dc.creator Winnewisser, Brenda P. en_US dc.creator Winnewisser, Manfred en_US dc.creator Medvedev, Ivan R. en_US dc.creator De Lucia, Frank C. en_US dc.creator Koput, Jacek en_US dc.creator Ross, Stephen C. en_US dc.date.accessioned 2009-07-29T12:55:50Z dc.date.available 2009-07-29T12:55:50Z dc.date.issued 2009 en_US dc.identifier 2009-WF-07 en_US dc.identifier.uri http://hdl.handle.net/1811/38249 dc.description K. Yamada and M. Winnewisser \textit{Z.~Naturforsch. en_US dc.description Author Institution: Department of Physics, The Ohio State University; Columbus Ohio, 43210-1106; Department of Chemistry, Adam Mickiewicz University; 60-780 Poznan, Poland; Department of Physics and Centre for Laser, Atomic, and; Molecular Sciences, University of New Brunswick, P.O. Box 4400; Fredericton NB E3B 5A3, Canada en_US dc.description.abstract Monodromy in the bending potential function is mapped into the rotation-bending spectrum, as shown in the previous talk. The form this takes in NCNCS for the parameter corresponding to $D_{\rm J}$ in an asymmetric rotor will be demonstrated. Years ago, extremely large values of $D_{\rm JK}$ and $D_{\rm K}$, as well as higher order terms, were found for HNCO, HNCS, and most importantly, H$_2$O, and discussed as anomalous centrifugal distortion". At that time no one understood the physical origin of the phenomenon, although we knew it must have something to do with the bending mode. Today we can correlate it directly with monodromy in the bending potential function. The early definition of a quasilinearity parameter \underline{\textbf{31A}}\,\,(139-144), 1976.}, allowing us to classify molecules with a more or less large amplitude bending mode, limited the concept to those that were rather close to the linear limit, specifically with the ground state below or only just above the top of the barrier to linearity. Recent work has shown that a considerably larger group of molecules should actually be considered quasilinear. This talk will show why this is so, and conclude with the definition of a generalized quasilinearity parameter which can be used to implement such a classification. en_US dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title ANOMALOUS CENTRIFUGAL DISTORTION AND A GENERALIZED DEFINITION OF A QUASILINEAR MOLECULE en_US dc.type Article en_US
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