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(i) Chemical structure of cavitand octa acid (OA). (ii) Simplified representation showing the four equivalent subunits of OA. (iii) Cartoon representation of OA cavity. (iv) to (vi) Cartoon representation of 2:1 host:guest complexes formed with OA and 4-methyl dibenzyl ketone, 4,4′-dimethylstilbene and 2:2 host:guest complex with adamantane.
