Collision induced dissociation of doubly charged stored metal cluster ionst$

verfasst von

L. Schweikhard, D. Dietrich, S. Krückeberg, K. Lützenkirchen, C. Walther, J. Ziegler

Abstract

Singly charged noble metal cluster ions from an external laser vaporization source are accumulated in a Penning trap. They are subjected to electron bombardment for further ionization. The doubly charged clusters are size selected and their low energy fragmentation pathways are studied by multiple-collision-induced dissociation. The reaction products are analysed by time-of-flight detection. In general, large clusters tend to evaporate neutral atoms while small clusters fission into two singly charged fragments, one of which is a trimer. The details, however, vary and depend on the specific elements and cluster sizes as exemplified by the fragmentation of doubly charged copper, silver, gold and platinum clusters of size around n = 16.

Externe Organisation(en)

Johannes Gutenberg-Universität Mainz

Typ

Artikel

Journal

Rapid Communications in Mass Spectrometry

Band

11

Seiten

1592-1595

Anzahl der Seiten

4

ISSN

0951-4198

Publikationsdatum

04.12.1997

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Analytische Chemie, Spektroskopie, Organische Chemie

Elektronische Version(en)

https://doi.org/10.1002/(sici)1097-0231(199709)11:14<1592::aid-rcm996>3.3.co;2-t (Zugang: Geschlossen)