Fundamental Studies of Fluorocarboranes and Nanoclassical Metal Carbonyls

这个无机、生物无机和有机金属化学项目的奖项支持科罗拉多州立大学化学系的Steven H. Strauss博士对弱配位阴离子和阳离子金属羰基的研究。将合成具有多氟近碳硼烷弱配位阴离子（WCAs）的活性金属阳离子盐，并对其进行结构、化学和光谱表征。这些弱反离子在恶劣的化学和热条件下是稳定的，使它们成为合成新型聚电解质、固态催化剂和气凝胶的有趣物质。以WCAs为反离子，合成了具有少量或无pi反键的新型阳离子金属羰基。这部分项目的目标是了解这些新型非经典金属羰基的结构、键合和化学反应性。理论计算将用于帮助阐明实验结果。带负电荷的物质，阴离子，需要平衡正离子的正电荷。在这里，弱配位阴离子被用来稳定带正电的金属离子，同时使电荷畸变最小化。这使得表征金属-羰基键的状态成为可能，这些状态在许多重要的工业过程中是重要的瞬态，例如气体净化，水气转换催化和甲醇合成催化。

This award in the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research on weakly coordinating anions and cationic metal carbonyls by Dr. Steven H. Strauss of the Chemistry Department, Colorado State University. Salts of reactive metal cations with polyfluorinated closo carborane weakly coordinating anions (WCAs) will be synthesized and characterized structurally, chemically, and spectroscopically. These weak counterions are stable under harsh chemical and thermal conditions, making them interesting species for use in synthesis of new polyelectrolyes, solid state catalysts, and aerogels. New cationic metal carbonyls with little or no pi backbonding will be synthesized, using WCAs as counterions. The goal of this part of the project is to understand the structure, bonding and chemical reactivity of these novel nonclassical metal carbonyls. Theoretical calculations will be used to help elucidate the experimental results.Negatively charged species, anions, are needed to balance the positive charge of cations. Here weakly coordinating anions are used to stabilize positive metal-containing ions while minimizing charge distortion. This makes it possible to characterize metal-carbonyl bonding in states that are important transients in many processes important in industry, such as gas purification, water-gas shift catalysis, and methanol synthesis catalysis.