The term “polytopal rearrangement” describes any shape changing process operating on a
coordination “polyhedron”─ the solid figure defined by the positions of the ligand atoms …

In this chapter we consider the theory of the symmetry properties of nonrigid molecules
(NRMs). This problem has been widely discussed in recent years, with the interpretation and …

Publisher Summary This chapter provides a general description of Group Theory for Non-
rigid Molecules, and reviews the Longuet–Higgins and Altmann's points of view. A new …

Data on the structures of xenon and krypton compounds in various physical states are
analyzed and generalized. The structures of simple, coordination, polymeric and clathrate …

The uncertainty on XeF6 geometry persisted for over five decades, with elusive multiple C3v
equivalent minima as an outcome of the Jahn–Teller effect. Herein we theoretically prove …

Abstract The Desargues–Levi graph represents important chemical transformations:(1)
isomerization routes for some carbonium ion rearrangements,(2) isomerization of trigonal …

56 GA NATANSON appear, but then the accurate symmetry group is necessarily a subgroup
of the approximate one. In particular, there must be a way to cast an approximate …

Ab initio calculations using the double-zeta Huzinaga—Dunning—Veillard basis have been
performed for the chlorine fluorides CIF itk (k= 1–7). A detailed discussion of the geometrical …

An approach based on the topological distance matrix is used for algebraic characterization
of bridged polycyclic compounds. The classical bridged structures which have external …

Raman spectra of XeF4 and XeF6 in the nonaqueous HF solutions at various concentrations
and vibrational spectra of the [XeF5]+ cation in the solid state and in the HF solutions over a …