Photochemical and Photophysical Mechanisms of Transition Metal Complexes

过渡金属配合物的光化学和光物理机制

• 批准号: 9400919
• 负责人: Peter Ford
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-01 至 1998-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9400919&HistoricalAwards=false
• 关键词: Photochemical; Photophysical; Mechanisms; Transition; Metal

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.

9400919加州福特大学。--加州大学圣巴巴拉分校化学系Peter Ford博士，由无机化学、生物无机化学和金属有机化学项目支持，研究过渡金属配位和有机金属络合物的光反应和光物理机制。合成了一系列含铜(I)的强发光单核和簇合物，并用连续激光和脉冲激光激发对其进行了光谱表征，并通过发射和瞬时吸收检测确定了单分子和双分子的ES动力学。配合物的光谱性质和成键性质将通过理论计算进行评估。为了了解配位NO的基本性质和制备可作为溶液NO传感器的双生色团系统，我们将研究几种一氧化氮络合物的光化学。当光被分子吸收时，分子获得的能量有时以不同波长的光重新发射(这称为发光)，有时通过在分子内引发化学反应而重新发射。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。例如，这对于发光电子器件的设计非常重要。在另一部分中，将研究一氧化氮(NO)金属络合物在强光下的反应。这对于能够检测溶液中具有重要生化作用的NO的传感器的设计具有重要意义。