Photophysics of Metal-Organic and Organometallic pi-Conjugated Oligomers

金属有机和有机金属π共轭低聚物的光物理学

基本信息

批准号：
0211252
负责人：
Kirk Schanze
金额：
$ 34.5万
依托单位：
University of Florida
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2002
资助国家：
美国
起止时间：
2002-07-01 至 2006-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0211252&HistoricalAwards=false
关键词：
Photophysics Metal Organic Organometallic pi

项目摘要

This award by the Inorganic, Bioinorganic and Organometallic Chemistry program supports research by Professor Kirk S. Schanze of the University of Florida to pursue studies on the "Photophysics of Metal-Organic and Organometallic pi-Conjugated Oligomers". Pi-conjugated polymers and oligomers comprise a new generation of molecular materials with technologically useful optical, electronic, and opto-electronic properties. Research is underway to investigate the excited state properties of mono-disperse pi-conjugated oligomers that contain transition metal chromophores to gain a molecular level understanding of their excited state properties. Objectives include an understanding of how transition metal chromophores modify the excited state properties of the pi-conjugated organic systems and how the pi-conjugated molecules modify the excited state properties of the metal complexes, particularly the properties of the triplet-pi, pi* manifold of the conjugated oligomer. Metal ion complexes involved in metal-to-ligand charge transfer (MLCT) excited states include Ru(II), Os(II) and Rh(III) with alpha-thiophene oligomers that modulate the energy gap between the MLCT and triplet-pi,pi* manifolds in both mono- and polynuclear complexes. The excited state properties of platinum-acetylide oligomers will be examined to provide clear information concerning the spatial extent of the singlet-pi,pi* and triplet-pi,pi* excitons and to understand how inter-chain interactions modify the excited state properties of the pi-conjugated Pt-acetylides.The photochemistry of pi-conjugated molecules attached to transition metal ions are being investigated as to their basic photophysical properties with applications that include novel electronic light-emitting devices, light-to electrical energy conversion, laser light protection, and plastic electronic circuits.

该奖项由佛罗里达大学的柯克·S·Schanze（Kirk S. Schanze）教授的研究颁发，旨在研究“金属和有机和有机金属相结合的低聚物”的研究。 PI结合的聚合物和低聚物包括具有技术有用的光学，电子和光电特性的新一代分子材料。正在进行研究以研究包含过渡金属发色团的单分散pi偶联的寡聚物的激发态特性，以获得对其激发态性能的分子水平的理解。目的包括了解过渡金属发色团如何修改PI共轭有机系统的激发态特性，以及PI偶联的分子如何修改金属络合物的激发态特性，尤其是Triplet-Pi的特性，Pi* cormold的特性共轭寡聚。与金属与配体电荷转移（MLCT）激发态有关的金属离子复合物包括RU（II），OS（II）和RH（III）与α-噻吩寡聚体，这些胆碱寡聚物可调节MLCT和Triplet-Pi之间的能量差距，单核和多核复合物中的PI*歧管。将检查铂 - 乙酰基寡聚物的激发状态特性，以提供有关singlet-pi，pi*和triplet-pi，pi*激子的空间范围的明确信息，并了解链间相互作用如何修改激发态性能PI偶联的PT-乙酰基。和塑料电子电路。