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: 8362220
• 负责人: ERIK C WASINGER
• 金额: $ 0.19万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-03-01 至 2012-02-29
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8362220
• 关键词: Complex; Dimethyl Sulfoxide; Funding; Grant; Ligands; Mediating; National Center for Research Resources; Principal Investigator; Radiation; Research; Research Infrastructure; Resources; Ruthenium; Series; Source; Surface; United States National Institutes of Health; Visible Radiation; cost; electronic structure; irradiation; structural biology

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. 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.

该子项目是利用资源的众多研究子项目之一 由 NIH/NCRR 资助的中心拨款提供。子项目的主要支持 并且子项目的主要研究者可能是由其他来源提供的， 包括其他 NIH 来源。 子项目可能列出的总成本 代表子项目使用的中心基础设施的估计数量， NCRR 赠款不直接向子项目或子项目工作人员提供资金。 开发了一系列[Ru(tpy)(L2)(DMSO)]1+/2+（tpy = 三联吡啶，L2 是二齿配体，DMSO = 二甲基亚砜）配合物，其中一些在可见光照射下显示出 DMSO 配体的键异构化。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。