Bidipyrrin-bridged macrocycles, prepared from NiII-bridged dipyrrinbased nanorings by intramolecular oxidative biaryl coupling reactions, yielded [2+4]-type ZnII-assisted stable twisted-ring dimers comprising two double helices. These [2+4]-type metal complexes can be optically resolved by chiral HPLC and exhibit tunable electronic and optical properties as a result of spring-like motions. The double helices behave as glue to connect two macrocycles and as the screws of hinges to form thermally responsive synchronized spring systems.
All Science Journal Classification (ASJC) codes
- Organic Chemistry