Solid state reactions of metals complexes of substituted cyclopentanones: An infrared spectroscopic study

Abstract

The solid state reactivity of a family of substituted benzylidene cyclopentanones has been studied extensively. The effect of complexation to metal ions onto their crystal structure and solid state reactivity has ben studied. Complexation was possible because of the incorporation either of pairs of ortho hydroxyl substituents on the phenyl rings, or of a malonic group at the 3-position of the five member ring. Coordination polymers with extended conjugation systems have been prepared in some cases, and the effect of varying the metal: ligand ration on photoreactivity was studied. Types of light-induced solid state reactivity which have been encountered, are [2+2] topochemical cycloaddition, decarboxylation and dehydration, whilst some compounds were found to be photostable. The main technique used in these investigations was FTIR. © 1989.