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An <jats:italic>o<\/jats:italic>\u2010nitrobenzyl\u2010caged competitor is photolyzed to generate a competitive guest that can displace cargo from the host macrocycle solely based on considerations of chemical equilibrium. With this method the release of terpene guests from inclusion complexes with cucurbit[7]uril was demonstrated. The binding of the herein investigated terpenes, all being lead fragrant components in essential oils, has been characterized for the first time. They feature binding constants of up to 10<jats:sup>8<\/jats:sup>\u2005L\u2009mol<jats:sup>\u22121<\/jats:sup> and a high differential binding selectivity (spanning four orders of magnitude for the binding constants for the particular set of terpenes). 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