Cobalt Carbonyl (Stabilized with 1-5% Hexane)
10210-68-1[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[Co+2].[Co+2]MQIKJSYMMJWAMP-UHFFFAOYSA-NSee also: Tetracobalt dodecacarbonyl (annotation moved to); Dicobalt Octacarbonyl (annotation moved to).
10210-68-1Cobalt carbonyl is a pyrophoric (spontaneously flammable in air), red-orange (when pure) to dark-brown crystalline solid.
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용도Cobalt carbonyl [Co2(CO)8] is commonly used as a catalyst in the hydroformylation (oxo reaction) of alkenes.Along with pyridine, it can be used as a catalyst in the carboxylation of alkenes into corresponding acids and esters.It is employed as a key precursor in the preparation of cobalt platinum (CoPt3), cobalt sulfide (Co3S4) and cobalt selenide (CoSe2) nanocrystals.It is also used as a reagent in Pauson-Khand cyclizations and Nicholas reaction.
Cobalt octacarbonyl is prepared by the reaction of finely divided cobalt with carbon monoxide under pressure: 2Co + 8CO → Co2(CO)8 The compound may be prepared in a similar way from cobalt(II) iodide. Also, it may be prepared by thermal decomposition of cobalt carbonyl hydride: 2HCo(CO)4 → Co2(CO)8 + H2
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