Efficient Identification for Alcohol Homologues and Hyperthermy Based on Coordination Polymer Multiple Structural Transformations

Recently,
coordination polymer materials are of high interest due
to the potential applications for chemical sensing and luminescent
materials. In this work, we designed a photofluorescence coordination
polymer material based on a donor–metal–acceptor structure.
The donor–metal–acceptor architecture showed unusual
multiple environmental responsiveness accompanied by a great change
of fluorescence behaviors. Generally, organic homologue molecules
are not easily distinguished by coordination polymer sensors because
they have similar molecular structures and interaction sites. However,
using the feature of multiple structural transformations, the accurate
identification for organic homologue molecules can be realized, especially
in a short time to quickly identify MeOH in other alcohol homologues
(even in mixed atmospheres with only 10% MeOH). The visualization
transformation of fluorescence can also be realized by single crystal
to single crystal thermal-induced coordination bond ON/OFF behavior.
The reversible structure conversion strategy provides new ideas for
the accurate identification of organic homolog molecules or external
environmental stimuli.