A mechanistic study of cycloaddition of carbon dioxide to propyne over supported Rh<sub>4</sub> and Fex Rhy carbonyl cluster derived catalysts期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

按检索

A mechanistic study of cycloaddition of carbon dioxide to propyne over supported Rh₄ and Fex Rhy carbonyl cluster derived catalysts

Authors:	S Muthukumaru Pillai R Ohnishi and M Ichikawa

Institution:	(1) Research Centre, Indian Petrochemicals Corporation Ltd., 391 346 Baroda, India;(2) Catalysis Research Centre, Hokkaido University, 60 Sapporo, Japan

Abstract:	CO₂ undergoes cycloaddition to propyne on a cationic rhodium site with the assistance of O^2–/OH^– of support or iron oxide over Rh₄ and Fex Rhy carbonyl clusterderived catalysts.¹³CO₁₂ labeling and FTIR studies suggest that monodentate carbonate formed on the catalyst surface is most likely a key species to offer an active CO₂ to be converted into a carbonyl intermediate prior to the product 4,6-dimethyl-2-pyrone. CO₂ O^2–/OH Rh₄ Fex Rhy. ¹³CO₂ , CO₂ , 4,6--2-.

Keywords:
本文献已被 SpringerLink 等数据库收录！