Tohoku Univ.
Japan
You might wonder to know that molecules work like a scissors in the presence of UV radiation. Such molecules are called “molecular scissors”. Here is an example of it in which an azobenzene moiety acts as a handle, a ferrocene unit acts as a pivot point and two phenyl groups act as the blades.
The conformational changes induced by cis-trans isomerization of the azobenzene switch, due to alternating irradiation with UV and visible light, are translated into a rotational movement around the metal center of the ferrocene unit.
Source: a text book about “Controlled Rotary Motion at the Molecular Level”
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