A single isomer rotary switch demonstrating anti-Kasha behaviour: Does acidity function matter?

Literature Information

Publication Date 2021-05-24
DOI 10.1039/D1CP01378E
Impact Factor 3.676
Authors

Ivan Angelov, Liudmil Antonov


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Abstract

A novel rotary switch, overcoming the disadvantages of hydrazone based switches with competitive proton acceptor sub-rotors, has been designed. The new compound contains a pyridyl ring and a COOH group as sub-rotors, which provides engagement of the pyridyl nitrogen atom and leads to the existence of a single isomer in the ground state. The availability of acidic functionality in the rotor creates conditions for excited state intramolecular proton transfer (ESIPT), which exhibits anti-Kasha behavior.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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