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|Section2= |Section3= |Section7= }} Molybdenum tetrachloride is the inorganic compound with the empirical formula MoCl4. The material exists as two polymorphs, a polymeric ("α") and a hexameric ("β") structures, although neither form is soluble in any solvent without degradation. In each polymorph, the Mo center is octahedral with two terminal chloride ligands and four doubly bridging ligands.〔Ulrich Müller "Hexameric Molybdenum Tetrachloride" Angewandte Chemie International Edition in English 1981, Volume 20, Pages 692 - 693. 〕 It can be prepared from by dechlorination of molybdenum pentachloride using tetrachloroethene:〔E. L. Mccann III, T. M. Brown "Molybpenum(IV) Chloride" Inorganic Syntheses 1970, volume 12, pages 181-186. 〕 : 2 MoCl5 + C2Cl4 → 2 MoCl4 + C2Cl6 The acetonitrile adduct, which is a versatile intermediate, can be prepared directly from the pentachloride:〔Jonathan R. Dilworth, Raymond L. Richards "The Synthesis of Molybdenum and Tungsten Dinitrogen Complexes" Inorganic Syntheses 1990, volume 28, pages 33-43. 〕 : 2 MoCl5 + 5 CH3CN → 2 MoCl4(CH3CN)2 + ClCH2CN + HCl The MeCN ligands can be exchanged with other ligands: : MoCl4(CH3CN)2 + 2 THF → MoCl4(THF)2 + 2 CH3CN ==References== 〔 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「Molybdenum tetrachloride」の詳細全文を読む スポンサード リンク
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