Electron capture induced dissociation of nucleotide anions in water nanodroplets

B Liu; N Haag; H Johansson; H T Schmidt; H Cederquist; S Brondsted Nielsen; H Zettergren; P Hvelplund; B Manil; B A Huber

doi:10.1063/1.2839597

Electron capture induced dissociation of nucleotide anions in water nanodroplets

J Chem Phys. 2008 Feb 21;128(7):075102. doi: 10.1063/1.2839597.

Authors

B Liu¹, N Haag, H Johansson, H T Schmidt, H Cederquist, S Brondsted Nielsen, H Zettergren, P Hvelplund, B Manil, B A Huber

Affiliation

¹ Institute of Photo-Biophysics, School of Physics and Electronics, Henan University, Kaifeng, PR China.

PMID: 18298174
DOI: 10.1063/1.2839597

Abstract

We have studied the outcome of collisions between the hydrated nucleotide anion adenosine 5'-monophosphate (AMP) and sodium. Electron capture leads to hydrogen loss as well as water evaporation regardless of the initial number m of water molecules attached to the parent ion (m< or =16). The yield of dianions with microsecond lifetimes increases strongly with m, which is explained from dielectric screening of the two charges by the water nanodroplet. For comparison, collision induced dissociation results in water losses with no or very little damage of the AMP molecule itself.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adenosine Monophosphate / chemistry*
Adenosine Monophosphate / radiation effects*
Anions / radiation effects
Computer Simulation
Electrons
Models, Chemical*
Models, Molecular*
Nanostructures / chemistry*
Nanostructures / radiation effects
Water / chemistry*

Substances

Anions
Water
Adenosine Monophosphate