학술논문
Infrared spectra and structures of the valyl-alanine and alanyl-valine zwitterions isolated in a KRr matrix
Document Type
Academic Journal
Source
Journal of Physical Chemistry A. August 12, 2004, Vol. 108 Issue 32, p6136
Subject
Language
English
ISSN
1089-5639
Abstract
An infrared sampling technique is used for measuring the infrared absorption spectra of the depeptide zwitterions L-valyl, L-alanine, L-valine. The side chains are not characterized by any short nonbonded distances, and accordingly for the side chains, significant nonbonded intramolecular interactions and therefore reduced vibrational frequencies, can be excluded.