Chemistry of Free Atoms and Reactive Clusters/Particles

自由原子和原子团将被用作质子， 催化剂的 有机和无机化学品将被允许 与前过渡金属原子相互作用， 捕获中间体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，并且这些溶剂化的金属原子将用于 制备新的纳米分子簇和纳米金属 和微粒。 这种低温生长 颗粒应该产生不寻常的形态， 层状结构到均匀固溶体。 EXAFS，XPS， XRD、穆斯堡尔谱、化学和催化探针反应将 用于表征。 薄膜的类似研究 由溶剂化的金属原子和簇产生的， 此外，为了了解影响 粘连 将此方法扩展到电介质 材料也将尝试。 %%% 在这个项目中，无机，生物无机和有机- 化学部金属计划，肯尼思J。 堪萨斯州立大学的克拉本德将继续研究 自由原子和原子团的化学。 材料 可以通过该方法制备的化合物包括有用的有机- 金属试剂，双金属簇，薄膜，和 介电材料 这项研究的结果是 潜在的直接利益的一些领域， 技术，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.