Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1250293 | Vibrational Spectroscopy | 2011 | 6 Pages |
Abstract
Matrix isolation–FTIR spectra of 2-pyrrolidinone monomer and its two hydrogen bonded dimers are recorded in N2 matrix at 8 K temperature and in CCl4 solution at variable temperature within the range 30–45 °C. The transient singly hydrogen bonded dimer (SHBD) is identified in the cold N2 by comparing the matrix spectrum with that in CCl4 solution. The spectral shifts of both amide-I and amide-A bands indicate cooperative strengthening of hydrogen bonds in doubly hydrogen bonded dimer (DHBD). Density functional theory at B3PW91/6-311++G** level of calculation is found to be in good accord to the observed spectral features.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Prasenjit Pandey, Amit K. Samanta, Biman Bandyopadhyay, Tapas Chakraborty,