Molecular Logic Gates and Switches Based on 1,3,4-Oxadiazoles Triggered by Metal Ions
作者:Ai-Fang Li、Yi-Bin Ruan、Qian-Qian Jiang、Wen-Bin He、Yun-Bao Jiang
DOI:10.1002/chem.200903265
日期:2010.5.17
chelating environment for metal ions. These compounds showed fluorescence response profiles varying in both emission intensity and wavelength toward the tested metal ions Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, and Pb2+ and the responses were dependent on the substituent X, with those of 1 d being the most substantial. The 1,3,4‐oxadiazole O or N atom and pyridine N atom were identified as metal‐chelating sites. The
用于信息处理应用程序的有机分子设备是构建分子级机器的高度有用的构建基块。能够执行逻辑运算的“智能”分子的发展将使分子级设备和机器的创建成为可能。我们设计了一系列带有2-(对位取代)苯基和5-(邻吡啶基)基团的2,5-二芳基-1,3,4-恶二唑(取代基X = NMe 2,OEt,Me,H和Cl; 1 a – e)形成金属离子的双齿螯合环境。这些化合物对被测金属离子Ni 2 +,Cu 2 +,Zn的荧光响应曲线在发射强度和波长上均发生变化。2+,Cd 2 +,Hg 2+和Pb 2+以及响应取决于取代基X,最重要的是1 d。1,3,4-恶二唑O或N原子和吡啶N原子被确定为金属螯合位点。金属螯合后1 d的荧光响应被用于开发OR,NOR,INHIBIT和EnNOR逻辑门以及“ ON-OFF-ON”和“ OFF-ON-OFF”荧光开关的真值表。 ,3,4-恶二唑分子系统。