Abstract
Abstract Octaethylporphyrin–dihexylbithiophene–dimethylaniline triads were synthesized. The triads showed color change from green to yellow upon addition of trifluoroacetic acid. VT-NMR and UV–vis measurements revealed acid- and heat-driven multistimuli-response behaviors. In comparison with pyridine-connected analogs, a porphyrin–bithiophene diad moiety connected with diacetylene linkage expands the difference in basicity between dimethylaniline and pyridine.
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