FOURIER TRANSFORM INFRARED SPECTRA OF $Ge_{n}$ CLUSTERS TRAPPED IN SOLID Ar

Abstract

$^{a}$G.R. Burton, C. Xu. C. Arnold, and D. Neumark, J. Chem. Phys. 104, 2757 (1996)Author Institution: Department of Physics and Astronomy, TCUThe structures and vibrational fundamentals of $Ge_{n}$ clusters trapped in solid Ar are under investigation using Fourier transform infrared spectroscopy. $Ge_{-n}$ anions (n = 2-15) were studied earlier by $Neumark et al.^{a}$, using anion photoelectron spectroscopy and zero electron kinetic energy spectroscopy. Tentative assignments were made for a fundamental vibration of each of $Ge_{3}$ and $Ge_{4}$, although vibrational structure was unresolved for larger clusters. We present vibrational spectra obtained for $Ge_{n}$ species produced by laser ablation of pure germanium followed by trapping in an Ar matrix and compare the experimental observations with the predictions of density functional theory calculations