A yellow-green tetranuclear Cd(II) (8-quinolinolato) chelate with thiophene group: synthesis, crystal structure, photophysical properties and DNA binding
作者:Baixing Yang、Yanping Huo、Liming Zhang、Sheng Hu、Songying Wang、Baohua Huang
DOI:10.1016/j.tet.2015.04.054
日期:2015.6
One novel tetranuclear Cd(II) complex with formula [Cd4L6(NO3)2] (1) is accessible by solvothermal reaction of Cd(NO3)2 with a (E)-2-[2-(3-thienyl)ethenyl]-8-quinolinol ligand (HL), which was characterized by means of 1H NMR, ESI-MS, elemental analysis, IR and TGA. X-ray structural analysis indicated that 1 exhibited a double open cubane-like core structure, which was bridged by six 8-hydroxyquinolinate-based
一种新型的具有式[Cd 4 L 6(NO 3)2 ](1)的四核Cd(II)络合物可通过Cd(NO 3)2与(E)-2- [2-(3-噻吩基]乙烯基] -8-喹啉醇配体(HL),通过1 H NMR,ESI-MS,元素分析,IR和TGA表征。X射线结构分析表明1展示了一个双重开放的类似古巴的核心结构,该结构被六个基于8-羟基喹啉酸酯的配体桥接。丰富的芳族堆积相互作用和非经典的CH···O弱相互作用维持了堆积结构。镉盐和HL在溶液中的配位行为是通过UV-vis和光致发光(PL)进行的。实验结果证实了在室温下固态下标题化合物的发射光谱给出了强烈的黄绿色发光。此外,还研究了与该化合物相互作用的C 60和EtBr-DNA的热稳定性,荧光寿命,电子计算和猝灭行为。