Conjugated Diruthenium Metallaynes: Monomers, Dimers and Oligomers

无机化学、生物无机化学和金属有机化学项目支持迈阿密大学化学系同仁研究高共轭低聚双金属化合物。这些材料包括交替使用聚乙炔的双Ru“桨轮”。二Ru单元由桥联配体支撑，如2-苯胺吡啶酸酯、N，N‘-二芳基甲酰胺或N，N’-二甲基苯甲酰胺。这些二聚体通过两个、四个或六个碳桥相连。Ru单元可以改善齐聚物中的电子通信和离域。这些金属-金属键合物种可访问的多种氧化还原状态使其具有有趣的磁性、电泳性和发色性。任还在研究如何使用末端功能化的低聚物作为分子“鳄鱼夹”，制造纳米级的电子连接。这些化合物正在被研究为潜在的“分子导线”，即可以在纳米电子电路中导电的单分子。对这些分子中电子通讯和电导的基础研究可能会导致分子电子器件的出现。从事该项目的科学家将学习现代合成和表征技术，以及纳米修饰和纳米连接技术。

The Inorganic, Bioinorganic and Organometallic Chemistry Program supports the research of Tong Ren, Department of Chemistry, University of Miami, investigating highly conjugated oligomeric diruthenium metallaynes. These consist of diruthenium "paddle wheels" alternating with polyalkynes. The diruthenium unit is supported by bridging ligands such as 2-anilinopyridinate, N,N'diarylformamidinate, or N, N'-dimethylbenzamidinate. These dimers are linked by two, four, or six carbon bridges. The ruthenium units may improve electronic communication and delocalization in the oligomer. The multiple redox states accessible by these metal-metal bonded species allows interesting magnetic, electrophoric and chromophoric properties. Ren is also investigating the use of terminally functionalized oligomers that serve as molecular "alligator clips", making a nanoscale electrical connection.These compounds are being studied as potential "molecular wires", single molecules that can conduct electricity in a nanosized electronic circuit. Fundamental studies of electronic communication and conductance in these molecules may lead to molecular electronic devices. Scientists working on this project will learn modern synthetic and characterization skills as well as nanopatterning and nanojunction techniques.