Elimination stabilized alkyls. Part I. Chromium, molybdenum, tungsten, and vanadium

Abstract

The interaction of chlorides of V, Cr, Mo, and W with the lithium or Grignard reagents derived from chloromethyltrimethylsilane produces thermally stable alkyls of formula V(CH₂SiMe₃)₄, VO(CH₂SiMe₃)₃, Cr(CH₂SiMe₃)₄, and M₂(CH₂SiMe₃)₆(M = Mo or W). The compounds have been investigated, where feasible, by i.r., Raman, electronic, e.s.r., and n.m.r. spectroscopy and the various spectral assignments are discussed in terms of proposed structures for the compounds.