By exploiting structural rigidity, coordination geometries and bond rotational barriers that disfavour the formation of smaller homologues, molecular switches based on [c3] and [c4]daisy chains have been assembled selectively; they display muscle-like motion in multiple dimensions with changes in length of approximately 23% and 36%, respectively.
- Jia-Cheng Chang
- Shin-Han Tseng
- Sheng-Hsien Chiu