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.
|Number of pages||3|
|Journal||The Journal of Chemical Physics|
|Publication status||Published - 1993 Dec 1|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics