Unconventional Method for Fabricating Valence Tautomeric Materials: Integrating Redox Center within a Metal–Organic Framework

Due
to the structural advantages displayed by Metal–Organic
Frameworks (MOFs), integrating Valence Tautomerism (VT) systems within
MOFs could be an effective strategy in order to break through the
constraints of the traditional ones. Herein, we report the first successful
integration of a VT system into a MOF termed VT-MOF-1. The structural characteristics of VT-MOF-1, such as
dinuclear cobalt-catechol clusters and solvent-accessible pores, are
both innovative and novel, potentially yielding new vitality within
VT field. In addition, VT-MOF-1 exhibits specific behaviors
responsive to temperature and different solvent molecules as n-butanol, tert-butanol, and isopropyl
alcohol. The entropy values and configurations of the solvent molecules
might be responsible for the tunable sensing behaviors.