Conversion of an n/sup 5/-C/sub 5/H/sub 5/ complex into a cyclopentadienylidene ketene complex

Journal Article · Wed May 04 00:00:00 EDT 1983 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00347a078· OSTI ID:5438428

Casey, C P; O'Connor, J M

Transition-metal ketene complexes have been proposed as intermediates in CO reduction and have been studied as models for CO/sub 2/ metal complexes. Two types of metal n/sup 2/-ketene complexes are known: early transition metals form n/sup 2/-CO complexes while later transition metals form n/sup 2/-CC complexes. Previously, metal ketene complexes have been prepared by direct reaction of ketene with a coordinatively unsaturated metal complex, by carbonylation of metal alkylidene complexes, and by deprotonation of metal acyl complexes. It is reported that (n/sup 5/-C/sub 5/H/sub 5/)Re(CO)(NO)(CH/sub 3/) reacts with high concentrations of PMe/sub 3/ to give an n/sup 1/-C/sub 5/H/sub 5/ derivative, which is then converted to the novel cyclopentadienylidene ketene complex. This reaction further illustrates the reactivity of the normally unreactive C/sub 5/H/sub 5/ ligand.

• Research Organization: Univ. of Wisconsin, Madison
• OSTI ID: 5438428
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 105:9; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
ELEMENTS
KETENES
METALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENTS