Use of Silylarsines to Prepare Gallium-Arsenic Compounds

摘要

A number of gallium arsenic compounds/systems have been realized by applying thegeneral method of synthesis referred to as dehalosilylation between a silylarsine and a halogallane. Among those prepared are bis and tris(arsino)gallanes, with one of the latter being isolated as the monomer, a compound containing a single Ga3As unit, and compounds containing rings with arsenic, halogen mixed-bridging of gallium centers. Also, this method has been utilized to prepare gallium arsenide. The methodologies developed in these studies are currently being applied to the synthesis of additional new gallium arsenic compounds/systems, and they are finding much practicality in the synthesis of other related III-V species. For example, we have recently isolated and characterized the indium-arsenic compound, as well as its phosphorus analog. The fact that these two indium compounds can be prepared adds credence to our suggestion that mixed-bridge compounds may be common species in the area of chemistry involving the heavier elements of Groups III and V.