温州大学化学与材料工程学院

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祝贺黄少铭和杨小平老师指导研究生在Journal of Materials Chemistry C发表学术论文

发布时间:2018-09-12    来源:化学与材料工程学院    作者:    点击次    [点击关闭]

标题:Self-assembly of luminescent 12-metal Zn–Ln planar nanoclusters with sensing properties towards nitro explosives

 

AbstactTwo types of Zn–Ln nanoclusters [Nd2Zn2L2(L0)2(OAc)2(NO3)2(H2O)2] (1) and [Ln6Zn6L2(L00)2O2(OAc)18] (Ln = Nd (2) and Sm (3)) were prepared using one long Schiff base ligand (H2L) with a naphthyl backbone and two short polydentate ligands (H2L0 and H2L00). 1 and 2–3 show linear and planar structures with sizes of approximately 10  10  30 Å and 10  15  22 Å, respectively. The chromogenic Zn/ligand components can act as efficient sensitizers for lanthanide luminescence, and thus 1–3 show visible and NIR emissions. In these clusters, the Schiff base ligands display a ‘‘U-shaped’’ configuration, which is suitable to form p  interactions and hydrogen bonds with nitro aromatic compounds. Interestingly, Zn–Sm cluster 3 shows visible and NIR luminescence sensing of nitro explosives and exhibits high sensitivity to 1,4-DNB and TNT at the ppb level

 

 

原文链接:

https://doi.org/10.1039/c8tc02426j