Stimuli-Responsive Lanthanide–Dianthracene Frameworks: Lanthanide-Dependent Photocycloaddition Reaction and Photophysical Properties

IF 3.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Crystal Growth & Design Pub Date : 2024-11-25 DOI:10.1021/acs.cgd.4c0128710.1021/acs.cgd.4c01287

Qian-Qian Su, Song-Song Bao, Xin-Da Huang, Qian Teng, Xiu-Fang Ma, Ye-Hui Qin and Li-Min Zheng*,

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引用次数: 0

Abstract

Metal–organic frameworks (MOFs) showing stimuli-responsive optical properties are very attractive due to their potential applications in information storage, molecular switches, and devices. In this work, we report a series of isomorphic lanthanide–dianthracene phosphonates with layered framework structures, namely, [Ln(NO₃)₃(depma₂)_1.5]·(depma₂)_0.5 (1Ln, Ln = Nd, Sm, Eu, Gd, Tb, Ho, Er, Tm, Yb), where depma₂ stands for prephotodimerized 9-diethyl-phosphonomethylanthracene (depma). 1Ln experiences a thermally induced single-crystal-to-single-crystal (SC–SC) structural transformation forming a chain compound [Ln(NO₃)₃(depma)(depma₂)]·(depma₂)_0.5 (2Ln) in which one depma₂ is dissociated into an anthracene pair. Interestingly, 2Ln (Ln = Sm, Gd, Tb, Tm, Yb) exhibit excimer emission and undergo [4 + 4] photocycloaddition of anthracene in an SC–SC fashion to form the pristine 1Ln, while the others either display a near-infrared (NIR) emission (for 2Nd, 2Er, 2Ho) or nonemissive (for 2Eu) and do not undergo photocycloaddition reaction. Obviously, reversible photoresponsive luminescence properties can be achieved for 2Ln (Ln = Sm, Gd, Tb, Tm, Yb) but not for 2Ln (Ln = Eu, Nd, Er, Ho).

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来源期刊

Crystal Growth & Design 化学-材料科学：综合

CiteScore

6.30

自引率

10.50%

发文量

650

审稿时长

1.9 months

期刊介绍： The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.