ABSTRACT
Earlier reviews on the state of experiment and theory for the determination of molecular structure by means of rotational spectroscopy have been mentioned in the book Microwave Molecular Spectra [1], which offers a great deal of information on the traditional methods for the determination of the structure of molecules from their inertial moments. More recent and rather detailed reviews on the work done in this eld have been published in Advances in Molecular Structure Research by Rudolph [2] and by Demaison, Wlodarczak, and Rudolph [3]. The most recent report appears to be a contribution by Groner [4], who reviews the traditional methods as well as the still-developing modern efforts, about which the review is particularly detailed. This chapter is intended not only to present and explain as far as possible the more recent methods but also to direct the reader’s attention to the variety and diversity of ideas that have been brought to bear on this task even if their application has remained limited for different reasons.
