Synthesis and Reactions of η⁵‐Cyclopentadienylbis(ethene)cobalt

Abstract

The complete manuscript of this communication appears in: Angew. Chem. Suppl. 1983, 1005. DOI:

Cobalt(I) Olefin Complexes: Precursors for Metal–Organic Chemical Vapor Deposition of High Purity Cobalt Metal Thin Films

“…For this reason, an alternative large-scale preparative method of production was sought: Using a modification of the procedure used to produce the Jonas reagent [CpCo(H 2 CCH 2 ) 2 ], 34 we were able to synthesize complexes 1−6 in high yield without the need to utilize the gaseous reagent ethene or trimethylsilylethene 35 (Method B: Scheme 1). However, because difficulties encountered in the large-scale production of bis-methyl-cyclopentadienyl cobalt (dimethyl-cobaltocene) complexes 7−11 were produced, exclusively, using Method A and sodium methyl-cyclopentadienide (NaCpMe).…”

Reactivity of Carboranylacetylenes towards Cobalt Complexes

“…Melting points (uncorrected) were obtained with a Büchi apparatus, using capillaries that were filled under nitrogen and sealed. The nido-carboranes 1, [19] 2a,d,e, [14] 3a, [14] 6, [14] and CpCo(C 2 H 4 ) 2 [20] were prepared according to literature procedures. CpCo(CO) 2 was purchased from Aldrich ® .…”

Theoretical study of formation of pyridines by interaction of a cobaltacyclopentadiene with model nitriles (hydrogen cyanide or trifluoroacetonitrile): Electronic effects of nitriles on the reaction mechanism

“…The electronic structure and binding energy for the 2-methylpyridine analog, CpCo(h 6 -2-methylpyridine), was discussed in detail [56]. Jonas et al have reported that trimerization of 2-butyne catalyzed by a Co complex affords paramagnetic 20-electron CpCo(h 6 -C 6 Me 6 ), that is electronically similar to 5aT [86].…”