Light-driven flagella-like motion of coordination compound single crystals

Ekka, Akansha and Kurakula, Uma and Choudhury, Aditya and Mishra, Anshumika and Faye, Anshul and Halcovitch, Nathan R. and Medishetty, Raghavender (2023) Light-driven flagella-like motion of coordination compound single crystals. Chemical Communications, 59 (29). pp. 4384-4387. ISSN 1359-7345

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Single crystals of coordination complexes that show mechanical motion under the influence of external stimuli are of great interest due to their applications in photoactuators, sensors and probes. The solid-state [2+2] cycloaddition reaction has been one of the most prominent chemical reactions for photoresponsive materials in recent years. However, a relatively limited number of compounds have been reported, and most of these compounds have only shown destructive photosalient effects. Here, we report two photoreactive Zn(II) metal complexes with a thiophene-based photoreactive linker, 2tpy (4-(2-(thiophen-2-yl)vinyl)pyridine). In addition, under photoirradiation these complexes showed flagella-like bending, first towards and subsequently away from the excitation light source. This is the first report of metal-complexes and the solid-state [2+2] cycloaddition reaction that presents flagella-like motion in single crystals.

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Journal Article
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Chemical Communications
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17 Apr 2023 13:50
Last Modified:
18 Sep 2023 02:13