Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge, CB3 0HE, UK.
Adv Mater. 2013 Jun 25;25(24):3324-8. doi: 10.1002/adma.201300478. Epub 2013 Mar 18.
A photoinduced solid-state SO₂ isomerism drives a larger mechanical change (benzene-ring rotation) in a neighbouring ion (i.e., the system acts as a solar-powered molecular transducer). The ring rotation and SO₂ photoisomerisation are observed using in situ X-ray crystallography and are controllable, reproducible, and metastable at low temperatures. This discovery presents a new range of materials for solar-energy-based molecular transduction.
光诱导的固态 SO₂ 异构化导致相邻离子发生更大的机械变化(即苯环旋转)(也就是说,该体系充当了太阳能驱动的分子换能器)。利用原位 X 射线晶体学观察到了环旋转和 SO₂ 光致异构化,其在低温下具有可控性、可重复性和亚稳性。这一发现为基于太阳能的分子换能提供了一系列新材料。