Influence of Ring Size on Properties and Reactivity of Cyclic Systems

Results obtained during 1960–1979 on the effect of the size of a saturated or partly hydrogenated carbo- or hetero-cycle on the physicochemical (spectral, polarographic, ionisation) and chemical properties of cyclic compounds are summarised. Attention is paid mainly to the usual (C₅–C₇) cyclic systems. Results are interpreted in terms of classical strain theory, the I-strain concept, and the Finnegan–Streitwieser rehybridisation model. A list of 173 references is included.