ELECTRONIC STRUCTURE OF AND PHOTOISOMERIZATION IN RUTHENIUM-DMSO COMPLEXES

钌-DMSO配合物的电子结构和光异构化

• 批准号: 7954525
• 负责人: ERIK C WASINGER
• 金额: $ 0.02万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-03-01 至 2010-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7954525
• 关键词: Complex; Computer Retrieval of Information on Scientific Projects Database; Dimethyl Sulfoxide; Funding; Grant; Institution; Ligands; Mediating; Research; Research Personnel; Resources; Ruthenium; Series; Source; Surface; United States National Institutes of Health; Visible Radiation; electronic structure; irradiation; structural biology; synchrotron radiation

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. A series of [Ru(tpy)(L2)(DMSO)]1+/2+ (tpy = terpyridine, L2 is a bidentate ligand, DMSO = dimethylsulfoxide) complexes has been developed, some of which display linkage isomerization of the DMSO ligand upon irradiation with visible light. The photoisomerization takes place on the excited state surface originating from the MLCT transition to the terpyridine ligand, which is in turn mediated by the bidentate L2 ligand. The difference in reactivity between complexes with varying L2 ligands can be investigated by probing the electronic structure surrounding the Ru-S and Ru-N bond interactions. Thus we will investigate the electronic structure of this class of phototriggered molecules using a combination of Ru K- and L-edge as well as ligand K-edge XAS.

该子项目是利用该技术的众多研究子项目之一 资源由 NIH/NCRR 资助的中心拨款提供。子项目及 研究者 (PI) 可能已从 NIH 的另一个来源获得主要资金， 因此可以在其他 CRISP 条目中表示。列出的机构是 对于中心来说，它不一定是研究者的机构。 开发了一系列 [Ru(tpy)(L2)(DMSO)]1+/2+（tpy = 三联吡啶，L2 是双齿配体，DMSO = 二甲基亚砜）配合物，其中一些配合物显示 DMSO 配体的键异构化当用可见光照射时。光异构化发生在激发态表面上，源自 MLCT 跃迁到三联吡啶配体，而这又由二齿 L2 配体介导。具有不同 L2 配体的配合物之间反应性的差异可以通过探测 Ru-S 和 Ru-N 键相互作用周围的电子结构来研究。因此，我们将使用 Ru K-边缘和 L-边缘以及配体 K-边缘 XAS 的组合来研究此类光触发分子的电子结构。