Atmosphärencluster

Atmosphärencluster

Inorganic acids (HA), their conjugate base anions (A‾) and water are abundant species in the atmosphere, where they play a critical role in aerosol formation. In the process of ion-induced nucleation negative ions serve as more effective nucleation sites than positive ions. Among the most abundant anions in the troposphere and stratosphere are nitrate and bisulfate, as well as their microsolvated clusters. In order to understand the early steps of aerosol nucleation and gain insight in the microscopic structure of the bulk, we use infrared single and multiple photon dissociation (IRMPD) spectroscopy in combination with electronic structure calculations as a structural probe for size-selected (A‾)(AH)m(A’H)m(H2O)n(H2)z clusters.

aktuelle Publikationen

  • Infrared Photodissociation Spectroscopy of Microhydrated Nitrate-Nitric Acid Clusters NO3¯ (HNO3)m(H2O)n
    N. Heine, T. Yacovitch, F. Schubert, C. Brieger, D.M. Neumark, K.R. Asmis
    J. Phys. Chem. A 118 7613-22 (2014). DOI:10.1021/jp412222q

  • Vibrational Spectroscopy of Bisulfate/Sulfuric Acid/Water Clusters: Structure, Stability and IRMPD Intensities
    T.I. Yacovitch, N. Heine, C. Brieger, T. Wende, C. Hock, D.M. Neumark, K.R. Asmis
    J. Phys. Chem. A 117 7081−90 (2013). DOI:10.1021/jp400154v

  • Vibrational Spectroscopy of Atmospherically Relevant Acid Cluster Anions – Bisulfate Versus Nitrate Core Structures
    T.I. Yacovitch, N. Heine, C. Brieger, T. Wende, C. Hock, D.M. Neumark, K.R. Asmis
    J. Chem. Phys. 136 241102 1-4 (2012). DOI:10.1063/1.4732148

Übersichtsartikel

  • Cryogenic Ion Trap Vibrational Spectroscopy of Hydrogen-Bonded Clusters Relevant to Atmospheric Chemistry
    N. Heine and K.R. Asmis
    Int. Rev. Phys. Chem.
     34 1-34 (2015) DOI: 10.1080/0144235X.2014.979659
    Corrigendium:  35 507 (2016) DOI: 10.1080/0144235X.2016.1203533

  • Gas Phase Vibrational Spectroscopy of Strong Hydrogen Bonds
    K.R. Asmis, D.M. Neumark, J.M. Bowman
    pp. 53-78, Chapter 3 in Physical and Chemical Aspects I-III edited by J.T. Hynes, J.P. Klinman, H.-H. Limbach, R.L. Schowen; Vol. 1 of Hydrogen Transfer Reactions, edited by J.T. Hynes, J.P. Klinman, H.-H. Limbach, R.L. Schowen (Wiley-VCH, Weinheim, Germany, 2007), ISBN 978-3-527-30777-7.
letzte Änderung: 23.05.2017

Artbeitskreis Asmis

Kontakt

Leiter des Arbeitskreises
Prof. Dr. Knut R. Asmis
Raum TA 436
Linnéstr. 3
D-04103 Leipzig

Telefon: 0341-97 36421
E-Mail

Sekretariat
Wilhelm-Ostwald-Institut
Frau Kerstin Schleinitz

Telefon: 0341 97-36500
Telefax: 0341 97-36399
E-Mail

Postanschrift
Universität Leipzig
Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie
Linnéstr. 2
D-04103 Leipzig