Sophisticated Construction of Electronically Labile Materials: A Neutral, Radical-Rich, Cobalt Valence Tautomeric Triangle

Herein,
we report the construction of a neutral, radical-rich,
cobalt valence tautomeric triangle, which consists of two types of
radical groups including tetrazine-based bridges and semiquinone anions
at high temperature and has traits of high intensity and density of
sensing sites. The mechanism of the Valence Tautomerism process within
the triangle has been illustrated as one electron transfer, preceding
a two electrons transfer along with the phenomenon of spin flipping.