organic compounds
Ethyl 3-[1-(2-hydroxyphenyl)ethylidene]carbazate
aMicroscale Science Institute, Department of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, People's Republic of China, and bMicroscale Science Institute, Weifang University, Weifang 261061, People's Republic of China
*Correspondence e-mail: liyufeng8111@163.com
The title compound, C11H14N2O3, was prepared by the reaction of ethyl carbazate and 1-(2-hydroxyphenyl)ethanone. In the molecules are linked by intermolecular N—H⋯O hydrogen bonds, forming centrosymmetric dimers. An intramolecular O—H⋯N interaction also occurs.
Related literature
For the applications of Schiff base compounds, see: Cimerman et al. (1997); Forthe C=N double-bond length in a related structure, see: Girgis (2006).
Experimental
Crystal data
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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/S1600536809044602/lh2935sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809044602/lh2935Isup2.hkl
A mixture of the 1-(2-hydroxyphenyl)ethanone (0.1 mol), and Ethyl carbazate (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 of (I) from ethanol at room temperature.
H atoms bonded to the O atom, the N atom and those bonded to C8 were refined independently with isotropic displacement parameters. All other H atoms were fixed geometrically and allowed to ride on their attached atoms, with C—H distances = 0.93–0.97 Å Uiso(H) = 1.2Ueq(C) or 1.5Ueq(Cmethyl).
Schiff bases have received considerable attention in the literature and have potential analytical applications (Cimerman et al., 1997). 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 (I) is shown in Fig. 1. The C7—N1 bond length of 1.2836 (18)Å is comparable with C—N double bond [1.281 (2) Å] reported (Girgis, 2006). In the
molecules are linked by intermolecular N—H···O hydrogen bonds to form centrosymmetric dimers.For the applications of Schiff base compounds, see: Cimerman et al. (1997); Forthe C═N double-bond length in a related structure, see: Girgis (2006).
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. |
C11H14N2O3 | Z = 2 |
Mr = 222.24 | F(000) = 236 |
Triclinic, P1 | Dx = 1.293 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 5.4830 (11) Å | Cell parameters from 1974 reflections |
b = 10.191 (2) Å | θ = 3.5–27.5° |
c = 11.410 (2) Å | µ = 0.10 mm−1 |
α = 112.53 (3)° | T = 293 K |
β = 95.79 (3)° | Block, colorless |
γ = 99.68 (3)° | 0.22 × 0.20 × 0.18 mm |
V = 570.9 (2) Å3 |
Bruker SMART CCD diffractometer | 2597 independent reflections |
Radiation source: fine-focus sealed tube | 1839 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.016 |
φ and ω scans | θmax = 27.5°, θmin = 3.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −7→6 |
Tmin = 0.491, Tmax = 0.728 | k = −13→13 |
5650 measured reflections | l = −14→14 |
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)] = 0.047 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.180 | w = 1/[σ2(Fo2) + (0.1217P)2 + 0.0113P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max = 0.003 |
2597 reflections | Δρmax = 0.23 e Å−3 |
166 parameters | Δρmin = −0.23 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: 0.043 (14) |
C11H14N2O3 | γ = 99.68 (3)° |
Mr = 222.24 | V = 570.9 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.4830 (11) Å | Mo Kα radiation |
b = 10.191 (2) Å | µ = 0.10 mm−1 |
c = 11.410 (2) Å | T = 293 K |
α = 112.53 (3)° | 0.22 × 0.20 × 0.18 mm |
β = 95.79 (3)° |
Bruker SMART CCD diffractometer | 2597 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1839 reflections with I > 2σ(I) |
Tmin = 0.491, Tmax = 0.728 | Rint = 0.016 |
5650 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 0 restraints |
wR(F2) = 0.180 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.23 e Å−3 |
2597 reflections | Δρmin = −0.23 e Å−3 |
166 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 | 0.4674 (2) | 0.34070 (13) | 0.74631 (11) | 0.0681 (4) | |
O1 | 0.2984 (2) | 0.09910 (13) | 1.08787 (10) | 0.0676 (4) | |
O2 | 0.52301 (18) | 0.24189 (11) | 1.00894 (9) | 0.0549 (3) | |
N1 | 0.1757 (2) | 0.16596 (12) | 0.81259 (10) | 0.0476 (3) | |
N2 | 0.1444 (2) | 0.10360 (14) | 0.89965 (11) | 0.0536 (3) | |
C1 | 0.0453 (2) | 0.20676 (14) | 0.63011 (12) | 0.0453 (3) | |
C9 | 0.3238 (3) | 0.14591 (16) | 1.00535 (13) | 0.0505 (4) | |
C7 | −0.0055 (2) | 0.13722 (14) | 0.71973 (12) | 0.0440 (3) | |
C3 | 0.3121 (3) | 0.36489 (19) | 0.55821 (16) | 0.0682 (5) | |
H3B | 0.4653 | 0.4273 | 0.5690 | 0.082* | |
C2 | 0.2752 (3) | 0.30312 (15) | 0.64688 (14) | 0.0512 (4) | |
C10 | 0.7203 (3) | 0.29608 (19) | 1.12246 (15) | 0.0635 (4) | |
H10A | 0.7912 | 0.2169 | 1.1274 | 0.076* | |
H10B | 0.6526 | 0.3396 | 1.2002 | 0.076* | |
C8 | −0.2561 (3) | 0.0382 (2) | 0.69869 (19) | 0.0638 (5) | |
C5 | −0.0996 (4) | 0.2415 (2) | 0.43765 (17) | 0.0728 (5) | |
H5A | −0.2254 | 0.2202 | 0.3677 | 0.087* | |
C6 | −0.1370 (3) | 0.17999 (19) | 0.52442 (16) | 0.0626 (4) | |
H6A | −0.2912 | 0.1176 | 0.5120 | 0.075* | |
C4 | 0.1279 (4) | 0.3354 (2) | 0.45604 (17) | 0.0737 (5) | |
H4A | 0.1555 | 0.3787 | 0.3987 | 0.088* | |
C11 | 0.9167 (3) | 0.40714 (19) | 1.10931 (17) | 0.0706 (5) | |
H11A | 1.0503 | 0.4458 | 1.1829 | 0.106* | |
H11B | 0.8441 | 0.4846 | 1.1043 | 0.106* | |
H11C | 0.9825 | 0.3626 | 1.0323 | 0.106* | |
H3A | 0.407 (5) | 0.283 (3) | 0.794 (2) | 0.107 (8)* | |
H2A | −0.001 (4) | 0.039 (2) | 0.8940 (17) | 0.074 (5)* | |
H8A | −0.392 (5) | 0.072 (3) | 0.670 (2) | 0.127 (9)* | |
H8B | −0.298 (5) | 0.034 (3) | 0.767 (3) | 0.133 (10)* | |
H8C | −0.259 (6) | −0.042 (4) | 0.637 (3) | 0.139 (11)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O3 | 0.0548 (6) | 0.0760 (7) | 0.0715 (7) | −0.0132 (5) | −0.0027 (5) | 0.0428 (6) |
O1 | 0.0639 (7) | 0.0847 (8) | 0.0621 (6) | −0.0099 (5) | −0.0004 (5) | 0.0522 (6) |
O2 | 0.0530 (6) | 0.0615 (6) | 0.0509 (5) | −0.0086 (4) | −0.0006 (4) | 0.0349 (5) |
N1 | 0.0485 (6) | 0.0524 (6) | 0.0464 (6) | 0.0009 (4) | 0.0051 (5) | 0.0302 (5) |
N2 | 0.0497 (7) | 0.0614 (7) | 0.0534 (6) | −0.0050 (5) | 0.0018 (5) | 0.0365 (5) |
C1 | 0.0476 (7) | 0.0474 (7) | 0.0444 (7) | 0.0075 (5) | 0.0079 (5) | 0.0239 (5) |
C9 | 0.0533 (7) | 0.0528 (7) | 0.0499 (7) | 0.0019 (6) | 0.0069 (6) | 0.0306 (6) |
C7 | 0.0426 (6) | 0.0461 (7) | 0.0435 (6) | 0.0042 (5) | 0.0072 (5) | 0.0209 (5) |
C3 | 0.0708 (10) | 0.0677 (10) | 0.0746 (10) | −0.0033 (7) | 0.0139 (8) | 0.0458 (8) |
C2 | 0.0524 (8) | 0.0489 (7) | 0.0534 (7) | 0.0032 (5) | 0.0080 (6) | 0.0257 (6) |
C10 | 0.0605 (9) | 0.0695 (10) | 0.0554 (8) | −0.0072 (7) | −0.0040 (7) | 0.0326 (7) |
C8 | 0.0498 (8) | 0.0802 (11) | 0.0650 (9) | −0.0084 (7) | 0.0004 (7) | 0.0454 (9) |
C5 | 0.0723 (11) | 0.0932 (13) | 0.0665 (9) | 0.0105 (9) | 0.0020 (8) | 0.0531 (9) |
C6 | 0.0535 (8) | 0.0794 (10) | 0.0601 (8) | 0.0011 (7) | 0.0020 (7) | 0.0417 (8) |
C4 | 0.0878 (12) | 0.0808 (11) | 0.0724 (10) | 0.0118 (9) | 0.0155 (9) | 0.0552 (9) |
C11 | 0.0631 (9) | 0.0640 (10) | 0.0740 (10) | −0.0072 (7) | 0.0042 (8) | 0.0274 (8) |
O3—C2 | 1.3543 (19) | C3—H3B | 0.9300 |
O3—H3A | 0.98 (2) | C10—C11 | 1.489 (2) |
O1—C9 | 1.2173 (16) | C10—H10A | 0.9700 |
O2—C9 | 1.3237 (17) | C10—H10B | 0.9700 |
O2—C10 | 1.4563 (18) | C8—H8A | 0.95 (3) |
N1—C7 | 1.2836 (18) | C8—H8B | 0.85 (3) |
N1—N2 | 1.3790 (15) | C8—H8C | 0.84 (3) |
N2—C9 | 1.3521 (19) | C5—C6 | 1.374 (2) |
N2—H2A | 0.92 (2) | C5—C4 | 1.381 (3) |
C1—C6 | 1.393 (2) | C5—H5A | 0.9300 |
C1—C2 | 1.408 (2) | C6—H6A | 0.9300 |
C1—C7 | 1.4737 (18) | C4—H4A | 0.9300 |
C7—C8 | 1.4988 (19) | C11—H11A | 0.9600 |
C3—C4 | 1.365 (2) | C11—H11B | 0.9600 |
C3—C2 | 1.395 (2) | C11—H11C | 0.9600 |
C2—O3—H3A | 104.2 (15) | O2—C10—H10B | 110.3 |
C9—O2—C10 | 116.29 (10) | C11—C10—H10B | 110.3 |
C7—N1—N2 | 119.65 (11) | H10A—C10—H10B | 108.6 |
C9—N2—N1 | 119.71 (11) | C7—C8—H8A | 112.7 (16) |
C9—N2—H2A | 116.8 (11) | C7—C8—H8B | 114 (2) |
N1—N2—H2A | 123.3 (11) | H8A—C8—H8B | 101 (2) |
C6—C1—C2 | 116.97 (12) | C7—C8—H8C | 107 (2) |
C6—C1—C7 | 120.60 (12) | H8A—C8—H8C | 105 (3) |
C2—C1—C7 | 122.43 (12) | H8B—C8—H8C | 117 (3) |
O1—C9—O2 | 124.75 (13) | C6—C5—C4 | 118.87 (16) |
O1—C9—N2 | 121.90 (13) | C6—C5—H5A | 120.6 |
O2—C9—N2 | 113.34 (11) | C4—C5—H5A | 120.6 |
N1—C7—C1 | 116.09 (11) | C5—C6—C1 | 123.05 (15) |
N1—C7—C8 | 123.84 (12) | C5—C6—H6A | 118.5 |
C1—C7—C8 | 120.06 (12) | C1—C6—H6A | 118.5 |
C4—C3—C2 | 121.27 (14) | C3—C4—C5 | 120.15 (14) |
C4—C3—H3B | 119.4 | C3—C4—H4A | 119.9 |
C2—C3—H3B | 119.4 | C5—C4—H4A | 119.9 |
O3—C2—C3 | 117.02 (13) | C10—C11—H11A | 109.5 |
O3—C2—C1 | 123.31 (12) | C10—C11—H11B | 109.5 |
C3—C2—C1 | 119.67 (13) | H11A—C11—H11B | 109.5 |
O2—C10—C11 | 107.04 (13) | C10—C11—H11C | 109.5 |
O2—C10—H10A | 110.3 | H11A—C11—H11C | 109.5 |
C11—C10—H10A | 110.3 | H11B—C11—H11C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O1i | 0.92 (2) | 2.05 (2) | 2.9649 (19) | 170.4 (16) |
O3—H3A···N1 | 0.98 (3) | 1.68 (3) | 2.5728 (19) | 149 (2) |
Symmetry code: (i) −x, −y, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C11H14N2O3 |
Mr | 222.24 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 5.4830 (11), 10.191 (2), 11.410 (2) |
α, β, γ (°) | 112.53 (3), 95.79 (3), 99.68 (3) |
V (Å3) | 570.9 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.22 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.491, 0.728 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5650, 2597, 1839 |
Rint | 0.016 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.047, 0.180, 1.08 |
No. of reflections | 2597 |
No. of parameters | 166 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.23 |
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 | 0.92 (2) | 2.05 (2) | 2.9649 (19) | 170.4 (16) |
O3—H3A···N1 | 0.98 (3) | 1.68 (3) | 2.5728 (19) | 149 (2) |
Symmetry code: (i) −x, −y, −z+2. |
Acknowledgements
The authors would like to thank the Science Foundation of WeiFang University (No. 2009Z24).
References
Bruker (1997). SMART and SAINT, Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cimerman, Z., Galic, N. & Bosner, B. (1997). Anal. Chim. Acta, 343, 145–153. CrossRef CAS Web of Science Google Scholar
Girgis, A. S. (2006). J. Chem. Res. pp. 81–85. CrossRef Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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Schiff bases have received considerable attention in the literature and have potential analytical applications (Cimerman et al., 1997). 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 (I) is shown in Fig. 1. The C7—N1 bond length of 1.2836 (18)Å is comparable with C—N double bond [1.281 (2) Å] reported (Girgis, 2006). In the crystal structure, molecules are linked by intermolecular N—H···O hydrogen bonds to form centrosymmetric dimers.