Accessing three oxidation states of cobalt in M6L3 nanoprisms with cobalt–porphyrin walls

Abstract

Nanocages with porphyrin walls are common, but studies of such structures hosting redox-active metals are rare. Pt²⁺-linked M₆L₃ nanoprisms with cobalt–porphyrin walls were prepared and their redox properties were evaluated electrochemically and chemically, leading to the first time that cobalt–porphyrin nanocages have been characterized in Co^I, Co^II, and Co^III states.