Carbonyl Derivatives of Titanium, Zirconium, and Hafnium

David J. Sikora, David W. Macomber, Marvin D. Rausch

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Abstract

This chapter discusses the carbonyl derivatives of titanium, zirconium, and hafnium. The synthesis and reactivity of the group 4B (Ti, Zr, Hf) metal carbonyls have developed relatively slowly. In contrast to the vast number of mono- and multinuclear binary carbonyl complexes of the transition metals, no isolable binary carbonyls of titanium, zirconium, or hafnium have been reported. While the majority of group 4B metal–carbonyl complexes contain π-bonded hydrocarbon ligands, most notably η-cyclopentadienyl, recent studies by Wreford and coworkers have led to the identification and isolation of three novel phosphine-stabilized titanium carbonyl complexes. The first phosphine-substituted derivatives of CP2Hi (CO)2 were reported by Rausch and coworkers in 1979 and were prepared photochemically, similarly to the zirconium congeners. Only two carbonyl complexes of group 4B have been reported that contain π-bonded acyclic hydrocarbon ligands that are not metallocenes. Mono (η-cyclopentadienyl) carbonyl complexes of Ti, Zr, and Hf have been noted only in the patent literature.

Original languageEnglish (US)
Pages (from-to)317-379
Number of pages63
JournalAdvances in Organometallic Chemistry
Volume25
Issue numberC
DOIs
StatePublished - Jan 1 1986

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phosphine
Hafnium
Titanium
Derivatives
Acyclic Hydrocarbons
Ligands
Organometallics
Carbon Monoxide
Hydrocarbons
Transition metals
Metals

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Carbonyl Derivatives of Titanium, Zirconium, and Hafnium. / Sikora, David J.; Macomber, David W.; Rausch, Marvin D.

In: Advances in Organometallic Chemistry, Vol. 25, No. C, 01.01.1986, p. 317-379.

Research output: Contribution to journalArticle

Sikora, David J. ; Macomber, David W. ; Rausch, Marvin D. / Carbonyl Derivatives of Titanium, Zirconium, and Hafnium. In: Advances in Organometallic Chemistry. 1986 ; Vol. 25, No. C. pp. 317-379.
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