Selective, Sensitive, and Reversible Detection of Vapor-Phase High Explosives via Two-Dimensional Mapping: A New Strategy for MOF-Based Sensors

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• 作者：Zhichao Hu ; Sanhita Pramanik ; Kui Tan ; Chong Zheng ; Wei Liu ; Xiao Zhang ; Yves J. Chabal ; Jing Li
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：October 2, 2013
• 年：2013
• 卷：13
• 期：10
• 页码：4204-4207
• 全文大小：267K
• 年卷期：v.13,no.10(October 2, 2013)
• ISSN：1528-7505

文摘

A new strategy has been developed for the effective detection of high explosives in vapor phase by fluorescent metal鈥搊rganic framework (MOF) sensors. Two structurally related and dynamic MOFs, (Zn)₂(ndc)₂P路xG [ndc = 2,6-naphthalenedicarboxylate; P =1,2-bis(4-pyridyl)ethane (bpe) or 1,2-bis(4-pyridyl)ethylene (bpee); G = guest/solvent molecule], exhibit a two-dimensional signal response toward analytes of interest in the vapor phase, including aromatic and aliphatic high explosives (e.g., TNT and RDX). The interaction between analytes and the MOF has been studied using in situ infrared absorption spectroscopy and a DFT computational method.