摘要
We report a molecular switching event that leads to a reversible large-scale expansion of a floating porphyrin Langmuir layer residing at the air-water interface. This vapour-induced protonation-deprotonation mechanism, responsible for the expansion-contraction cycle, could potentially be exploited in applications in which a physical shape-change is triggered by exposure to an acidic or basic gas.
- 出版日期2010