Preparation and Reaction Chemistry of Trimethylsilyl Derivatives of Niobium. Redox Chemistry of (eta-C5H5)2Nb(SiMe3)CI and X-ray Structures of (eta5-C5H5)2NB(SiMe3)(eta2-C2H4) and (eta5-C5H5)2NB(CH2SiMe3)CI PF6

摘要

Early-transition-metal silyl chemistry is a rather undeveloped field that shows promise for providing unusual and useful transformations in organosilicon and transition-metal compounds. Early-transition-metal silyl compounds may also serve as organometallic precursors to advanced materials such as refractory metal silicides (e.g.m TiSi2, NbSi2, TaSix, and WSi2), which are used in integrated-circuit technology. A broader applications of this chemistry must be preceded by a better understanding of reactivity and bonding in these silyl derivatives.