7—H7C | 109.5 |
O1—C1—N1 | 123.55 (17) | N2—C8—C9 | 114.28 (16) |
O1—C1—C2 | 121.51 (16) | N2—C8—C7 | 127.01 (17) |
N1—C1—C2 | 114.94 (15) | C9—C8—C7 | 118.68 (16) |
C6—C2—C3 | 118.06 (17) | N4—C9—C10 | 122.35 (17) |
C6—C2—C1 | 119.59 (16) | N4—C9—C8 | 115.81 (16) |
C3—C2—C1 | 122.34 (16) | C10—C9—C8 | 121.85 (16) |
N3—C3—C2 | 124.04 (17) | C11—C10—C9 | 119.30 (18) |
N3—C3—H3 | 118.0 | C11—C10—H10 | 120.3 |
C2—C3—H3 | 118.0 | C9—C10—H10 | 120.3 |
N3—C4—C5 | 124.33 (19) | C10—C11—C12 | 118.80 (19) |
N3—C4—H4 | 117.8 | C10—C11—H11 | 120.6 |
C5—C4—H4 | 117.8 | C12—C11—H11 | 120.6 |
C4—C5—C6 | 118.39 (19) | C13—C12—C11 | 118.39 (19) |
C4—C5—H5 | 120.8 | C13—C12—H12 | 120.8 |
C6—C5—H5 | 120.8 | C11—C12—H12 | 120.8 |
C2—C6—C5 | 118.84 (19) | N4—C13—C12 | 124.0 (2) |
C2—C6—H6 | 120.6 | N4—C13—H13 | 118.0 |
C5—C6—H6 | 120.6 | C12—C13—H13 | 118.0 |
C1—N1—N2—C8 | 179.30 (16) | N1—N2—C8—C9 | −177.98 (14) |
N2—N1—C1—O1 | −3.1 (3) | N1—N2—C8—C7 | −0.3 (3) |
N2—N1—C1—C2 | 176.40 (14) | C13—N4—C9—C10 | 2.3 (3) |
O1—C1—C2—C6 | 53.1 (3) | C13—N4—C9—C8 | −177.68 (17) |
N1—C1—C2—C6 | −126.43 (18) | N2—C8—C9—N4 | 148.85 (17) |
O1—C1—C2—C3 | −126.2 (2) | C7—C8—C9—N4 | −29.1 (3) |
N1—C1—C2—C3 | 54.3 (2) | N2—C8—C9—C10 | −31.1 (2) |
C4—N3—C3—C2 | 1.4 (3) | C7—C8—C9—C10 | 150.92 (19) |
C6—C2—C3—N3 | 1.3 (3) | N4—C9—C10—C11 | −1.6 (3) |
C1—C2—C3—N3 | −179.39 (17) | C8—C9—C10—C11 | 178.37 (18) |
C3—N3—C4—C5 | −2.5 (3) | C9—C10—C11—C12 | −0.2 (3) |
N3—C4—C5—C6 | 0.7 (4) | C10—C11—C12—C13 | 1.3 (3) |
C3—C2—C6—C5 | −3.1 (3) | C9—N4—C13—C12 | −1.2 (3) |
C1—C2—C6—C5 | 177.58 (18) | C11—C12—C13—N4 | −0.6 (4) |
C4—C5—C6—C2 | 2.2 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.27 | 3.125 (2) | 171 |
Symmetry code: (i) −x+3/2, y−1/2, z. |
Experimental details
Crystal data | |
Chemical formula | C13H12N4O |
Mr | 240.27 |
Crystal system, space group | Orthorhombic, Pbcn |
Temperature (K) | 298 |
a, b, c (Å) | 18.264 (3), 7.9300 (9), 16.471 (2) |
V (Å3) | 2385.5 (5) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.46 × 0.43 × 0.40 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.960, 0.965 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9146, 2107, 1568 |
Rint | 0.041 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.106, 1.06 |
No. of reflections | 2107 |
No. of parameters | 164 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.21, −0.17 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 2000).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.27 | 3.125 (2) | 171 |
Symmetry code: (i) −x+3/2, y−1/2, z. |
Acknowledgements
The authors thank the National Natural Science Foundation of China (20671073), NingXia Natural Gas Transfer Key Laboratory (2004007), the Science and Technology Foundation of Weifang and Weifang University for a research grant.
References
Bruker (2000). SMART, SAINT, SADABS and SHELXTL. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Tai, X.-S., Yin, X.-H., Tan, M.-Y. & Li, Y.-Z. (2003). Acta Cryst. E59, o681–o682. 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.
As part of our ongoing studies of the coordination chemistry of aroylhydrazones ligands (Tai et al., 2003), we now report the synthesis and structure of the title compound, (I), (Fig. 1).
In the molecule of (I), both C8—N2 [1.284 (2) Å] and C1—O1 [1.220 (2) Å] are close to double-bond separations, indicating that the Lewis structure shown in the scheme is only an approximation to the electron distribution in the molecule. Otherwise, the geometrical parameters for (I) are normal. The dihedral angle between the pyridine ring mean planes is 21.7 (3)°, indicating that the molecule is significantly twisted, perhaps for steric reasons.
In the crystal, an N—H···O hydrogen bond (Table 1) leads to C(4) chains.