Cyano-bridged cobalt–phthalocyanine dimer: a trapped species by crystallization with a π radical cation

Abstract

Electrochemical oxidation of the solution containing benzo[c]phenothiazine (B[c]PT) and dicyanophthalocyaninatocobalt(iii) anion, [Co(Pc)(CN)₂ ]^– , gives crystalline solids containing cyano-bridged cobalt–phthalocyanine dimer units. The dimeric species which may exist in equilibrium with the monomer is selectively trapped by crystallization with the B[c]PT cation radical.

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