ON THE ISOSTRUCTURALISM OF ORGANIC-MOLECULES IN TERMS OF KITAIGORODSKYS EARLY PERCEPTIONS

A new classification of the isostructuralism of related organic crysta ls, developed recently by the authors, has been complemented with the observations and conclusions of A. I. Kitaigorodskii made in the fifti es. Selected examples, collected by the authors either from their own work or from the literature, help to elucidate those genuine questions which were raised by Kitaigorodskii, but remained partly unanswered d ue to the shortage in relevant and accurate structure determinations i n his time. The examples, in principle, justify Kitaigorodskii's early conclusions and predictions.