Aggregation-induced emission enhancement of 2-(2 '-hydroxyphenyl)benzothiazole-based excited-state intramolecular proton-transfer compounds

doi:10.1021/jp070076i

CORC > 化学研究所 > 中国科学院化学研究所

	Aggregation-induced emission enhancement of 2-(2 '-hydroxyphenyl)benzothiazole-based excited-state intramolecular proton-transfer compounds
	Qian, Yan ; Li, Shayu ; Zhang, Guoqi ; Wang, Qian ; Wang, Shuangqing ; Xu, Huijun ; Li, Chengzhang ; Li, Yi ; Yang, Guoqiang
刊名	JOURNAL OF PHYSICAL CHEMISTRY B
	2007-05-31
卷号	111 期号:21 页码:5861-5868
ISSN号	1520-6106
DOI	10.1021/jp070076i
英文摘要	A novel class of 2-(2'-hydroxyphenyl)benzothiazole-based (HBT-based) excited-state intramolecular proton-transfer (ESIPT) compounds, N,N'-di[3-Hydroxy-4-(2'-benzothiazole)phenyl]isophthalic amide (DHIA) and N,N'-di[3-Hydroxy-4-(2'-benzothiazole)phenyl]5-tert-butyl-isophthalic amide (DHBIA) has been feasibly synthesized and the properties of their nanoparticles in THF/H(2)O mixed solvent were investigated. Both compounds were found to exhibit aggregation-induced emission enhancement (AIEE) due to restricted intramolecular motion and easier intramolecular proton transfer in solid state. On identical experimental conditions, the emission of DHBIA aggregates increased more remarkably than that of DHIA. Different aggregation forms of these two organic compounds, due to the steric hindrance of a single tert-butyl group, could be responsible for the notably different degrees of the fluorescence enhancement. Their aggregation modes were investigated on the basis of time-dependent absorption, scanning electron microscope (SEM) images, and molecular modeling with theoretical calculation. The photophysical dynamics were also depicted based on the extremely fast ESIPT four-level cycle.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000246695100010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/61907]
专题	中国科学院化学研究所
通讯作者	Li, Yi
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Photochem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Qian, Yan,Li, Shayu,Zhang, Guoqi,et al. Aggregation-induced emission enhancement of 2-(2 '-hydroxyphenyl)benzothiazole-based excited-state intramolecular proton-transfer compounds[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2007,111(21):5861-5868.
APA	Qian, Yan.,Li, Shayu.,Zhang, Guoqi.,Wang, Qian.,Wang, Shuangqing.,...&Yang, Guoqiang.(2007).Aggregation-induced emission enhancement of 2-(2 '-hydroxyphenyl)benzothiazole-based excited-state intramolecular proton-transfer compounds.JOURNAL OF PHYSICAL CHEMISTRY B,111(21),5861-5868.
MLA	Qian, Yan,et al."Aggregation-induced emission enhancement of 2-(2 '-hydroxyphenyl)benzothiazole-based excited-state intramolecular proton-transfer compounds".JOURNAL OF PHYSICAL CHEMISTRY B 111.21(2007):5861-5868.