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% Here we intend to show how to submit abstract as one file when
% your abstract has picture in an Encapdulated PostScript (EPS) format
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\documentclass{article}
\usepackage{mss,epsfig,graphics,wrapfig}
\title{VIBRATIONAL SPECTRA OF THE H$_5$O$_2^+$ COMPLEX FROM THEORETICAL CALCULATIONS}
\author{\underline{LARS OJAMAE}, ISAIAH SHAVITT and SHERWIN SINGER}
\address{Department of Chemistry, The Ohio State University, Co
lumbus, OH 43210 (email to L.O.: lars@sodium.mps.ohio-state.edu)}
\begin{document}
\maketitle
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\epsfig{file=H5O2+.eps}
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The H$_5$O$_2^+$ ion is abundant in the
atmosphere, and in both the gaseous and condensed phases it plays an
important role in proton-tranfer reactions. The very strong H-bond
is believed to cause the large absorption observed in acid
solutions.
In this talk we present theoretical investigations of the vibrational
spectrum of this ion. We have calculated a potential surface for all
of its 15 degrees of freedom by pointwise {\em ab initio} MP2 computations
using a large basis set. Analytical expressions of various forms have
been fitted to these points, and anharmonic vibrational frequencies
have been calculated for parts of this surface using collocation
methods. In particular, we suggest where the peak for the
hydrogen-bonded OH stretching vibration can be found.
\end{document}