Photoelectron spectroscopy of cluster anions of naphthalene and related aromatic hydrocarbons

The Journal of Chemical Physics
Naoto AndoAtsushi Nakajima

Abstract

The electronic structures and structural morphologies of naphthalene cluster anions, (naphthalene)(n)(-) (n=3-150), and its related aromatic cluster anions, (acenaphthene)(n)(-) (n=4-100) and (azulene)(n)(-) (n=1-100), are studied using anion photoelectron spectroscopy. For (naphthalene)(n) (-) clusters, two isomers coexist over a wide size range: isomers I and II-1 (28 < or = n < or =60) or isomers I and II-2 (n > or = ~60). Their contributions to the photoelectron spectra can be separated using an anion beam hole-burning technique. In contrast, such an isomer coexistence is not observed for (acenaphthene)(n) (-) and (azulene)(n) (-) clusters, where isomer I is exclusively formed throughout the whole size range. The vertical detachment energies (VDEs) of isomer I (7 < or = n < or = 100) in all the anionic clusters depend linearly on n(-13) and their size-dependent energetics are quite similar to one another. On the other hand, the VDEs of isomers II-1 and II-2 produced in (naphthalene)(n)(-) clusters with n > or = approximately 30 remain constant at 0.84 and 0.99 eV, respectively, 0.4-0.6 eV lower than those of isomer I. Based upon the ion source condition dependence and the hole-burning photoelectron spectra experiments for e...Continue Reading

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Citations

Jun 30, 2012·Chemical Reviews·Ryan M Young, Daniel M Neumark
Apr 15, 2014·Journal of the American Chemical Society·Sean M RynoJean-Luc Brédas
May 2, 2009·The Review of Scientific Instruments·Dominik PentlehnerKfir Luria
Nov 23, 2017·The Journal of Chemical Physics·Christopher SuttonJean-Luc Brédas
Feb 2, 2021·Physical Chemistry Chemical Physics : PCCP·Michal FárníkAndriy Pysanenko
Mar 11, 2020·The Journal of Physical Chemistry Letters·Jakub MedJ Kočišek

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