Photoelectron spectroscopy of molecular clusters

Xu Zhang; Jonathan Pitts; Chaowen Zheng; Joseph L. Knee

doi:10.1117/12.220873

18 September 1995 Photoelectron spectroscopy of molecular clusters

Xu Zhang, Jonathan Pitts, Chaowen Zheng, Joseph L. Knee

Proceedings Volume 2548, Laser Techniques for State-Selected and State-to-State Chemistry III; (1995) https://doi.org/10.1117/12.220873
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

High resolution photoelectron spectroscopy is applied to the study of molecular clusters. The primary species studied are fluorene-Ar_n complexes. Spectroscopy of the neutral S₁ state has been performed on clusters as large as n equals 30. In order to study the photoelectron spectra of the clusters size selectively mass analyzed threshold ionization (MATI) is used which is a mass resolved version of the ZEKE technique. MATI spectroscopy has been applied to clusters up to n equals 5. The spectral shifts in the S₁ origin and ion threshold are used as a measure of the relative stability of the different clusters. Using previous experimental and theoretical work on related clusters the structures of the clusters are inferred from the observed spectral shifts. In some cases multiple conformations of a particular cluster size are identified.

Citation Download Citation

Xu Zhang, Jonathan Pitts, Chaowen Zheng, and Joseph L. Knee "Photoelectron spectroscopy of molecular clusters", Proc. SPIE 2548, Laser Techniques for State-Selected and State-to-State Chemistry III, (18 September 1995); https://doi.org/10.1117/12.220873

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