2005•Journal of Porphyrins and PhthalocyaninesRequires access
An intermolecular quinone shuttle based on porphyrin-quinone recognition
Kiyoshi Tanaka, Kazuto Taguchi, Satoru Iwata, Hirohito Obara
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Abstract
The large difference in the binding affinity of tetramethoxy-p-benzoquinone between 5,15-cis-bis(ureidophenyl)porphyrin and its zinc-porphyrin analogue enables construction of a reversible system in which tetramethoxy-p-benzoquinone moves between 5,15-cis-bis(ureidophenyl)porphyrin and the zinc-porphyrin as a quinone shuttle and a nitrate ion works as a chemical switch.