Complexation and Separation of Alkylaromatics with Copper(l) Trifluoromethanesulfonate

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Abstract
A novel mode of complexation of aromatics has been observed in the case of copper(I) triflate. Further, it has been found that in the solid the spatial demands of the inorganic matrix dictates a unique stability ordering of the alkylaromatics based on their shape more than on their p-basicity. This property can be the basis of an efficient means of separating isomers; for instance, in isolating p-xylene from the other eight-carbon arenes. Brief attention is focused upon the mechanism of the ligand exchange reaction via which the separating ability is manifested.

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