Accessing Three Oxidation States of Cobalt in M6L3 Nanoprisms with Cobalt-Porphyrin Walls

Nanocages with porphyrin walls are common, but studies of such structures hosting redox-active metals are rare. Pt-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.