Hamburg 2009 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 14: Cluster

MO 14.2: Vortrag

Mittwoch, 4. März 2009, 14:30–14:45, VMP 6 HS-F

Dissociation Dynamics of Molecular Diamonds — •Sebastian Schorb, Rainer Unterumsberger, Matthias Hoener, Thomas Möller, and Christoph Bostedt — Institut für Optik und Atomare Physik, Technische Universität Berlin

Spectroscopy with COLTRIMS (cold target recoil ion momentum spectroscopy) allows a detailed investigation of the fragmentation of molecules and clusters. The vectorial momenta of all ionic fragments and electrons in the full 4 π solid angle could be recorded. Using this technique, we performed detailed fragmentation studies of the doubly charged admantane excited with soft x-ray radiation. Adamantane (C₁₀H₁₆) is the smallest member of a class of perfect mass and structure selected diamond-like carbon clusters, called molecular diamonds or nanodiamonds. A detailed analysis of the momentum balance shows a sequential fragmentation of the cluster into neutral and charged fragments and isomerisation effects during this process.