Intracluster rearrangement of protonated nitric acid: Infrared spectroscopic studies of H+(HNO3)(H2O) n

Yibin Cao, Jong-Ho Choi, Bernd Michael Haas, Matthew S. Johnson, Mitchio Okumura

Research output: Contribution to journalArticle

32 Citations (Scopus)


Infrared spectra of clusters of protonated nitric acid and water exhibit a marked change with cluster size, indicating that an intracluster reaction occurs with sufficient solvation. In small clusters, H2O binds to a nitronium ion core, but at a critical cluster size the NO2 - reacts. A lower bound of 174 kcal/mol is found for the proton affinity of HNO3.

Original languageEnglish
Pages (from-to)9307-9309
Number of pages3
JournalThe Journal of Chemical Physics
Issue number11
Publication statusPublished - 1993 Dec 1
Externally publishedYes


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this