# VIBRATIONAL PREDISSOCATION STUDIES OF $C_{5}(NH_{3})N^{+}$ CLUSTER IONS

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 Title: VIBRATIONAL PREDISSOCATION STUDIES OF $C_{5}(NH_{3})N^{+}$ CLUSTER IONS Creators: Draves, Jeffrey A.; Lisy, James M. Issue Date: 1990 Publisher: Ohio State University Abstract: The combination of a thermionic emitter and a cw nozzle in a molecular beam apparatus has made possible the production of large, solvated alkali ion clusters. We have produced clusters of the form $M(SOL)^{+}_{N}$ where M is Na, K, Rb, or Cs and SOL can be methanol, ammonia, ethanol, water, ethylene etc, in the size range of $N=1$ to 50. Recently we have produced clusters of $C_{5}(NH_{3})_{N}{^{+}}$ for $N=1$ to 45. Vibrational predissociation spectra of mass selected $C_{8}(NH_{3})_{N}{^{+}}$ have been observed in the $9.6 \mu$ and $10.6\mu$ regions for the clusters of size $N > 9$. The Evaporative Ensemble/RRK analysis of these clusters indicates that the initial energy content for clusters of size $N<10$ is insufficient to cause dissociation on the time scale of our experiment. The dissociation dynamics and solvent shell structures will be discussed. Description: Author Institution: School of Chemical Sciences, University of Illinois at Urbana URI: http://hdl.handle.net/1811/18092 Other Identifiers: 1990-ME-3