EXTENSIONS OF THE RKR METHOD

$^{1}$W. L. Miller. Univ. of Calit. Lawrence Rad. Lab. Report 20374, Nov. 1970, submitted to J. Chem. Phys. $^{2}$D. M. Fakin and S. P. Davis. J. Mol. Spectry. 35, 27 (1970) and references therein.""Author Institution: Department of Chemisty, University of IowaThe Rydberg-Klein-Rces (RKR) method for obtaining diatomic potential energy curves can be extended by simultaneously using data for various isotopes, by solving at various rotational quantum numbers, by imposing the long-range form on the potential, and by using in addition the related equations recently derived by $Miller.^{1}$ The isotopic mercury hydrides are a particularly interesting case for such extensions as all vibrational-rotational levels (up to rotational predissociation in each vibrational level) of the hydride and deuteride have been observed, as well as many of the tritide $levels.^{2}$ Other molecules, such as $H_{2}$, $O_{2}$, and $Mg_{2}$ will be briefly discussed as time permits