Photochemical and Photophysical Mechanisms of Transition Metal Complexes

9400919福特U.的Calif。- 圣巴巴拉加州大学圣巴巴拉分校化学系的Peter福特博士得到了无机、生物无机和有机化学项目的支持，研究过渡金属配位和有机金属配合物的光反应和光物理机制。一系列强烈发光的单核和簇合物含有Cu（I）将合成和光谱特征在于使用CW和脉冲激光激发，和单和双分子ES动力学将确定发射和瞬态吸收检测。配合物的光谱和键合性质将与理论计算的帮助下进行评估。几种一氧化氮复合物的光化学将被检查，以了解协调NO的基本性质，并准备双发色团系统，可能作为传感器的解决方案NO。 当光被分子吸收时，分子获得的能量有时会以不同波长的光重新发射（这称为发光），有时会引发分子内的化学反应。这个项目旨在探索这两种可能性。通过使用一系列特别设计的铜化合物，可以详细了解发光是如何发生的。这对于例如发光电子器件的设计具有重要意义。在另一部分中，当复合物暴露于强光时，将检查一氧化氮（NO）的金属复合物的反应。这与可以检测溶液中具有重要生物化学作用的NO的传感器的设计有关。

9400919 Ford U. of Calif. - Santa Barbara Dr. Peter Ford, Chemistry Department, University of California - Santa Barbara, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program for studies of the photoreaction and photophysical mechanisms of transition metal coordination and organometallic complexes. A series of strongly luminescing mononuclear and cluster compounds containing Cu(I) will be synthesized and spectroscopically characterized using both CW and pulse laser excitations, and the uni- and bimolecular ES dynamics will be determined by emission and transient absorption detection. The spectroscopic and bonding properties of the complexes will be evaluated with the aid of theoretical calculations. The photochemistry of several nitric oxide complexes will be examined both in order to understand the fundamental properties of coordinated NO and to prepare dual chromophore systems which might serve as sensors for solution NO. When light is absorbed by a molecule, the energy which the molecule acquires is sometime re-emitted as light of a different wave length (this is called luminescence) and sometimes by initiating a chemical reaction within the molecule. This project is designed to probe both possibilities. By using a specially designed series of copper compounds the details of how luminescence occurs. This has great importance to, for example, the design of light emitting electronic devices. In another portions the reactions of metal complexes of nitric oxide (NO) will be examined as the complexes are exposed to intense light. This has relevance to the design of sensors which can detect NO, which has important biochemical roles, in solution.