Krishnan, RS and Krishnanand, KN (1964) Influence of the hydrogen bond on the N-H stretching frequencies in amino-acids. In: Proceedings of the Indian Academy of Sciences - Section A, 60 (1). pp. 11-19.
NH.pdf - Published Version
Restricted to Registered users only
Download (388Kb) | Request a copy
The spectra of glycine, its addition compounds and other amino-acids exhibit Raman lines in the region from 3250 cm.−1 to 2500 cm.−1 It has been shown that these lines cannot be assigned to N-H...O stretching vibrations, where the N atom has the covalency of three, but to N+-H...O stretching vibration where the N atom has the covalency of four. Using the data obtained with triglycine sulphate which has the largest number of N+-H...O bonds and whose H bond lengths are known, the correlation curve giving the relation between the N+-H...O stretching frequencies and the corresponding H bond lengths has been drawn. Using this correlation curve, the N+-H...O stretching frequencies appearing inα-glycine,γ-glycine, diglycine hydrochloride, diglycine hydrobromide,l-asparagine monohydrate anddl-alanine have been satisfactorily accounted for on the basis of the known hydrogen bond lengths in these substances.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Indian Academy of Sciences.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||22 Jun 2010 08:56|
|Last Modified:||19 Sep 2010 06:07|
Actions (login required)