Time resolved photofragmentation of Au⁺₁₅ clusters

authored by

Clemens Walther, G. Dietrich, M. Lindinger, K. Lützenkirchen, L. Schweikhard, J. Ziegler

Abstract

Au⁺₁₅ ions were produced by laser vaporization and transferred into a Penning trap. They were illuminated by a 10 ns dye-laser pulse at photon energies covering the range from 2.7 to 4.4 eV. Besides the determination of fragmentation patterns and photoabsorption cross sections the monomer evaporation of the excited clusters was observed time resolved on a microsecond to millisecond timescale yielding a monomer separation energy of 1.95(5) eV. In addition, the dissociation energy for Au⁺₁₄ could be determined as 1.57(5) eV by time resolved investigation of the sequential decay Au⁺₁₅ → Au⁺₁₄ + Au → Au⁺₁₃ + 2 Au.

External Organisation(s)

Johannes Gutenberg University Mainz

Type

Article

Journal

Chemical Physics Letters

Volume

256

Pages

77-82

No. of pages

6

ISSN

0009-2614

Publication date

21.06.1996

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

General Physics and Astronomy, Physical and Theoretical Chemistry

Electronic version(s)

https://doi.org/10.1016/0009-2614(96)00417-4 (Access: Unknown)