Kanagapushpam, D. ; Padmanabhan, K. ; Venkatesan, K. (1987) Studies in nonlinear optical materials: structure of 3-menthyl 2-[bis(dimethylamino)methylene]-3-oxobutyrate hemihydrate Acta Crystallographica Section C, 43 (9). pp. 1717-1721. ISSN 0108-2701
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Official URL: http://scripts.iucr.org/cgi-bin/paper?S01082701870...
Related URL: http://dx.doi.org/10.1107/S0108270187090425
Abstract
C19H34N203.½ H2O, Mr=347.5, monoclinic, C2, a=15.473 (3), b=6.963 (2), c=20.708 (4) Å, β =108.2(2)°, V=2119(2) Å3, Z=4, Dx=1.089 Mg m-3, λ (Cu Kα)=1.5418 Å, μ=0.523 mm-1, F(000)=760.0, T=293 K, R = 0.068 for 1967 unique reflections. The C=C bond length is 1-447 (6) Å, significantly longer than in ethylene, 1.336 (2) Å. The crystal structure is stabilized by O-H…O hydrogen bonding. Explanation for the observed low second-harmonic-generation efficiency (0.5 times that of urea) is provided.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to International Union of Crystallography. |
| ID Code: | 66662 |
| Deposited On: | 27 Oct 2011 04:12 |
| Last Modified: | 27 Oct 2011 04:12 |
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