Abstract
Three ferrocene‐based rotary switches featuring 2‐pyridyl‐1,2,3‐triazole (pytri) “click” chelates have been developed. The rotors can be switched from a folded (syn) to extended (anti) conformation by the addition of [Cu(CH3CN)4](PF6) and 6,6′‐dimesityl‐2,2′‐bipyridine. This extension process could be reversed by the addition of 1,4,8,11‐tetraazacyclotetradecane (cyclam) to sequester the Cu(I) ions. Disappointingly, the weakness of the pytri chelates prevented the development of an electrochemically switchable system.
Three ferrocene‐based rotary switches featuring 2‐pyridyl‐1,2,3‐triazole (pytri) “click” chelates have been developed. The addition and removal of [Cu(6,6′‐dimesityl‐2,2′‐bipyridine)](PF6) units triggers the extension and contraction of the ferrocene‐based rotors.