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.
Restricted to Registered users only
Download (401Kb) | Request a copy
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|
Actions (login required)