# Hydrogen bonding in excited states of pyridine and pyrazine

Rao, Rama CV and Jacob, Chacko and Chandra, AK (1983) Hydrogen bonding in excited states of pyridine and pyrazine. In: Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical & Analytical, 22A (3). pp. 183-185.

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## Abstract

H-bonding in the excited n-$\pi^*$ and $\pi-\pi^*$ states of pyridine and pyrazine is examined by calculating the electric field at different points in space from the CNDO charges. The H bond which is formed in the ground state is broken upon excitation to the n-$\pi^*$ state in pyridine; weak H-bonding is possible in the n-$\pi^*$ state of pyrazine.

Item Type: Journal Article Copyright of this article belongs to National Institute of Science Communication and Information Resources. Division of Chemical Sciences > Inorganic & Physical Chemistry 24 Jun 2008 27 Aug 2008 13:28 http://eprints.iisc.ernet.in/id/eprint/14404