Chemistry of Free Atoms and Reactive Clusters/Particles

自由原子和原子团将用作合成子和催化剂。有机和无机化学品将被允许与早期过渡金属原子和由此产生的中间体相互作用，以产生有用的有机金属试剂。选定的金属原子将被困在低温溶剂中，这些溶剂化的金属原子将被用来制备新的双金属分子团簇和纳米级金属和双金属颗粒。这种颗粒的低温生长应该产生不同寻常的形态，从层状结构到均匀的固溶体。EXAFS， XPS， XRD，穆斯堡尔，化学和催化探针反应将用于表征。类似的由溶剂化金属原子和团簇产生的薄膜的研究也将进行，目的是获得影响附着力的知识。还将尝试将这种方法扩展到介电材料。在化学学部无机、生物无机和有机金属项目中，堪萨斯州立大学的Kenneth J. Klabunde博士将继续研究自由原子和原子团的化学性质。可以用这种方法制备的材料包括有用的有机金属试剂、双金属团簇、薄膜和介电材料。这项研究的结果可能会对许多技术领域产生直接影响，包括催化、电子和陶瓷。

Free atoms and clusters of atoms will be used as synthons and catalysts. Organic and inorganic chemicals will be allowed to interact with early transition metal atoms and resultant intermediates trapped to yield useful organometallic reagents. Selected metal atoms will be trapped in low temperature solvents, and these solvated metal atoms will be used to prepare new bimetallic molecular clusters and nano-scale metal and bimetallic particles. The low temperature growth of such particles should yield unusual morphologies ranging from layered structures to homogeneous solid solutions. EXAFS, XPS, XRD, Mossbauer, and chemical and catalytic probe reactions will be used for characterization. Analogous studies of thin films produced from solvated metal atoms and clusters will be pursued also, with the goal of gaining knowledge about what affects adhesion. Extensions of this methodology to dielectric materials will also be attempted. %%% In this project in the Inorganic, Bioinorganic, and Organo- metallic Program of the Chemistry Division, Dr. Kenneth J. Klabunde of Kansas State University will continue studies of the chemistry of free atoms and clusters of atoms. Materials that can be prepared by this methodology include useful organo- metallic reagents, bimetalic clusters, thin films, and dielectric materials. The results of this research are potentially of direct interest to a number of fields of technology, including catalysis, electronics, and ceramics.