We describe the synthesis and characterization of a bipyridinium derivative conjugated with two azobenzene groups (Azo 2 Bpy 2+). The design maintains the ability of the photoswitches to undergo E to Z isomerization upon irradiation to generate a mixture of EE, EZ and ZZ isomers. Moreover, Azo 2 Bpy 2+ is able to undergo self-Assembly with dibenzo[24]crown-8 ether to generate [3]-pseudorotaxanes, driven by the strong cooperative effects, for all its geometric isomers.
Credi, A., Groppi, J., Andreoni, L., Cafagno, D. (2025). An Azobenzene-Bipyridinium Derivative as a Component in the Construction of Photoresponsive Pseudorotaxanes. SYNLETT, 36(11), 1574-1578 [10.1055/s-0043-1775482].
An Azobenzene-Bipyridinium Derivative as a Component in the Construction of Photoresponsive Pseudorotaxanes
Credi, Alberto
;Andreoni, Leonardo;Cafagno, Dalila
2025
Abstract
We describe the synthesis and characterization of a bipyridinium derivative conjugated with two azobenzene groups (Azo 2 Bpy 2+). The design maintains the ability of the photoswitches to undergo E to Z isomerization upon irradiation to generate a mixture of EE, EZ and ZZ isomers. Moreover, Azo 2 Bpy 2+ is able to undergo self-Assembly with dibenzo[24]crown-8 ether to generate [3]-pseudorotaxanes, driven by the strong cooperative effects, for all its geometric isomers.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
