force constants

[topper #*at*# haydn.chm.uri.edu (Robert Q. Topper)]

 Thanks to everyone who wrote and asked for a preprint!
 I would like to say that the paper was done with several
 coauthors, and that the vast majority of the perturbation
 theory work was done by my coworker, Qi Zhang, with
 important contributions also made by Yi-Ping Liu, and
 all with the support, guidance, and expertise of Don Truhlar.
 The other thing I'd like to mention is that this preprint
 does NOT explicitly give transformations between normal
 and the usual "internal" coordinates; the only transformation
 which is explicitly given is between Cartesians and Jacobis
 (an internal coordinate system loved by us physical chemists,
 and developed many moons ago).
 However, it does point to references which would be helpful
 to someone trying to come to grips with coordinate transformations
 for the first time. Just a caveat so that no one's hopes are
 too high....  :-)
 Best to all, Robert
             ********************************
             *  Robert Q. Topper            *
             *  Department of Chemistry     *
             *  University of Rhode Island  *
             *  Kingston, RI 02881          *
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