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dc.creatorRelph, Rachael A.en_US
dc.creatorBopp, Joseph C.en_US
dc.creatorRoscioli, Joseph R.en_US
dc.creatorJohnson, Mark A.en_US
dc.date.accessioned2008-07-15T13:43:48Z
dc.date.available2008-07-15T13:43:48Z
dc.date.issued2008en_US
dc.identifier2008-MG-06en_US
dc.identifier.urihttp://hdl.handle.net/1811/33422
dc.descriptionAuthor Institution: Sterling Chemistry Laboratory, Yale University, PO Box 208107, New Haven, CT 06520en_US
dc.description.abstractInfrared predissociation spectroscopic studies of systematically solvated acetylene clusters, (C$_2$H$_2$)$_{n}^{+}$, $n = 1-4$, reveal the structural evolution of these cations with increasing cluster size. The argon predissociation spectrum of the acetylene dimer coupled with harmonic frequency calculations suggests the dominate species adopts a cyclobutadiene-like geometry. The argon solvated trimer, (C$_6$H$_6$)$^+$ $\cdot$ Ar, predominantly loses (C$_2$H$_2$)$^+$ $\cdot$ Ar, suggesting that the trimer is composed of a covalently bonded ``dimer core'' which exhibits a spectrum different than cyclobutadiene, and is solvated by a weakly bound acetylene. The same spectral features are retained in the tetramer suggesting that the dimer core survives the solvation of additional acetylene molecules. The minor loss channel of (C$_6$H$_6$)$^+$ $\cdot$ Ar, loss of a single Ar, shows multiple features believed to be from a number of covalently bonded (C$_6$H$_6$)$^+$ species.en_US
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleINFRARED PREDISSOCIATION SPECTROSCOPY OF CATIONIC ACETYLENE CLUSTERS, (C$_2$H$_2$)$_{n}^{+}$, $n = 1-4$en_US
dc.typeArticleen_US


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