Effects of water vapor and other trace gases in atmospheric reactions

Main Research line: Atmospheric Chemistry
Main Researcher: Josep M. Anglada

Water vapor is the third most abundant species in the atmosphere, behind N2 and O2. It is a greenhouse gas but it has also an important role in the chemistry of the troposphere. Its chemical structure favors the formation of hydrogen bonds and therefore the production of aggregates, but it can also participate in chemical reactions having a catalytic or anti-catalytic effect. There are other trace gases, like formic acid or sulfuric acid which also have a great ability to form hydrogen bonds and can participate in atmospheric reactions. Understanding the role these species in our atmosphere is critical to understanding their composition and chemistry.

What we do
By studying how these species form complexes between themselves or with other atmospheric molecules we investigate the role of these and other species in atmospheric processes.

The Figure shows how sulfuric acid and its complexes with water catalyze its own formation in the atmosphere. (J. Am. Chem. Soc., 2012, 134, 20632)

The Figure shows how sulfuric acid and its complexes with water catalyze its own formation in the atmosphere. (J. Am. Chem. Soc., 2012, 134, 20632)

Related publications

Miquel Torrent-Sucarrat, Josep S. Francisco, and Josep M. Anglada, Sulfuric Acid as Autocatalyst in the Formation of Sulfuric Acid, J. Am. Chem Soc, 2012, 134, 20632–20644

R. J. Buszek, J. S. Francisco and Josep M. Anglada, Water Effects on Atmospheric Reactions, Int. Rev. Phys. Chem, 2011, 30, 335-369

Solvejg Jørgensen, Camilla Jensen, Henrik G. Kjaergaard and Josep M. Anglada, The Gas-Phase Reaction of Methane Sulfonic Acid with Hydroxyl Radical without and with Water Vapor, Phys Chem Chem. Phys, 2013, 15, 5140

Robert J. Buszek, Miquel Torrent-Sucarrat, Josep M. Anglada, and Joseph S. Francisco, The Effects of a Single Water molecule on the OH + H2O2 reaction, J. Phys. Chem. A, 2012, 116, 5821- 5829

Javier Gonzalez, Marc Caballero, Antoni Aguilar-Mogas, Miquel Torrent-Sucarrat, Ramon Crehue, Albert Solé, Xavier Giménez, Santiago Olivella, Josep M. Bofill and Josep M. Anglada, The reaction between HO and (H2O)n, (n=1,3) clusters. Reaction mechanisms and tunneling effects, Theor. Chem. Acc, 2011, 128, 579

, The Reactions of SO3 with HO2 Radical and H2O···HO2 Radical Complex. Theoretical Study on the Atmospheric Formation of HSO5 and H2SO4, Phys. Chem. Chem. Phys, 2010, 12, 2116

Josep M. Anglada and Javier Gonzalez, Different Catalytic Effects of a Single Water Molecule. The Gas-Phase Reaction of Formic Acid with Hydroxyl Radical in Water Vapor, ChemPhysChem, 2009, 10, 3034

Do you have any questions or comments? Feel free to contact us, we’ll be happy to hear from you.