Decay pathway determination of even-size dicationic silver clusters

Ag₁₆/²⁺ and Ag₁₈/²⁺ -revisited by pre-precursor selection and sequential decay

authored by

S. Krückeberg, L. Schweikhard, G. Dietrich, K. Lützenkirchen, Clemens Walther, J. Ziegler

Abstract

It is demonstrated how by selection of pre-precursor cluster ions Ag(2n-1)/²⁺ and collision-induced dissociation an ensemble of Ag(2n)/²⁺ can be produced, which is not contaminated by Ag(n)/⁺ clusters of the same size-to-charge state ratio, n/z. By use of this technique, Ag₁₆/²⁺ and Ag₁₈/²⁺ precursor ensembles have been prepared for further investigations. They are observed to decay by neutral monomer evaporation, Ag(2n)/²⁺→ Ag(2n-1)/²⁺ + Ag, and trimer fission, Ag(2n)/²⁺ → Ag(2n-3)/⁺ + Ag₃/⁺, and show no sign of symmetric fission. (C) 2000 Elsevier Science B.V.

External Organisation(s)

Johannes Gutenberg University Mainz

Type

Article

Journal

Chemical Physics

Volume

262

Pages

105-113

No. of pages

9

ISSN

0301-0104

Publication date

01.12.2000

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

General Physics and Astronomy, Physical and Theoretical Chemistry

Electronic version(s)

https://doi.org/10.1016/S0301-0104(00)00213-5 (Access: Unknown)