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|Section2= |Section3= |Section8= }} Tetrarhodium dodecacarbonyl is the chemical compound with the formula Rh4(CO)12. This dark-red crystalline solid is the smallest stable binary rhodium carbonyl. It is used as a catalyst in organic synthesis. ==Structure, synthesis, reactions== The structure of Rh4(CO)12 is described by a tetrahedral array of four Rh atoms with nine terminal CO ligands and three bridging CO ligands. The structure can be expressed as Rh4(CO)9(µ-CO)3. It is prepared by treatment of an aqueous solution of rhodium trichloride with activated copper metal under an atmosphere of CO. :4 RhCl3(H2O)3 + 8 Cu + 22 CO → Rh4(CO)12 + 2 CO2 + 8 Cu(CO)Cl + 4 HCl + 10 H2O Alternatively, the compound can be prepared by treatment of a methanolic solution of RhCl3(H2O)3 with CO to afford H(), followed by carbonylation in the presence of sodium citrate. The cluster undergoes thermal substitution with phosphorus ligands: :Rh4(CO)12-n + n L → Rh4(CO)12-nLn + n CO 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「Tetrarhodium dodecacarbonyl」の詳細全文を読む スポンサード リンク
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