Multiple Bonds Between Metal Atoms. Studies of Synthesis, Substitutional Behavior, Reactivity, Electronic Structure and Macromolecular Chemistry

无机化学、生物无机化学和金属有机化学项目的这一奖项支持印第安纳大学化学系的马尔科姆·H·奇泽姆博士对含有金属-金属多键化合物的研究。将开展五个方面的研究：(1)新的双核化合物的合成及其在合成同核和异金属簇合物中的阐述；(2)阐明这些化合物的取代反应的详细机理，以确定总体趋势；(3)探索C-X多键和M-M多键之间的多氧化还原反应的机理和用途；(4)合成共价连接的双核配合物二聚体，并研究它们的物理化学性质，以及作为高级齐聚物和聚合物的模型的小齐聚物；以及(5)有序组装体(如一维聚合物、液晶相和单晶)中M-M多键的制备和性质与其电子转移和非线性光学响应的各向异性性质的关系。金属阵列作为团簇和链具有有用的电、磁和光学性质，在催化中也是重要的。这项基础性研究将系统地探索新阵列的合成及其性质。学生将有机会学习广泛的合成和物理方法，并将他们的研究延伸到材料研究领域。

This award in the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research on compounds containing metal-metal multiple bonds by Dr. Malcolm H. Chisholm of the Chemistry Department, Indiana University. Five areas of investigation will be carried out: (1) synthesis of new dinuclear compounds and their elaboration in synthesis of homonuclear and heterometallic cluster compounds; (2) elucidation of the detailed mechanisms of substitution reactions of these compounds in order to establish general trends; (3) exploration of mechanisms and utility of multiredox reactions between C-X multiple bonds and M-M multiple bonds; (4) synthesis of covalently linked dimers of dinuclear complexes and the study of their physicochemical properties together with small oligomers as models for higher oligomers and polymers; and (5) the preparation and investigation of the properties of M-M multiple bonds in ordered assemblies (such as 1-D polymers, liquid crystalline phases and single crystals) with respect to their anisotropic properties of electron transfer and non-linear optical responses.Metal arrays as clusters and chains have useful electronic, magnetic, and optical properties and are also important in catalysis. This fundamental investigation will explore the synthesis of new arrays and their properties in a systematic way. Students will have opportunities to learn a broad range of synthetic and physical methods and to extend their studies into materials research.