Hits:

Indexed by:期刊论文

Date of Publication:2016-09-16

Journal:CHEMICAL PHYSICS LETTERS

Included Journals:SCIE、EI、Scopus

Volume:661

Page Number:257-262

ISSN No.:0009-2614

Key Words:Luminescent MOF; Nitro-explosives; TDDFT; Hydrogen bonding; Fluorescent probe

Abstract:This paper investigates the luminescent properties of luminescent metal-organic framework (LMOF) [Zn-2(oba)(2)(bpy)], and its selectivity for the detection of nitro-explosives via fluorescence quenching, using the density functional and time-dependent density functional theories. The luminescent mechanism of the LMOF follows the electron transfer from ligand to ZnO quantum dot. The hydrogen bondings formed between LMOF and electron-withdrawing nitro-explosives as well as electron-donating aromatic compounds have different influences on the luminescent mechanism of the LMOF. The hydrogen bonding in the excited state was investigated to display the relationship between hydrogen bonding and fluorescence. (C) 2016 Elsevier B.V. All rights reserved.