NSF Young Investigator: Metal Silicides and Catalytic Formation Polysilanes

美国国家科学基金会无机、生物无机和有机金属化学项目青年研究员奖支持美国田纳西大学诺克斯维尔分校化学系薛子玲博士对金属硅化物的研究。重点研究了两个方面：金属硅化物和聚硅烷的合成路线的发展和固态有机金属反应机理的研究。关于第一个主题，将制备不含环戊二烯或类似配体的早期过渡金属硅基配合物；这种化合物已知的很少。这些化合物将用于开发金属硅化物和聚硅烷的新途径，这对电子器件很有用。四氢硅烷也将在化学气相沉积条件下用于形成金属硅化物。在第二个领域，烷基化合物与膦的固气反应将被研究。研究将集中在反应过程中影响固相结构保留的因素。来自橡树岭国家实验室的仪器将用于一些结构测定。本研究对多相催化剂的合成具有指导意义。

This NSF Young Investigator award in the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research on metal silicides by Dr. Ziling B. Xue of the Chemistry Department, University of Tennessee at Knoxville. Two areas are emphasized: development of synthetic routes to metal silicides and polysilanes, and investigation of the mechanism of solid state organometallic reactions. On the first topic, early transition metal silyl complexes which do not contain cyclopentadiene or analogous ligands will be prepared; very few compounds of this type are known. These compounds will be used to develop a new route to metal silicides and polysilanes, which are useful for electronic devices. Tetrahydrosilane will also be used to form metal silicides under chemical vapor deposition conditions. In the second area, solid-gas reactions of alkyl compounds with phosphines will be studied. Research will focus on the factors affecting retention of solid state structure during reaction. Instrumentation from Oak Ridge National Laboratory will be used for some of the structural determinations. This work has implications for synthesis of heterogeneous catalysts.