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|Section2= |Section3= |Section4= |Section7= |Section8= }} Cobaltocene, known also as bis(cyclopentadienyl)cobalt(II) or even "bis Cp cobalt", is an organocobalt compound with the formula Co(C5H5)2. It is a dark purple solid that sublimes readily slightly above room temperature. Cobaltocene was discovered shortly after ferrocene, the first metallocene. Due to the ease with which it reacts with O2, the compound must be handled and stored using air-free techniques. ==Synthesis== Cobaltocene is prepared by the reaction of sodium cyclopentadienide (NaC5H5) with anhydrous cobalt(II) chloride in THF solution. Sodium chloride is cogenerated, and the organometallic product is usually purified by vacuum sublimation.〔King, R. B. “Organometallic Syntheses” Volume 1: Academic Press: New York, 1965.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「cobaltocene」の詳細全文を読む スポンサード リンク
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