Theoretical Studies on the Potential of Hypoiodous Acid to Self-Nucleate in Marine Regions

Abstract

The formation of new marine particles is closely correlated with the iodine-containing substances emitted by marine algae. Hypoiodous acid (HIO) is a common iodine oxoacid in marine regions. However, the potential of HIO to take part in the nucleation process and the relevant mechanism remain to be fully investigated. Herein, this study investigated the self-nucleation of HIO in marine regions and found that, although HIO can form (HIO)2-6 clusters via medium hydrogen bonds, the (HIO)2-6 clusters are inherently unstable. Therefore, the self-nucleation of HIO in marine regions is almost impossible. Moreover, compared with HIO molecules, HIO monomer is more inclined to bond with iodic acid (HIO3) molecules. This work may help to understand the new particle formation involving iodine oxoacids more comprehensively.