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Heterobismetal Complexes of [26]Hexaphyrin(

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posted on 2008-05-19, 00:00 authored by Shigeki Mori, Atsuhiro Osuka
AuIIICuIII and AuIIIRhI heterobismetal complexes of meso-aryl-substituted [26]hexaphyrin were rationally prepared from a monometal AuIII complex. The AuIIICuIII complex is an aromatic molecule with a rectangular shape, while AuIIIRhI complexes are out-of-plane macrocycles, being either aromatic or antiaromatic depending upon the number of conjugated π electrons. The 26π AuIIIRhI complex was converted into an aromatic and planar 26π AuIIIRhIII complex via double C−H bond activation upon refluxing in pyridine.