organic compounds
N′-[(5-Methylfuran-2-yl)methylene]isonicotinohydrazide
aMicroscale Science Institute, Weifang University, Weifang 261061, People's Republic of China
*Correspondence e-mail: ffjian2008@163.com
The title compound, C12H11N3O2, was prepared by the reaction of isonicotinohydrazide and 5-methylfuran-2-carbaldehyde. The pyridine ring makes a dihedral angle of 46.90 (9)° with the mean plane of the furan ring. The crystal packing is stabilized by a bifurcated intermolecular N—H⋯(N,O) interaction.
Related literature
For general background, see: Cimerman et al. (1997). For bond-length data, see: Chiu et al. (1998).
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
10.1107/S1600536808037276/at2662sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808037276/at2662Isup2.hkl
A mixture of the isonicotinohydrazide (0.1 mol), and 5-methylfuran-2-carbaldehyde (0.1 mol) was stirred in refluxing ethanol (20 mL) for 4 h to afford the title compound (0.082 mol, yield 82%). Single crystals suitable for X-ray measurements were obtained by recrystallization from ethanol at room temperature.
All H atoms were fixed geometrically and allowed to ride on their attached atoms, with C—H distances in the range 0.93-0.97 Å and N—H = 0.86 Å, and with Uiso=1.2–1.5Ueq(N,C).
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 (I) showing 30% probability displacement ellipsoids and the atom-numbering scheme. |
C12H11N3O2 | Dx = 1.290 Mg m−3 |
Mr = 229.24 | Mo Kα radiation, λ = 0.71073 Å |
Tetragonal, I41/a | Cell parameters from 4665 reflections |
Hall symbol: -I 4ad | θ = 2.9–27.2° |
a = 17.313 (3) Å | µ = 0.09 mm−1 |
c = 15.749 (5) Å | T = 273 K |
V = 4720.5 (18) Å3 | Block, yellow |
Z = 16 | 0.25 × 0.20 × 0.19 mm |
F(000) = 1920 |
Bruker SMART CCD area-detector diffractometer | 2151 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.028 |
Graphite monochromator | θmax = 28.3°, θmin = 1.8° |
ϕ and ω scans | h = −16→23 |
14901 measured reflections | k = −22→22 |
2911 independent reflections | l = −20→20 |
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)] = 0.041 | H-atom parameters constrained |
wR(F2) = 0.117 | w = 1/[σ2(Fo2) + (0.0456P)2 + 2.257P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max < 0.001 |
2911 reflections | Δρmax = 0.17 e Å−3 |
155 parameters | Δρmin = −0.14 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: 0.0031 (3) |
C12H11N3O2 | Z = 16 |
Mr = 229.24 | Mo Kα radiation |
Tetragonal, I41/a | µ = 0.09 mm−1 |
a = 17.313 (3) Å | T = 273 K |
c = 15.749 (5) Å | 0.25 × 0.20 × 0.19 mm |
V = 4720.5 (18) Å3 |
Bruker SMART CCD area-detector diffractometer | 2151 reflections with I > 2σ(I) |
14901 measured reflections | Rint = 0.028 |
2911 independent reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.117 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.17 e Å−3 |
2911 reflections | Δρmin = −0.14 e Å−3 |
155 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 | ||
O2 | 0.58347 (5) | 0.51303 (5) | 0.10958 (6) | 0.0482 (3) | |
N3 | 0.72302 (6) | 0.49350 (7) | 0.03623 (7) | 0.0427 (3) | |
C12 | 0.67464 (8) | 0.53721 (7) | −0.00223 (9) | 0.0423 (3) | |
H12A | 0.6866 | 0.5578 | −0.0552 | 0.051* | |
N2 | 0.79076 (6) | 0.47620 (7) | −0.00603 (7) | 0.0443 (3) | |
H2A | 0.7980 | 0.4901 | −0.0578 | 0.053* | |
C8 | 0.60143 (8) | 0.55421 (7) | 0.03726 (8) | 0.0417 (3) | |
O1 | 0.83833 (7) | 0.42110 (8) | 0.11302 (7) | 0.0750 (4) | |
C4 | 0.91448 (8) | 0.41092 (8) | −0.01179 (8) | 0.0442 (3) | |
C11 | 0.84487 (8) | 0.43670 (9) | 0.03721 (8) | 0.0460 (3) | |
C9 | 0.51105 (8) | 0.53616 (9) | 0.13450 (10) | 0.0513 (4) | |
C7 | 0.54259 (8) | 0.60254 (8) | 0.01805 (10) | 0.0505 (4) | |
H7A | 0.5402 | 0.6366 | −0.0276 | 0.061* | |
C3 | 0.91374 (8) | 0.39635 (10) | −0.09860 (9) | 0.0531 (4) | |
H3B | 0.8696 | 0.4056 | −0.1307 | 0.064* | |
N1 | 1.04629 (8) | 0.35518 (10) | −0.09513 (9) | 0.0736 (5) | |
C5 | 0.98256 (9) | 0.39741 (11) | 0.03194 (10) | 0.0640 (5) | |
H5A | 0.9853 | 0.4061 | 0.0901 | 0.077* | |
C2 | 0.98006 (9) | 0.36780 (11) | −0.13609 (10) | 0.0650 (5) | |
H2B | 0.9784 | 0.3566 | −0.1938 | 0.078* | |
C6 | 0.48512 (9) | 0.59116 (9) | 0.08124 (11) | 0.0561 (4) | |
H6A | 0.4382 | 0.6170 | 0.0851 | 0.067* | |
C1 | 1.04634 (10) | 0.37078 (13) | −0.01203 (12) | 0.0758 (6) | |
H1B | 1.0920 | 0.3633 | 0.0180 | 0.091* | |
C10 | 0.47813 (11) | 0.49172 (12) | 0.20700 (12) | 0.0760 (6) | |
H10A | 0.4277 | 0.5113 | 0.2203 | 0.114* | |
H10B | 0.5112 | 0.4971 | 0.2556 | 0.114* | |
H10C | 0.4743 | 0.4382 | 0.1918 | 0.114* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O2 | 0.0471 (5) | 0.0516 (6) | 0.0459 (6) | 0.0050 (4) | 0.0087 (4) | 0.0080 (4) |
N3 | 0.0440 (6) | 0.0466 (6) | 0.0374 (6) | 0.0030 (5) | 0.0080 (5) | 0.0042 (5) |
C12 | 0.0482 (7) | 0.0410 (7) | 0.0377 (7) | −0.0013 (5) | 0.0043 (5) | 0.0035 (5) |
N2 | 0.0455 (6) | 0.0564 (7) | 0.0309 (5) | 0.0060 (5) | 0.0089 (4) | 0.0086 (5) |
C8 | 0.0469 (7) | 0.0390 (7) | 0.0393 (7) | −0.0019 (5) | 0.0027 (5) | 0.0022 (5) |
O1 | 0.0740 (8) | 0.1156 (10) | 0.0355 (6) | 0.0391 (7) | 0.0150 (5) | 0.0225 (6) |
C4 | 0.0432 (7) | 0.0547 (8) | 0.0346 (7) | 0.0036 (6) | 0.0027 (5) | 0.0012 (6) |
C11 | 0.0493 (8) | 0.0564 (8) | 0.0324 (7) | 0.0078 (6) | 0.0065 (5) | 0.0053 (6) |
C9 | 0.0462 (8) | 0.0537 (8) | 0.0540 (9) | 0.0000 (6) | 0.0107 (6) | −0.0028 (7) |
C7 | 0.0529 (8) | 0.0440 (7) | 0.0545 (9) | 0.0040 (6) | 0.0006 (6) | 0.0051 (6) |
C3 | 0.0429 (7) | 0.0785 (10) | 0.0379 (7) | 0.0050 (7) | −0.0012 (6) | −0.0047 (7) |
N1 | 0.0497 (8) | 0.1162 (13) | 0.0550 (8) | 0.0166 (8) | 0.0024 (6) | −0.0196 (8) |
C5 | 0.0577 (9) | 0.0961 (13) | 0.0381 (8) | 0.0182 (9) | −0.0062 (7) | −0.0109 (8) |
C2 | 0.0546 (9) | 0.1006 (13) | 0.0399 (8) | 0.0090 (9) | 0.0034 (7) | −0.0151 (8) |
C6 | 0.0468 (8) | 0.0544 (9) | 0.0672 (10) | 0.0085 (6) | 0.0047 (7) | −0.0014 (7) |
C1 | 0.0483 (9) | 0.1212 (16) | 0.0579 (10) | 0.0220 (10) | −0.0099 (7) | −0.0188 (10) |
C10 | 0.0718 (12) | 0.0839 (13) | 0.0722 (12) | 0.0022 (9) | 0.0292 (9) | 0.0134 (10) |
O2—C9 | 1.3735 (16) | C7—C6 | 1.421 (2) |
O2—C8 | 1.3793 (16) | C7—H7A | 0.9300 |
N3—C12 | 1.2812 (17) | C3—C2 | 1.383 (2) |
N3—N2 | 1.3813 (15) | C3—H3B | 0.9300 |
C12—C8 | 1.4421 (18) | N1—C2 | 1.334 (2) |
C12—H12A | 0.9300 | N1—C1 | 1.336 (2) |
N2—C11 | 1.3450 (17) | C5—C1 | 1.383 (2) |
N2—H2A | 0.8600 | C5—H5A | 0.9300 |
C8—C7 | 1.3526 (19) | C2—H2B | 0.9300 |
O1—C11 | 1.2293 (16) | C6—H6A | 0.9300 |
C4—C5 | 1.385 (2) | C1—H1B | 0.9300 |
C4—C3 | 1.3904 (19) | C10—H10A | 0.9600 |
C4—C11 | 1.4990 (18) | C10—H10B | 0.9600 |
C9—C6 | 1.346 (2) | C10—H10C | 0.9600 |
C9—C10 | 1.490 (2) | ||
C9—O2—C8 | 106.92 (11) | C2—C3—C4 | 118.50 (14) |
C12—N3—N2 | 117.08 (11) | C2—C3—H3B | 120.7 |
N3—C12—C8 | 119.42 (12) | C4—C3—H3B | 120.7 |
N3—C12—H12A | 120.3 | C2—N1—C1 | 116.18 (14) |
C8—C12—H12A | 120.3 | C1—C5—C4 | 119.14 (14) |
C11—N2—N3 | 117.23 (11) | C1—C5—H5A | 120.4 |
C11—N2—H2A | 121.4 | C4—C5—H5A | 120.4 |
N3—N2—H2A | 121.4 | N1—C2—C3 | 124.47 (14) |
C7—C8—O2 | 109.55 (12) | N1—C2—H2B | 117.8 |
C7—C8—C12 | 133.77 (13) | C3—C2—H2B | 117.8 |
O2—C8—C12 | 116.66 (11) | C9—C6—C7 | 107.52 (13) |
C5—C4—C3 | 117.78 (13) | C9—C6—H6A | 126.2 |
C5—C4—C11 | 118.59 (12) | C7—C6—H6A | 126.2 |
C3—C4—C11 | 123.56 (12) | N1—C1—C5 | 123.88 (15) |
O1—C11—N2 | 122.64 (12) | N1—C1—H1B | 118.1 |
O1—C11—C4 | 120.56 (13) | C5—C1—H1B | 118.1 |
N2—C11—C4 | 116.79 (11) | C9—C10—H10A | 109.5 |
C6—C9—O2 | 109.43 (13) | C9—C10—H10B | 109.5 |
C6—C9—C10 | 135.66 (15) | H10A—C10—H10B | 109.5 |
O2—C9—C10 | 114.68 (14) | C9—C10—H10C | 109.5 |
C8—C7—C6 | 106.55 (13) | H10A—C10—H10C | 109.5 |
C8—C7—H7A | 126.7 | H10B—C10—H10C | 109.5 |
C6—C7—H7A | 126.7 |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O1i | 0.86 | 2.18 | 2.9083 (19) | 143 |
N2—H2A···N3i | 0.86 | 2.58 | 3.3255 (19) | 146 |
Symmetry code: (i) −y+5/4, x−1/4, z−1/4. |
Experimental details
Crystal data | |
Chemical formula | C12H11N3O2 |
Mr | 229.24 |
Crystal system, space group | Tetragonal, I41/a |
Temperature (K) | 273 |
a, c (Å) | 17.313 (3), 15.749 (5) |
V (Å3) | 4720.5 (18) |
Z | 16 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.25 × 0.20 × 0.19 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14901, 2911, 2151 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.667 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.117, 1.04 |
No. of reflections | 2911 |
No. of parameters | 155 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.17, −0.14 |
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 |
N2—H2A···O1i | 0.86 | 2.18 | 2.9083 (19) | 143 |
N2—H2A···N3i | 0.86 | 2.58 | 3.3255 (19) | 146 |
Symmetry code: (i) −y+5/4, x−1/4, z−1/4. |
References
Bruker (1997). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Chiu, P., Chen, B. & Cheng, K. F. (1998). Tetrahedron Lett. 39, 9229–9232. Web of Science CSD CrossRef CAS Google Scholar
Cimerman, Z., Galic, N. & Bosner, B. (1997). Anal. Chim. Acta, 343, 145–153. CrossRef CAS Web of Science 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 bases have received considerable attention in the literature. They are attractive from several points of view, such as the possibility of analytical application (Cimerman et al., 1997). As part of our search for new schiff base compounds we synthesized the title compound (I), and describe its structure here.
In the title compound (I) (Fig. 1), the C12—N3 bond length of 1.2812 (17)Å is comparable with C—N double bond [1.284 (2) Å] reported (Chiu et al., 1998). The pyridine ring (N1/C1–C5) makes a dihedral angle of 46.90 (9)°, with the plane of the furan ring (O2/C6–C9).
The crsytal packing is stabilized by intermolecular N—H···O, N—H···N hydrogen bonds (Table 1, Fig. 2).