A Supramolecule-Triggered Mechanochromic Switch of Cyclodextrin-Jacketed   Rhodamine and Spiropyran Derivatives

doi:10.1002/adfm.201504048

CORC > 北京大学 > 化学与分子工程学院

	A Supramolecule-Triggered Mechanochromic Switch of Cyclodextrin-Jacketed Rhodamine and Spiropyran Derivatives
	Wan, Shulin ; Ma, Zhiyong ; Chen, Chen ; Li, Fangfei ; Wang, Feng ; Jia, Xinru ; Yang, Wantai ; Yin, Meizhen
刊名	ADVANCED FUNCTIONAL MATERIALS
	2016
关键词	BETA-CYCLODEXTRIN MECHANICAL ACTIVATION MOLECULAR ASSEMBLIES INCLUSION COMPLEX COVALENT BONDS POLYMERS LUMINESCENCE COLOR PHOTOCHROMISM BEHAVIOR
DOI	10.1002/adfm.201504048
英文摘要	An innovative approach for covalent-bond-activated mechanoresponse by complexing rhodamine or spiropyran with cyclodextrin (CD) is reported. This approach endows diverse fluorophores with perfect mechanochromism by introducing a supramolecular system. Unique characteristics such as noncovalent chemical modification and convenient preparation make this approach promising for practical applications. The strong hydrogen bonds provided by CD play a crucial role in triggering the mechanochromic switch. First, the hydrogen bonds seize both sides of the fluorophore's weak chemical bonds and tightly lock the fluorophore in the cavity of CD. Second, the hydrogen bonds prompt the aggregation of complex inclusions in large ordered arrays and strengthen the molecular interactions. In this way, the weak chemical bonds can focus more external force and stretch more easily upon shearing (quantified). This is the first report of supramolecule-triggered mechanochromic switches. This study opens an avenue to correlate a mechanochemical reaction with a supramolecular system.; National Natural Science Foundation of China [21174012, 51221002, 21574009]; Beijing Natural Science Foundation [2142026]; Innovation and Promotion Project of Beijing University of Chemical Technology; SCI(E); EI; ARTICLE; yinmz@mail.buct.edu.cn; 3; 353-364; 26
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/436151]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wan, Shulin,Ma, Zhiyong,Chen, Chen,et al. A Supramolecule-Triggered Mechanochromic Switch of Cyclodextrin-Jacketed Rhodamine and Spiropyran Derivatives[J]. ADVANCED FUNCTIONAL MATERIALS,2016.
APA	Wan, Shulin.,Ma, Zhiyong.,Chen, Chen.,Li, Fangfei.,Wang, Feng.,...&Yin, Meizhen.(2016).A Supramolecule-Triggered Mechanochromic Switch of Cyclodextrin-Jacketed Rhodamine and Spiropyran Derivatives.ADVANCED FUNCTIONAL MATERIALS.
MLA	Wan, Shulin,et al."A Supramolecule-Triggered Mechanochromic Switch of Cyclodextrin-Jacketed Rhodamine and Spiropyran Derivatives".ADVANCED FUNCTIONAL MATERIALS (2016).