organic compounds
3-[3-(Pyridin-3-yl)-1,2,4-oxadiazol-5-yl]propanoic acid
aCollege of Chemical Engineering & Materials, Eastern Liaoning University, No. 325 Wenhua Road, Yuanbao District, Dandong City, Liaoning Province 118003, People's Republic of China, and bExperiment Center, Eastern Liaoning University, No. 325 Wenhua Road, Yuanbao District, Dandong City, Liaoning Province 118003, People's Republic of China
*Correspondence e-mail: berylliu8090@sina.com
In the title compound, C10H9N3O3, the benzene ring is almost coplanar with the heterocyclic ring, making a dihedral angle of 11.3 (1)°. The plane of the carboxyl group is rotated by 8.4 (2)° with respect to the 1,2,4-oxadiazole ring plane. The aliphatic chain exhibits an extended conformation. In the crystal, molecules are liked through intermolecular O—H⋯N bonds, forming a chain structure along the c axis.
Related literature
For the biological activity of 1,2,4-oxadiazoles, see: Jakopin & Dolenc, 2008). For the use of this heterocycle as a core for luminescent liquid crystals, see: Gallardo et al. (2008). For related structures, see: Santos et al. (2009); Wang et al. (2006, 2007)
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: XSCANS (Bruker, 2003); cell XSCANS; data reduction: XSCANS and SHELXTL (Sheldrick, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810051639/fk2032sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810051639/fk2032Isup2.hkl
To a solution of nitrile (0.2 mol) in ethanol (20 mL) was added hydroxylamine hydrochloride (0.4 mol) in water (40 mL). Then anhydrous sodium carbonate(0.4 mol) in water (120 mL) was slowly added to the resulting solution and the mixture was stirred at 358k for 5 h. The mixture was then concentrated under vacuum to evaporate some water. The resulting suspension was filtered, the amidoxime solid formed was washed with cold water, dried under vacuum. A thoroughly triturated mixture of amidoxime (0.04 mol) and succinic anhydride (0.08 mol) was heated in an oily bath to 403k and kept at this temperature for 4 h. The reaction mixture was cooled to room temperature, and the product was washed with cold water, filtered, and recrystallized from ethanol. Block-shaped crystals suitable for X-ray diffraction were obtained from methanol.
H atoms bound to C atoms were placed in calculated positions and treated as riding on their parent atoms, with C—H = 0.93 Å (aromatic C), C—H = 0.97Å (methylene C), and with Uiso(H) = 1.2Ueq(C). The H atom bound to O1 was located from Fourier difference map and refined with O—H = 0.82 Å, Uiso(H) = 1.5Ueq(O).
1,2,4-Oxadiazoles are well known compounds, which exhibit a large number of biological activities (Jakopin & Dolenc, 2008). Recently, the use of this heterocycle as core for luminescent liquid crystals has also been described (Gallardo et al., 2008). Here we report the structure of title compound (Fig. 1), the benzene ring is almost coplanar with the heterocyclic ring, making a dihedral angle of 11.3 (1) °. The torsion angle N2—C5—C6—C10 between the pyridine ring attached to C-5 of the 1,2,4-oxadiazole system is -8.0 (3) °, both rings are almost coplanar. The C-4 side-chain containing a carboxylic acid group shows a zigzag arrangement, having the torsion angle C1—C2—C3—C4 of -178.0 (2) °. In addition, the plane of the carboxylic group is also rotated by 8.4 (2) ° with respect to the mean plane of the 1,2,4-oxadiazole five-membered ring. This makes the molecular structure to be slightly twisted. In the
molecules are liked through intermolecular O—H···N, forming a one-dimensional chain structure along the crystallographic c axis.For the biological activity of 1,2,4-oxadiazoles, see: Jakopin & Dolenc, 2008). For the use of this heterocycle as a core for luminescent liquid crystals, see: Gallardo et al. (2008). For related structures, see: Santos et al. (2009); Wang et al. (2006, 2007)
Data collection: XSCANS (Bruker, 2003); cell
XSCANS (Bruker, 2003); data reduction: XSCANS (Bruker, 2003) and SHELXTL (Sheldrick, 2008); 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. Structure of the title compound showing 50% probability displacement ellipsoids. |
C10H9N3O3 | F(000) = 456 |
Mr = 219.20 | Dx = 1.487 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 6383 reflections |
a = 6.1298 (12) Å | θ = 3.1–27.5° |
b = 6.8194 (14) Å | µ = 0.11 mm−1 |
c = 23.426 (5) Å | T = 293 K |
V = 979.2 (3) Å3 | Block, colourless |
Z = 4 | 0.33 × 0.22 × 0.21 mm |
Bruker P4 diffractometer | 884 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.049 |
Graphite monochromator | θmax = 27.5°, θmin = 3.1° |
ω scans | h = −6→7 |
8147 measured reflections | k = −8→8 |
1138 independent reflections | l = −30→30 |
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)] = 0.034 | Hydrogen site location: geom and difmap |
wR(F2) = 0.083 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0487P)2] where P = (Fo2 + 2Fc2)/3 |
1138 reflections | (Δ/σ)max < 0.001 |
146 parameters | Δρmax = 0.14 e Å−3 |
1 restraint | Δρmin = −0.16 e Å−3 |
C10H9N3O3 | V = 979.2 (3) Å3 |
Mr = 219.20 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 6.1298 (12) Å | µ = 0.11 mm−1 |
b = 6.8194 (14) Å | T = 293 K |
c = 23.426 (5) Å | 0.33 × 0.22 × 0.21 mm |
Bruker P4 diffractometer | 884 reflections with I > 2σ(I) |
8147 measured reflections | Rint = 0.049 |
1138 independent reflections |
R[F2 > 2σ(F2)] = 0.034 | 1 restraint |
wR(F2) = 0.083 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.14 e Å−3 |
1138 reflections | Δρmin = −0.16 e Å−3 |
146 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 | ||
O3 | 0.8809 (3) | 0.4377 (3) | 0.16313 (7) | 0.0450 (5) | |
O1 | 0.4239 (4) | 0.4072 (4) | 0.33554 (8) | 0.0628 (6) | |
H1 | 0.3237 | 0.4277 | 0.3579 | 0.094* | |
O2 | 0.2140 (4) | 0.5819 (3) | 0.27757 (9) | 0.0681 (7) | |
N3 | 0.8817 (4) | 0.5436 (3) | −0.08242 (9) | 0.0468 (6) | |
C10 | 0.8297 (5) | 0.5499 (4) | −0.02742 (11) | 0.0412 (6) | |
H10 | 0.6895 | 0.5885 | −0.0173 | 0.049* | |
N2 | 0.6960 (4) | 0.5622 (3) | 0.09157 (9) | 0.0394 (5) | |
N1 | 1.0181 (4) | 0.4195 (3) | 0.11489 (9) | 0.0461 (5) | |
C6 | 0.9757 (4) | 0.5012 (4) | 0.01552 (11) | 0.0358 (5) | |
C5 | 0.8992 (4) | 0.4978 (3) | 0.07499 (10) | 0.0346 (5) | |
C1 | 0.3807 (5) | 0.4921 (4) | 0.28656 (12) | 0.0430 (6) | |
C2 | 0.5595 (4) | 0.4565 (4) | 0.24436 (11) | 0.0426 (6) | |
H2A | 0.5711 | 0.3167 | 0.2373 | 0.051* | |
H2B | 0.6967 | 0.5002 | 0.2606 | 0.051* | |
C3 | 0.5225 (5) | 0.5608 (4) | 0.18853 (10) | 0.0427 (6) | |
H3A | 0.3826 | 0.5204 | 0.1731 | 0.051* | |
H3B | 0.5153 | 0.7008 | 0.1956 | 0.051* | |
C8 | 1.2425 (5) | 0.4437 (4) | −0.05639 (12) | 0.0491 (7) | |
H8 | 1.3826 | 0.4088 | −0.0677 | 0.059* | |
C7 | 1.1881 (4) | 0.4503 (4) | 0.00047 (12) | 0.0449 (6) | |
H7 | 1.2912 | 0.4214 | 0.0284 | 0.054* | |
C4 | 0.6937 (4) | 0.5226 (3) | 0.14541 (10) | 0.0358 (5) | |
C9 | 1.0850 (5) | 0.4898 (4) | −0.09637 (13) | 0.0497 (7) | |
H9 | 1.1220 | 0.4832 | −0.1348 | 0.060* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O3 | 0.0460 (11) | 0.0605 (10) | 0.0285 (9) | 0.0084 (8) | −0.0026 (8) | 0.0037 (8) |
O1 | 0.0615 (14) | 0.0953 (16) | 0.0315 (10) | 0.0191 (11) | 0.0058 (9) | 0.0162 (10) |
O2 | 0.0625 (15) | 0.0933 (16) | 0.0484 (13) | 0.0305 (12) | 0.0078 (11) | 0.0187 (11) |
N3 | 0.0530 (14) | 0.0543 (12) | 0.0331 (12) | −0.0001 (10) | 0.0009 (10) | 0.0043 (10) |
C10 | 0.0439 (18) | 0.0467 (13) | 0.0329 (13) | 0.0034 (12) | −0.0010 (11) | 0.0005 (11) |
N2 | 0.0409 (11) | 0.0462 (11) | 0.0311 (11) | 0.0030 (9) | −0.0008 (10) | 0.0040 (9) |
N1 | 0.0466 (12) | 0.0580 (14) | 0.0336 (11) | 0.0079 (10) | 0.0017 (10) | 0.0048 (9) |
C6 | 0.0411 (14) | 0.0344 (10) | 0.0319 (12) | −0.0020 (11) | −0.0028 (11) | 0.0010 (9) |
C5 | 0.0388 (13) | 0.0340 (11) | 0.0310 (12) | −0.0018 (11) | −0.0043 (11) | 0.0008 (9) |
C1 | 0.0473 (17) | 0.0506 (14) | 0.0311 (13) | −0.0015 (13) | −0.0036 (12) | 0.0005 (10) |
C2 | 0.0437 (15) | 0.0525 (14) | 0.0316 (13) | 0.0027 (10) | −0.0015 (12) | 0.0018 (11) |
C3 | 0.0460 (15) | 0.0503 (13) | 0.0317 (13) | 0.0066 (12) | 0.0007 (12) | 0.0021 (11) |
C8 | 0.0450 (17) | 0.0503 (16) | 0.0521 (18) | −0.0005 (12) | 0.0116 (14) | −0.0025 (12) |
C7 | 0.0399 (15) | 0.0470 (14) | 0.0479 (17) | 0.0019 (12) | −0.0022 (13) | 0.0039 (12) |
C4 | 0.0382 (14) | 0.0361 (11) | 0.0332 (14) | 0.0011 (10) | −0.0050 (10) | −0.0013 (10) |
C9 | 0.0575 (19) | 0.0544 (15) | 0.0371 (15) | −0.0021 (14) | 0.0090 (13) | 0.0014 (12) |
O3—C4 | 1.351 (3) | C6—C5 | 1.470 (4) |
O3—N1 | 1.414 (3) | C1—C2 | 1.496 (4) |
O1—C1 | 1.312 (3) | C2—C3 | 1.506 (3) |
O1—H1 | 0.8200 | C2—H2A | 0.9700 |
O2—C1 | 1.210 (3) | C2—H2B | 0.9700 |
N3—C10 | 1.328 (4) | C3—C4 | 1.480 (3) |
N3—C9 | 1.340 (4) | C3—H3A | 0.9700 |
C10—C6 | 1.387 (4) | C3—H3B | 0.9700 |
C10—H10 | 0.9300 | C8—C7 | 1.374 (4) |
N2—C4 | 1.290 (3) | C8—C9 | 1.381 (4) |
N2—C5 | 1.377 (3) | C8—H8 | 0.9300 |
N1—C5 | 1.300 (3) | C7—H7 | 0.9300 |
C6—C7 | 1.393 (4) | C9—H9 | 0.9300 |
C4—O3—N1 | 107.29 (18) | C3—C2—H2B | 109.0 |
C1—O1—H1 | 109.5 | H2A—C2—H2B | 107.8 |
C10—N3—C9 | 117.9 (2) | C4—C3—C2 | 113.7 (2) |
N3—C10—C6 | 122.8 (3) | C4—C3—H3A | 108.8 |
N3—C10—H10 | 118.6 | C2—C3—H3A | 108.8 |
C6—C10—H10 | 118.6 | C4—C3—H3B | 108.8 |
C4—N2—C5 | 102.6 (2) | C2—C3—H3B | 108.8 |
C5—N1—O3 | 101.84 (19) | H3A—C3—H3B | 107.7 |
C10—C6—C7 | 118.6 (2) | C7—C8—C9 | 118.7 (3) |
C10—C6—C5 | 119.1 (2) | C7—C8—H8 | 120.6 |
C7—C6—C5 | 122.3 (2) | C9—C8—H8 | 120.6 |
N1—C5—N2 | 115.8 (2) | C8—C7—C6 | 118.7 (2) |
N1—C5—C6 | 120.6 (2) | C8—C7—H7 | 120.6 |
N2—C5—C6 | 123.4 (2) | C6—C7—H7 | 120.6 |
O2—C1—O1 | 123.1 (3) | N2—C4—O3 | 112.4 (2) |
O2—C1—C2 | 125.9 (3) | N2—C4—C3 | 129.6 (3) |
O1—C1—C2 | 111.0 (2) | O3—C4—C3 | 117.9 (2) |
C1—C2—C3 | 112.8 (2) | N3—C9—C8 | 123.2 (3) |
C1—C2—H2A | 109.0 | N3—C9—H9 | 118.4 |
C3—C2—H2A | 109.0 | C8—C9—H9 | 118.4 |
C1—C2—H2B | 109.0 | ||
C9—N3—C10—C6 | −0.8 (4) | O1—C1—C2—C3 | −176.8 (2) |
C4—O3—N1—C5 | 1.1 (2) | C1—C2—C3—C4 | −178.1 (2) |
N3—C10—C6—C7 | 2.4 (4) | C9—C8—C7—C6 | 0.7 (4) |
N3—C10—C6—C5 | −175.4 (2) | C10—C6—C7—C8 | −2.3 (4) |
O3—N1—C5—N2 | −1.3 (3) | C5—C6—C7—C8 | 175.4 (2) |
O3—N1—C5—C6 | −176.9 (2) | C5—N2—C4—O3 | −0.2 (3) |
C4—N2—C5—N1 | 1.0 (3) | C5—N2—C4—C3 | 178.2 (2) |
C4—N2—C5—C6 | 176.4 (2) | N1—O3—C4—N2 | −0.6 (3) |
C10—C6—C5—N1 | 167.5 (2) | N1—O3—C4—C3 | −179.1 (2) |
C7—C6—C5—N1 | −10.2 (3) | C2—C3—C4—N2 | 168.1 (2) |
C10—C6—C5—N2 | −7.7 (3) | C2—C3—C4—O3 | −13.6 (3) |
C7—C6—C5—N2 | 174.6 (2) | C10—N3—C9—C8 | −0.9 (4) |
O2—C1—C2—C3 | 5.1 (4) | C7—C8—C9—N3 | 0.9 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N3i | 0.82 | 1.89 | 2.704 (3) | 172 |
Symmetry code: (i) −x+1, −y+1, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C10H9N3O3 |
Mr | 219.20 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 293 |
a, b, c (Å) | 6.1298 (12), 6.8194 (14), 23.426 (5) |
V (Å3) | 979.2 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.33 × 0.22 × 0.21 |
Data collection | |
Diffractometer | Bruker P4 |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8147, 1138, 884 |
Rint | 0.049 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.083, 1.00 |
No. of reflections | 1138 |
No. of parameters | 146 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.14, −0.16 |
Computer programs: XSCANS (Bruker, 2003) and SHELXTL (Sheldrick, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N3i | 0.82 | 1.89 | 2.704 (3) | 172 |
Symmetry code: (i) −x+1, −y+1, z+1/2. |
Acknowledgements
The authors gratefully acknowledge financial support from the Education Department of Liaoning Province (2009 A 265) and Liaoning University.
References
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1,2,4-Oxadiazoles are well known compounds, which exhibit a large number of biological activities (Jakopin & Dolenc, 2008). Recently, the use of this heterocycle as core for luminescent liquid crystals has also been described (Gallardo et al., 2008). Here we report the structure of title compound (Fig. 1), the benzene ring is almost coplanar with the heterocyclic ring, making a dihedral angle of 11.3 (1) °. The torsion angle N2—C5—C6—C10 between the pyridine ring attached to C-5 of the 1,2,4-oxadiazole system is -8.0 (3) °, both rings are almost coplanar. The C-4 side-chain containing a carboxylic acid group shows a zigzag arrangement, having the torsion angle C1—C2—C3—C4 of -178.0 (2) °. In addition, the plane of the carboxylic group is also rotated by 8.4 (2) ° with respect to the mean plane of the 1,2,4-oxadiazole five-membered ring. This makes the molecular structure to be slightly twisted. In the crystal structure, molecules are liked through intermolecular O—H···N, forming a one-dimensional chain structure along the crystallographic c axis.