Cu2+-Selectivity gated photochromism in Schiff-modified diarylethenes with a star-shaped structure
2017 (English)In: Journal of Materials Chemistry C, ISSN 2050-7526, Vol. 5, no 2, 282-289 p.Article in journal (Refereed) Published
A great deal of effort has been devoted to developing gated photochromic systems due to their advantages in the smart materials and opto-electronic fields, whereas the gating function through certain ions has rarely been addressed. Since the photochromic materials gated by ions can be readily further processed into a multi-functional molecular switch and probe, we herein designed and conveniently synthesized a star-shaped Schiff-based diarylethene derivative showing typical photochromic properties in solution. This compound possesses two response channels (colorimetric and fluorogenic) to Cu2+ ions with photoswitching characteristics, making it a viable photochromic probe. It is noteworthy that its photochromic reactivity can be locked when Cu2+ ions are introduced into the solution. Moreover, the photoinactive and photoactive states can be interchanged reversibly by binding Cu2+ ions and unbinding Cu2+ ions using EDTA, which shows promise for application in multi-controlled molecular switches and smart materials. The mechanism of the photochromic properties locked by Cu2+ ions is reasonably proposed by theoretical simulations. These results could be valuable for the further development of molecular switching systems with multiple stimuli responses.
Place, publisher, year, edition, pages
Royal Society of Chemistry, 2017. Vol. 5, no 2, 282-289 p.
IdentifiersURN: urn:nbn:se:kth:diva-202779DOI: 10.1039/c6tc04756dISI: 000392813800005OAI: oai:DiVA.org:kth-202779DiVA: diva2:1079116
QC 201703072017-03-072017-03-072017-03-07Bibliographically approved