dc.creator Appadoo, Dominique R. T. en_US dc.creator Shayesteh, A. en_US dc.creator Bernath, P. F. en_US dc.creator Le Roy, Robert J. en_US dc.date.accessioned 2006-06-15T20:50:40Z dc.date.available 2006-06-15T20:50:40Z dc.date.issued 2004 en_US dc.identifier 2004-RE-10 en_US dc.identifier.uri http://hdl.handle.net/1811/21294 dc.description $^{a}$R.C.M. Learner, Proc. Roy. Soc. (London) A 269, 327 (1962). $^{b}$H.A. Witek, A. Viel and P.-O. Widmark, J. Chem. Phys. 116. 8396 (2002). en_US dc.description Author Institution: Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, University of Waterloo en_US dc.description.abstract Some years ago $Learner^{a}$ recorded electronic spectra involving the $A ^{1}\Sigma^{+}$ state of AgH, and found anomalous behaviour of the vibrational level spacings and $B_{v}$ values which he attributed to the potential energy curve for this state having a shelf''. More recently, Witek $et al.^{b}$ reported ab initio results which supported Learner's assertion that the potential energy function for this state had an unusual shape, but found that rather than have a shelf, there was an abrupt stiffening of the bond for vibrational levels above $v \approx 4$. In order to clarify this situation, we have combined new and previously recorded visible $A - X$ spectra and high quality microwave and infrared data for $^{107/109} AgH$ and $^{107/109}AgD$ in a combined-isotopomer direct-potential-fit analysis which determines analytic potential energy and Born-Oppenheimer breakdown functions for this state. A similar approach is used to study the analogous $A ^{1}\Sigma^{+}$ state of $^{63/65}CuH$ and $^{63/65}CuD$. en_US dc.format.extent 305124 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title POTENTIAL ENERGY CURVES OF THE $A ^{1}\Sigma$ STATES OF AgH AND CuH en_US dc.type article en_US
﻿