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Infrared and $^1H$-NMR study of molecular conformation of some N,N'-arylalkylureas

Sudha, LV and Sathyanarayana, DN (1984) Infrared and $^1H$-NMR study of molecular conformation of some N,N'-arylalkylureas. In: Journal of Molecular Structure, 125 (1-2). pp. 89-96.

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Abstract

The 270 MHz $^1H$-NMR and IR spectra of several N,N'-arylalkylureas are analysed in terms of their conformational properties. For most systems, the -NHCONH- group adopts a less energetic trans—cis conformation which is stabilized by unsymmetric intramolecular hydrogen bonding of lower polarizability, in contrast to other N,N'-disubstituted ureas which are predominantly found in the trans—trans form. The influence of the N-substituent on hydrogen bonding and molecular conformation is emphasized.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science B.V.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 25 Mar 2008
Last Modified: 19 Sep 2010 04:43
URI: http://eprints.iisc.ernet.in/id/eprint/13480

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