Ultrafast N-H vibrational dynamics of hydrogen-bonded cyclic amide reveal by 2DIR spectroscopy

Maiti, Kiran Sankar (2018): Ultrafast N-H vibrational dynamics of hydrogen-bonded cyclic amide reveal by 2DIR spectroscopy. In: Chemical Physics, Bd. 515: S. 509-512

Abstract

Hydrogen-bonding strongly influences the vibrational dynamics of the N-H stretch vibration, hence the molecular structure and dynamics. Therefore the N-H stretch vibration is an important probe to study hydrogen-bond dynamics as well as the molecular structure and dynamics, specially for the biological molecule. In this article, the dynamics and couplings of N-H stretching vibrations of biological molecules are investigated with linear infrared spectroscopy and ultrafast two-dimensional infrared (2DIR) spectroscopy with a model molecule 2-Pyrrolidinone. In solution, 2-Pyrrolidinone makes three different kinds of intermolecular hydrogen bonding, whose spectra have been collected with FTIR as well as with 2DIR spectroscopy and discussed. Inter-molecular hydrogen bond making and breaking between N-H and C=O vibrational bands are discussed also.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0301-0104
• Sprache: Englisch