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|Section2= |Section3= |Section7= }} ''cis''-dichlorobis(ethylenediamine)cobalt(III) chloride is a coordination complex with the formula ()Cl (en = ethylenediamine). It is a violet diamagnetic solid that is soluble in water. One chloride ion in this salt readily undergoes ion exchange but the two other chlorides are less reactive, being bound to the metal center. ==Synthesis== ''Cis''-dichlorobis(ethylenediamine)cobalt(III) chloride is obtained by heating a solution of ''trans''-()Cl e.g. using a steam bath. The trans isomer is in turn synthesized by the reaction of cobalt chloride and ethylenediamine in hydrochloric acid in the presence of oxygen: :4 CoCl2 + 8 en + 4 HCl + O2 → 4 ''trans''-()Cl + 2 H2O The initial product contains HCl, which is removed by heating. Alternatively, (carbonato)bis(ethylenediamine)cobalt (III) chloride reacts with hydrochloric acid at 10 °C to give the same species.〔Springbørg, J.; Schaffer, C.E. “Dianionobis(Ethylenediamine)Cobalt (III) Complexes” Inorganic Synthesis, 1973; volume 14, pages 63-77. 〕 :()Cl + 2 HCl → ''trans''-()Cl + CO2 + H2O 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「Cis-Dichlorobis(ethylenediamine)cobalt(III) chloride」の詳細全文を読む スポンサード リンク
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