Carboxylate-induced Various Structures of Ni(Ⅱ) Complexes with Fluorescence Sensing and Bifunctional Electrochemical Properties

• 来源期刊: 高等学校化学研究（英文版）
• 年，卷（期）: 2019,（4）
• 页码范围: 549-555
• 页数: 7页
• 语种: 英文
• DOI: 10.1007/s40242-019-9015-7

摘要

We synthesized three new.Ni(Ⅱ) coordination polymers [Ni(L)(HIP)(H2O)2]·H2O(CP1),[Ni(L)(NIP)]·2H2O(CP2) and [Ni(L)(NDC)(H2O)2](CP3)[L=N,N'-bis(pyridine-3-yl)thiophene-2,5-dicarboxamide,H2HIP=5-hydroxyisophthalic acid,H2NIP=5-nitroisophthalic acid,H2NDC=2,6-naphthalenedicarboxylic acid] by hydrothermal method,which were characterized by means of infrared spectra(IR),TG analyses,PXRD and single-crystal X-ray diffraction.The CP1 is a 1D tubular structure based on [Ni-HIP]2 loops and pairs of L ligands.CP2 is a 2D 3,5-connected architecture,which consists of Ni-L linear chains and (Ni-NIP)2 double chains.CP3 is a 2D network,which features 4-connected topology.Solid-state luminescent behaviours of CP1-CP3 were investigated.The CP1 can detect Fe3+ ions through luminescence quenching.The electrochemical properties of CP1 buk-modified carbon paste electrode(CP1-CPE) has also been investigated,which has bifunctional electrocatalytic activity for oxidation of ascorbic acid and reduction of NO2-.