New Transition Metal Complexes and Low Dimensional Compoundswith Nitrile, Cyanide or Phosphine Ligands

通过该奖项，无机、生物无机和有机金属化学项目支持密歇根州立大学化学系的Kim R. Dunbar博士对含有较重过渡金属的化合物的合成研究。与具有特殊空间或电子性质的新型膦配体和氰化物或聚腈溶剂化的单核和双核配合物可作为合成特殊或不稳定物质的起始原料。合成的目标是含有7个d电子的铱、钯和铂单体，这些单体可能在自由基偶联反应中具有活性。此外，一些铁（II）低聚物将被合成，使用笨重的醚-膦来稳定结构。将制备钼、铼、铑、锰和钒的多核金属腈，它们可能具有不寻常的磁性或电子性质。一些只与溶剂分子结合的金属离子很容易与溶液中的其他物质反应，这些物质可以代替溶剂分子。邓巴博士能够从双核化合物开始，为各种第二和第三行过渡金属制备这样的物种。在这个项目中，她将合成含有有机磷、有机腈和氰化物配体的新型固体无机化合物。这项研究可能会导致新的途径，不寻常的材料具有有用的固态性能。＊＊＊

9311812 Dunbar With this award, the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research on synthesis of compounds containing heavier transition metals by Dr. Kim R. Dunbar of the Chemistry Department, Michigan State University. Solvated mononuclear and dinuclear complexes with new phosphine ligands possessing unusual steric or electronic properties and with cyanide or polynitrile will be used as starting materials for the synthesis of unusual or unstable species. Targeted for synthesis are monomers of iridium, palladium, and platinum which contain seven d-electrons and which might have activity in radical coupling reactions. In addition, some iron(II) oligomers will be synthesized, using bulky ether-phosphines to stabilize the structure. Polynuclear metal nitriles of molybdenum, rhenium, rhodium, manganese and vanadium which may have unusual magnetic or electronic properties will be prepared. %%% Some metal ions associated only with solvent molecules are readily available for reaction with other species in solution which are able to substitute for the solvent molecule. Dr. Dunbar is able to prepare such species for a variety of second and third row transition metals, starting from dinuclear compounds. In this project, she will synthesize new solid-state inorganic compounds containing organophosphorus, organonitrile, and cyanide ligands. This research may result in new routes to unusual materials having useful solid state properties. ***