Viologen-derived material showing photochromic, visually oxygen responsive, and photomodulated luminescence behaviors. Issue 4 (5th January 2021)

• Record Type: Journal Article
• Authors: Li, Zhao-Hao; Xue, Li-Ping; Mu, Yun-Jing; Zhao, Bang-Tun
• Is Part Of: CrystEngComm. Volume 23:Issue 4(2021)
• Page Start: 1019
• Page End: 1024
• Publication Date: 2021-01-05
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/d0ce01630f
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : A new 2D viologen-derived Zn(ii ) photochromic material exhibits photochromic, visually oxygen responsive, and photomodulated luminescent behaviors. Abstract : The synthesis of photochromic functional materials with excellent performances is important owing to their workable applications. In this study, a new viologen-derived Zn(ii ) material with a two-dimensional layered structure, namely {[Zn(L)(cpbpy)](H2 O)3 } n (1 ; H2 L = 2, 5-thiophenedicarboxylic acid; cpbpy = N -(3-carboxypyridin-5-yl)-4, 4′-bipyridinium), was fabricated based on a new mono-substituted viologen derivative via a solvothermal synthesis. Similar to materials containing viologens, 1 displayed a photochromic behavior upon xenon light irradiation. Interestingly, its dehydrated product 1a exhibited a rapid photochromism only under vacuum or an inert atmosphere, which makes 1a a potential O2 sensitive material. Further investigations show that 1 and 1a had remarkably different photomodulated luminescence behaviors. This study widens the application of such a viologen derivative towards constructing new photochromic materials having a rapid photochromic response.