ハライドクラスター錯体を触媒とする新規反応開発《若手研究者の紹介》

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Since the first report on MoCl2 (= [Mo6Cl8]Cl2Cl4/2]) in 1859, many halide clusters have been synthesized. As high temperatures (600–1000 °C) are generally required for synthesis of the halide clusters and they are thermally quite stable, attempts to utilize them as catalysts have not yet been made. We have been studying the application of the clusters to catalysis. When halide clusters were thermally activated in a gas stream, a hydroxo ligand and a coordinatively unsaturated site developed on the metal atom. The hydroxo ligand acted as a Brønsted acid to catalyze dehydration of alcohols, ring-attachment isomerization of dialkylbenzenes and methylation of toluene. The metal atom, which accepts some electrons from the halogen ligands and can be isoelectronic with the platinum group metals, catalyzed hydrogenation of alkenes and alkynes, dehydrogenation of cyclohexene and hydrogenolysis of ethylbenzene. In this review, we report on the activities of halide cluster catalysts.

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  • CACS FORUM

    CACS FORUM 3 30-33, 2012

    埼玉大学研究機構科学分析支援センター

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