Oxometal Complexes and Hydrocarbon Functionalization

Craig A. Hill博士，埃默里大学化学系，由化学系无机、生物无机和有机金属化学项目支持，研究开发杂多金属氧酸盐（HPOM）作为均相催化剂。氧化从HPOM到烷烃的转移将得到发展，因为它对任何涉及氧化功能化的过程都至关重要。对环境有利的双氧水催化氧化HPOM的影响因素进行了评价。由于催化剂通常具有有限的使用寿命，因此将寻求新的系统来修复它们在运行过程中出现的缺陷。最后，HPOM诱导非活性物质（如金刚石表面）发生反应和催化氧化硫化氢的能力将被确定。氧化反应在化学的许多领域都是非常普遍和重要的。在工业规模上，它们经常受到环境问题的困扰，因为它们使用或生产有毒的、可能污染的物质。本项目将开发一种新型的环保催化剂。我们将评估它们发挥作用的基本方式，这些知识将用于设计非反应性材料的氧化过程，以及将有毒的硫化氢转化为硫的过程。

9412465 Hill Emory University Dr. Craig A. Hill, Chemistry Department, Emory University, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division for research into the development of heteropolyoxometallates (HPOM) as homogeneous catalysts. The transfer of oxide from an HPOM to alkanes will be developed because of its central importance to any process which involves oxidative functionalization. The factors which influence HPOM catalyzed oxidation using the environmentally advantageous hydrogen peroxide will be evaluated. As catalysts normally have a finite lifetime, new systems will be sought which will heal defects which occur in them as they operate. Finally, the ability of HPOM's to induce reactions of very unreactive materials such as diamond surfaces and to catalytically oxidize hydrogen sulfide will be determined. Oxidation reactions are very common and important in many areas of chemistry. On the industrial scale they are often plagued by environmental problems because they either use or produce toxic, potentially polluting substances. In this project a new class of environmentally benign catalysts will be developed. The basic way in which they function will be assessed and this knowledge will be used to design processes for oxidations of very non-reactive materials and for the conversion of toxic hydrogen sulfide into sulfur.