Spectroscopic Investigations of M(CO)₅-C₆₀ (M = W, MO) Complexes: Precursors for Metal Fullerides

12 Chromium, molybdenum and tungsten

“…52 Photochemical reactions of M(CO) 6 (M Mo, W) with C 60 yield the Z 2 -complexes [M(CO) 5 C 60 ] which can then be decomposed either photochemically or thermally to give metal fullerides. A high temperature IR study of [W(CO) 5 C 60 ] reveals a sequential elimination of carbonyl groups to give C 60 W. 53 The anion [Mo(CO) 3 Cp] À reacts with a range of allenic electrophiles to produce Z 3 -2-alkylidenecyclobutanoyl complexes. Three of these, including 5, have been characterised by X-ray crystallography.…”