Zinc oxide cluster cations have been analyzed by ion mobility spectrometry using a home-made drift cell combined with a time-of-flight reflectron mass spectrometer. Structural changes from cyclic to tube like structures were observed around n = 8, corresponding to predictions by theoretical calculations. The structures were assigned by comparing with the arrival time simulation using MOBCAL software. We have also observed ion-injection energy dependence of the structures of (ZnO)n+. The smallest tube structure of (ZnO)6+ has predominantly been observed at an injection energy of 200 eV. The extraordinary stability of the compact structure at this size has been observed for the first time.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry