Highly Luminescent Metal-Organic Frameworks Based on an Aggregation-Induced Emission Ligand as Chemical Sensors for Nitroaromatic Compounds

Fang Ming Wang, Lei Zhou, William P. Lustig, Zhichao Hu, Jun Feng Li, Bing Xiang Hu, Li Zhuang Chen, Jing Li

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Three new luminescent metal-organic frameworks (LMOFs) based on d10 metals (Zn2+, Cd2+) and the highly emissive aggregation-induced emission ligand 1,1,2,2-tetrakis(4-(4-carboxyphenyl)phenyl)ethene(H4tcbpe) are reported, with the formulas [Cd3(tcbpe)1.5(DMF)(H2O)2]·(DMF)6·(C2H5OH)3 (1), [Zn(tcbpe)(DMF)]·(MeCN) (2), and [Cd(tcbpe)]·(MeCN) (3). Compounds 1 and 2 both emit strong green light with internal quantum yields (IQYs) as high as 66.8% and 65.7%, respectively, while compound 3 emits bluish green light with 37.2% IQY. A solution-phase sensing study shows that 1 has the highest sensitivity to nitroaromatic compounds and demonstrates that it is potentially useful as a luminescence-based chemical sensor. Density functional theory calculations are used to explain the sensing mechanism and relative sensitivity of compound 1 to various nitroaromatic compounds.

Original languageEnglish
Pages (from-to)5166-5173
Number of pages8
JournalCrystal Growth and Design
Volume18
Issue number9
DOIs
Publication statusPublished - Sep 5 2018

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ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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