organic compounds
2-(4-Ethoxycarbonyl-5-methyl-1H-1,2,3-triazol-1-yl)acetic acid monohydrate
aSchool of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China
*Correspondence e-mail: zhaohong@seu.edu.cn
The title compound, C8H11N3O4·H2O, was synthesized by reaction of 2-azidoacetic acid and ethyl acetylacetate. In the crystal packing, molecules are linked by strong intermolecular O—H⋯N and O—H⋯O hydrogen bonds into double layers parallel to the ab plane.
Related literature
For the biological activities of triazole derivatives, see: Olesen et al. (2003); Tian et al. (2005). For the synthesis, see: El Khadem et al. (1968). For related structures, see: Lin et al. (2008); Xiao et al. (2008); Zhao (2009).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL/PC (Sheldrick, 2008); software used to prepare material for publication: SHELXTL/PC.
Supporting information
https://doi.org/10.1107/S1600536810043813/rz2507sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810043813/rz2507Isup2.hkl
The title compound was prepared from 2-azidoacetic acid according to the reported method (El Khadem et al., 1968). Colourless prismatic crystal suitable for X-ray analysis were obtained by slow evaporation of a 95% ethanol/water solution.
The water H atoms were located from a difference Fourier map but not refined [Uiso(H) = 1.5Ueq(O)]. All other H atoms were fixed geometrically and treated as riding with C—H = 0.96–0.97 Å, O—H = 0.82 Å, and with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(C, O) for methyl and carboxy H atoms.
Triazole derivatives have attracted considerable attention due to their biological activities (Olesen et al., 2003; Tian et al., 2005). Recently, we have reported the crystal structures of a few triazole compounds (Lin et al., 2008; Xiao et al., 2008; Zhao, 2009). As an extension of our work on the structural characterization of triazole derivatives, the
of the title compound is reported here.In the molecule of the title compound (Fig. 1) bond lengths and angles have normal values. The crystal packing is stabilized by strong intermolecular O—H···N and O—H···O hydrogen bonds involving the triazole and water molecules (Fig. 2; Table 1) forming double layers parallel to the ab plane.
For the biological activities of triazole derivatives, see: Olesen et al. (2003); Tian et al. (2005). For the synthesis of the title compound, see: El Khadem et al. (1968). For the structure of related compounds, see: Lin et al. (2008); Xiao et al. (2008); Zhao (2009).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL/PC (Version 5.1; Sheldrick, 2008); software used to prepare material for publication: SHELXTL/PC (Version 5.1; Sheldrick, 2008).C8H11N3O4·H2O | F(000) = 976 |
Mr = 231.21 | Dx = 1.339 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2099 reflections |
a = 18.6082 (15) Å | θ = 2.7–27.5° |
b = 8.2295 (15) Å | µ = 0.11 mm−1 |
c = 14.986 (2) Å | T = 295 K |
β = 92.050 (5)° | Prism, colourless |
V = 2293.4 (6) Å3 | 0.35 × 0.32 × 0.28 mm |
Z = 8 |
Rigaku SCXmini diffractometer | 2490 independent reflections |
Radiation source: fine-focus sealed tube | 1536 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.0°, θmin = 2.7° |
CCD_Profile_fitting scans | h = −23→23 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −10→10 |
Tmin = 0.960, Tmax = 0.970 | l = −19→19 |
10958 measured reflections |
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)] = 0.066 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.189 | H-atom parameters constrained |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0861P)2 + 0.6922P] where P = (Fo2 + 2Fc2)/3 |
2490 reflections | (Δ/σ)max < 0.001 |
148 parameters | Δρmax = 0.28 e Å−3 |
0 restraints | Δρmin = −0.20 e Å−3 |
C8H11N3O4·H2O | V = 2293.4 (6) Å3 |
Mr = 231.21 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 18.6082 (15) Å | µ = 0.11 mm−1 |
b = 8.2295 (15) Å | T = 295 K |
c = 14.986 (2) Å | 0.35 × 0.32 × 0.28 mm |
β = 92.050 (5)° |
Rigaku SCXmini diffractometer | 2490 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 1536 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.970 | Rint = 0.051 |
10958 measured reflections |
R[F2 > 2σ(F2)] = 0.066 | 0 restraints |
wR(F2) = 0.189 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.28 e Å−3 |
2490 reflections | Δρmin = −0.20 e Å−3 |
148 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 | 0.81442 (14) | −0.2524 (3) | 0.37722 (19) | 0.0552 (6) | |
C2 | 0.87508 (14) | −0.2098 (3) | 0.44180 (18) | 0.0611 (7) | |
H2A | 0.8554 | −0.1835 | 0.4991 | 0.073* | |
H2B | 0.9059 | −0.3041 | 0.4502 | 0.073* | |
C3 | 0.90266 (14) | 0.0868 (3) | 0.41202 (18) | 0.0557 (6) | |
C4 | 0.83230 (16) | 0.1554 (4) | 0.4359 (3) | 0.0936 (12) | |
H4A | 0.7981 | 0.1402 | 0.3871 | 0.140* | |
H4B | 0.8376 | 0.2694 | 0.4481 | 0.140* | |
H4C | 0.8156 | 0.1012 | 0.4880 | 0.140* | |
C5 | 0.96537 (13) | 0.1568 (3) | 0.38496 (18) | 0.0542 (6) | |
C6 | 0.98182 (15) | 0.3313 (3) | 0.3765 (2) | 0.0631 (7) | |
N1 | 0.91816 (11) | −0.0742 (2) | 0.41279 (14) | 0.0552 (6) | |
N2 | 0.98618 (12) | −0.1025 (3) | 0.38793 (17) | 0.0658 (6) | |
N3 | 1.01479 (11) | 0.0386 (2) | 0.37055 (17) | 0.0629 (6) | |
O1 | 0.77303 (11) | −0.3646 (2) | 0.41090 (13) | 0.0687 (6) | |
H1 | 0.7401 | −0.3861 | 0.3750 | 0.103* | |
O2 | 0.80534 (12) | −0.1933 (3) | 0.30435 (15) | 0.0828 (7) | |
O3 | 0.93857 (12) | 0.4367 (2) | 0.38956 (19) | 0.0963 (8) | |
O4 | 1.04841 (10) | 0.3565 (2) | 0.35401 (16) | 0.0787 (7) | |
O1W | 0.66222 (12) | 0.5429 (3) | 0.31857 (17) | 0.1016 (9) | |
H1E | 0.6157 | 0.5328 | 0.3366 | 0.152* | |
H1F | 0.6724 | 0.4673 | 0.2751 | 0.152* | |
C7 | 1.07274 (18) | 0.5254 (4) | 0.3491 (3) | 0.0975 (13) | |
H7A | 1.0559 | 0.5733 | 0.2931 | 0.117* | |
H7B | 1.0531 | 0.5877 | 0.3975 | 0.117* | |
C8 | 1.1478 (2) | 0.5300 (5) | 0.3554 (4) | 0.1357 (19) | |
H8A | 1.1645 | 0.4680 | 0.4063 | 0.204* | |
H8B | 1.1635 | 0.6406 | 0.3620 | 0.204* | |
H8C | 1.1669 | 0.4846 | 0.3022 | 0.204* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0569 (15) | 0.0444 (13) | 0.0649 (16) | −0.0084 (11) | 0.0111 (12) | −0.0044 (12) |
C2 | 0.0590 (16) | 0.0525 (15) | 0.0720 (17) | −0.0113 (12) | 0.0030 (13) | 0.0027 (13) |
C3 | 0.0483 (14) | 0.0482 (14) | 0.0705 (16) | −0.0026 (11) | 0.0034 (12) | −0.0085 (12) |
C4 | 0.0614 (19) | 0.068 (2) | 0.154 (3) | −0.0031 (16) | 0.031 (2) | −0.017 (2) |
C5 | 0.0462 (14) | 0.0448 (13) | 0.0713 (16) | −0.0019 (11) | −0.0012 (12) | −0.0070 (12) |
C6 | 0.0556 (16) | 0.0482 (14) | 0.085 (2) | −0.0050 (13) | −0.0067 (14) | −0.0044 (13) |
N1 | 0.0482 (12) | 0.0445 (11) | 0.0729 (14) | −0.0073 (9) | 0.0042 (10) | −0.0021 (10) |
N2 | 0.0493 (13) | 0.0470 (12) | 0.1013 (18) | −0.0040 (10) | 0.0066 (12) | 0.0008 (12) |
N3 | 0.0462 (12) | 0.0470 (12) | 0.0956 (17) | −0.0039 (9) | 0.0059 (11) | −0.0033 (11) |
O1 | 0.0652 (12) | 0.0675 (12) | 0.0739 (12) | −0.0251 (10) | 0.0078 (9) | −0.0006 (10) |
O2 | 0.0906 (16) | 0.0848 (15) | 0.0724 (13) | −0.0321 (12) | −0.0074 (11) | 0.0157 (12) |
O3 | 0.0744 (15) | 0.0479 (11) | 0.167 (2) | 0.0032 (11) | 0.0108 (15) | −0.0080 (13) |
O4 | 0.0532 (11) | 0.0499 (11) | 0.1330 (19) | −0.0134 (9) | 0.0037 (11) | 0.0032 (11) |
O1W | 0.0557 (13) | 0.122 (2) | 0.128 (2) | −0.0154 (12) | 0.0168 (13) | −0.0639 (16) |
C7 | 0.075 (2) | 0.0488 (17) | 0.168 (4) | −0.0179 (15) | −0.011 (2) | 0.014 (2) |
C8 | 0.095 (3) | 0.094 (3) | 0.216 (5) | −0.049 (2) | −0.031 (3) | 0.050 (3) |
C1—O2 | 1.202 (3) | C6—O3 | 1.204 (3) |
C1—O1 | 1.315 (3) | C6—O4 | 1.312 (3) |
C1—C2 | 1.502 (4) | N1—N2 | 1.352 (3) |
C2—N1 | 1.450 (3) | N2—N3 | 1.307 (3) |
C2—H2A | 0.9700 | O1—H1 | 0.8200 |
C2—H2B | 0.9700 | O4—C7 | 1.465 (3) |
C3—N1 | 1.356 (3) | O1W—H1E | 0.9194 |
C3—C5 | 1.375 (3) | O1W—H1F | 0.9251 |
C3—C4 | 1.481 (4) | C7—C8 | 1.396 (5) |
C4—H4A | 0.9600 | C7—H7A | 0.9700 |
C4—H4B | 0.9600 | C7—H7B | 0.9700 |
C4—H4C | 0.9600 | C8—H8A | 0.9600 |
C5—N3 | 1.361 (3) | C8—H8B | 0.9600 |
C5—C6 | 1.475 (3) | C8—H8C | 0.9600 |
O2—C1—O1 | 124.6 (3) | O3—C6—C5 | 123.0 (3) |
O2—C1—C2 | 124.7 (2) | O4—C6—C5 | 112.1 (2) |
O1—C1—C2 | 110.7 (2) | N2—N1—C3 | 111.5 (2) |
N1—C2—C1 | 113.4 (2) | N2—N1—C2 | 118.9 (2) |
N1—C2—H2A | 108.9 | C3—N1—C2 | 129.4 (2) |
C1—C2—H2A | 108.9 | N3—N2—N1 | 107.1 (2) |
N1—C2—H2B | 108.9 | N2—N3—C5 | 108.7 (2) |
C1—C2—H2B | 108.9 | C1—O1—H1 | 109.5 |
H2A—C2—H2B | 107.7 | C6—O4—C7 | 117.3 (2) |
N1—C3—C5 | 103.2 (2) | H1E—O1W—H1F | 111.4 |
N1—C3—C4 | 124.1 (2) | C8—C7—O4 | 109.4 (3) |
C5—C3—C4 | 132.7 (2) | C8—C7—H7A | 109.8 |
C3—C4—H4A | 109.5 | O4—C7—H7A | 109.8 |
C3—C4—H4B | 109.5 | C8—C7—H7B | 109.8 |
H4A—C4—H4B | 109.5 | O4—C7—H7B | 109.8 |
C3—C4—H4C | 109.5 | H7A—C7—H7B | 108.2 |
H4A—C4—H4C | 109.5 | C7—C8—H8A | 109.5 |
H4B—C4—H4C | 109.5 | C7—C8—H8B | 109.5 |
N3—C5—C3 | 109.4 (2) | H8A—C8—H8B | 109.5 |
N3—C5—C6 | 122.6 (2) | C7—C8—H8C | 109.5 |
C3—C5—C6 | 127.9 (2) | H8A—C8—H8C | 109.5 |
O3—C6—O4 | 124.8 (3) | H8B—C8—H8C | 109.5 |
O2—C1—C2—N1 | 7.1 (4) | C5—C3—N1—C2 | 175.1 (3) |
O1—C1—C2—N1 | −173.6 (2) | C4—C3—N1—C2 | −5.1 (4) |
N1—C3—C5—N3 | 0.2 (3) | C1—C2—N1—N2 | −110.4 (3) |
C4—C3—C5—N3 | −179.6 (3) | C1—C2—N1—C3 | 74.9 (3) |
N1—C3—C5—C6 | −176.4 (3) | C3—N1—N2—N3 | −0.4 (3) |
C4—C3—C5—C6 | 3.8 (5) | C2—N1—N2—N3 | −176.0 (2) |
N3—C5—C6—O3 | −179.6 (3) | N1—N2—N3—C5 | 0.5 (3) |
C3—C5—C6—O3 | −3.4 (5) | C3—C5—N3—N2 | −0.4 (3) |
N3—C5—C6—O4 | −0.1 (4) | C6—C5—N3—N2 | 176.4 (3) |
C3—C5—C6—O4 | 176.1 (3) | O3—C6—O4—C7 | 3.4 (5) |
C5—C3—N1—N2 | 0.1 (3) | C5—C6—O4—C7 | −176.1 (3) |
C4—C3—N1—N2 | 179.9 (3) | C6—O4—C7—C8 | 159.6 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1F···O2i | 0.93 | 1.84 | 2.759 (3) | 176 |
O1W—H1E···N3ii | 0.92 | 1.96 | 2.879 (3) | 173 |
O1—H1···O1Wiii | 0.82 | 1.75 | 2.558 (3) | 167 |
Symmetry codes: (i) −x+3/2, y+1/2, −z+1/2; (ii) x−1/2, y+1/2, z; (iii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C8H11N3O4·H2O |
Mr | 231.21 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 295 |
a, b, c (Å) | 18.6082 (15), 8.2295 (15), 14.986 (2) |
β (°) | 92.050 (5) |
V (Å3) | 2293.4 (6) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.35 × 0.32 × 0.28 |
Data collection | |
Diffractometer | Rigaku SCXmini |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.960, 0.970 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10958, 2490, 1536 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.638 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.066, 0.189, 1.09 |
No. of reflections | 2490 |
No. of parameters | 148 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.28, −0.20 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL/PC (Version 5.1; Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1F···O2i | 0.93 | 1.84 | 2.759 (3) | 175.7 |
O1W—H1E···N3ii | 0.92 | 1.96 | 2.879 (3) | 173.1 |
O1—H1···O1Wiii | 0.82 | 1.75 | 2.558 (3) | 166.9 |
Symmetry codes: (i) −x+3/2, y+1/2, −z+1/2; (ii) x−1/2, y+1/2, z; (iii) x, y−1, z. |
Acknowledgements
This work was supported by financial support from Southeast University for young researchers (grant No. 4007041027).
References
El Khadem, H., Mansour, H. A. R. & Meshreki, M. H. (1968). J. Chem. Soc. C, pp. 1329–1331. Google Scholar
Lin, J. R., Yao, J. Y. & Zhao, H. (2008). Acta Cryst. E64, o1843. Web of Science CSD CrossRef IUCr Journals Google Scholar
Olesen, P. H., Sorensen, A. R., Urso, B., Kurtzhals, P., Bowler, A. N., Ehrbar, U. & Hansen, B. F. (2003). J. Med. Chem. 46, 3333–3341. Web of Science CrossRef PubMed CAS Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Tian, L., Sun, Y., Li, H., Zheng, X., Cheng, Y., Liu, X. & Qian, B. (2005). J. Inorg. Biochem. 99, 1646–1652. Web of Science CSD CrossRef PubMed CAS Google Scholar
Xiao, J., Wang, W. X. & Zhao, H. (2008). Acta Cryst. E64, o2085. Web of Science CSD CrossRef IUCr Journals Google Scholar
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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.
Triazole derivatives have attracted considerable attention due to their biological activities (Olesen et al., 2003; Tian et al., 2005). Recently, we have reported the crystal structures of a few triazole compounds (Lin et al., 2008; Xiao et al., 2008; Zhao, 2009). As an extension of our work on the structural characterization of triazole derivatives, the crystal structure of the title compound is reported here.
In the molecule of the title compound (Fig. 1) bond lengths and angles have normal values. The crystal packing is stabilized by strong intermolecular O—H···N and O—H···O hydrogen bonds involving the triazole and water molecules (Fig. 2; Table 1) forming double layers parallel to the ab plane.