期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 2, 期 47, 页码 10073-10081出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4tc01982b
关键词
-
资金
- IISER TVM
- Science and Engineering Research Board (SERB), Govt. of India [SB/S1/IC-14/2013]
- CSIR
Nitro aromatics are the principal components of explosives used in acts of terrorism and within improvised explosive devices, among others. Although high sensitivity towards nitro aromatic explosives has been demonstrated, selective detection and discrimination are critical for practical applications. Fluorescence quenching of metal-organic frameworks (MOFs) is sufficiently sensitive to detect any nitro explosives, but discriminative detection with different numbers of -NO2 groups is rare. Here we report a stable fluorescent MOF, [Zn-2(NDC)(2)(bpy)]center dot G(x), 1 (where NDC = 2,6-naphthalenedicarboxylic acid, bpy = 4,4'-bipyridine, and G = guest solvent molecules), whose fluorescence is quenched by trace amounts of nitro aromatics introduced from solution or in vapor phase. The steady-state and time-resolved experiments show that the quenching process is dynamic in nature and the interactions (dipole-dipole, pi-stacking) between the MOF and nitro explosives play a crucial role in the discriminative detection of nitro aromatics with different numbers of -NO2 groups.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据