Cooperative Institute for Research in Environmental Sciences

Analytical Chemistry Seminar: Demetrios Pagonis

Analytical Chemistry Seminar: Demetrios Pagonis

Analytical & Environmental Chemistry Division and Atmospheric Chemistry Program Seminar

Jointly sponsored by the Department of Chemistry and Biochemistry, CIRES, and the Environmental Program

Chemistry of Multifunctional Hydroperoxides in Secondary Organic Aerosol

by Demetrios Pagonis - Department of Chemistry and Biochemistry, University of Colorado Boulder

Multifunctional hydroperoxides have been identified as a product of autoxidation reactions and have been proposed as structures for extremely low volatility compounds (ELVOCs) observed in secondary organic aerosol. The chemistry of these hydroperoxides is complex and challenging to study, as many conventional analytical techniques disturb the peroxide functionality and cause additional chemistry to occur. In this work we are able to produce multifunctional hydroperoxides in environmental chamber reactions as well as in solution, allowing us to investigate their chemistry under a variety of conditions. Observed intramolecular reactions, reactions with water, acid-catalyzed acetal formation and acid-catalyzed peroxyacetal formation are all discussed.

location

CIRES Fellows Room, Ekeley S274