Iridium Complexes on the Border between Organometallic and Coordination Complexes

有机金属配合物与配位配合物之间的铱配合物

• 批准号: 9015897
• 负责人: Jim Atwood
• 金额: $ 14.25万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-15 至 1992-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9015897&HistoricalAwards=false
• 关键词: Iridium; Complexes; Border; between; Organometallic

This award in the Inorganic, Bioinorganic and Organometallic Program will support continued work on iridium compounds by Dr. Jim D. Atwood of the State University of New York at Buffalo. The compounds are of general formula RIr(CO)L2, where R = alkyl, alkoxy, hydroxo, or chloro, and L = phosphine or substituted phosphine. These species will be used to probe three areas: to model catalytic reactions in aqueous solution, to study reactivity of complexes containing mixtures of hard and soft ligands, and to study the reactivity of complexes with gaseous sulfur dioxide and nitrous oxide. The first two projects are relevant to optimizing catalytic reactions and the third project may have implications for reducing air pollutants. For the first project, sulfonated phosphines will be used in order to solubilize the species in aqueous solution. In the second project, carbonate and sulfate ligands will be contained in the compounds, along with carbonyl and the alkoxy and phosphine groups. Preliminary evidence on related complexes suggests that substitution reactions of compounds containing both hard and soft ligands are rapid, and this phenomenon will be specifically investigated. In the third project, the substitution of sulfate ligands by sulfur dioxide and nitrous oxide will be investigated. If such reaction occurs, the gases will be effectively absorbed by a solid.

这个无机、生物无机和有机金属项目的奖项将支持纽约州立大学布法罗分校的吉姆·d·阿特伍德博士继续研究铱化合物。化合物的通式为RIr(CO)L2，其中R =烷基、烷氧基、羟基或氯，L =膦或取代膦。这些物种将用于探索三个领域：模拟水溶液中的催化反应，研究含有软硬配体混合物的配合物的反应性，以及研究配合物与气态二氧化硫和氧化亚氮的反应性。前两个项目与优化催化反应有关，第三个项目可能与减少空气污染物有关。在第一个项目中，将使用磺化磷化氢，以使该物种在水溶液中溶解。在第二个项目中，碳酸盐和硫酸盐配体将包含在化合物中，以及羰基和烷氧基和膦基。有关配合物的初步证据表明，含有硬配体和软配体的化合物的取代反应都是快速的，这一现象将被专门研究。在第三个项目中，将研究二氧化硫和氧化亚氮取代硫酸盐配体。如果发生这种反应，气体就会被固体有效地吸收。