Studies in Nonlinear Optical Materials: Structure of 3-Menthyl 2-[Bis(dimethylarnino)methylene]-3-oxobutyrate Hemihydrate

Kanagapushpam, D and Padmanabhan, K and Venkatesan, K (1987) Studies in Nonlinear Optical Materials: Structure of 3-Menthyl 2-[Bis(dimethylarnino)methylene]-3-oxobutyrate Hemihydrate. In: Acta Crystallographica Section C Crystal Structure Communications, 43 (9). pp. 1717-1721.

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Abstract

C 19Ha4N203.~xH 2 O, Mr= 347.5, monoclinic, C2, a = 15.473 (3), b = 6.963 (2), c = 20.708 (4) ]1, //=108.2(2) ° , V=2119(2)A 3, Z=4, Ox= 1.089 Mg m -3, ,~(Cu Ktx) = 1.5418 ]1, p = 0.523 mm -~, F(000) = 760.0, T= 293 K, R = 0.068 for 1967 unique reflections. The C=C bond length is 1-447 (6)]1, significantly longer than in ethylene, 1.336 (2)]1. 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:	Journal Article
Publication:	Acta Crystallographica Section C Crystal Structure Communications
Publisher:	International Union of Crystallography
Additional Information:	Copy right of this article belongs to International Union of Crystallography.
Department/Centre:	Division of Chemical Sciences > Organic Chemistry
Date Deposited:	12 Jan 2010 10:05
Last Modified:	19 Sep 2010 05:33
URI:	http://eprints.iisc.ac.in/id/eprint/20501

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