Four novel Z-shaped hexanuclear vanadium oxide clusters as efficient heterogeneous catalysts for cycloaddition of CO_(2) and oxidative desulfurization reactions  

作　　者：Jilei Wang Jiapeng Cao Zeyu Du Xiaomei Liu Jianian Li Qingdong Ping Tingting Zang Yan Xu 

机构地区：[1]College of Chemical Engineering,State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing Tech University,Nanjing 211800,China [2]Coordination Chemistry Institute,State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing 210093,China

出　　处：《Chinese Chemical Letters》2023年第1期478-482,共5页中国化学快报（英文版）

基　　金：supported by Natural Science Foundation of Jiangsu (No. BK20191359);the Natural Science Foundation of China (No. 21571103);the Postgraduate Research & Practice Innovation Program of Jiangsu Province (No. KYCX22_1343)。

摘　　要：Chemical fixation of CO_(2)into C1 source, as a general approach, can effectively alleviate the emission of greenhouse gasses. Whereas, the challenge posed by the need for efficient catalysts with high catalytic active sites still exists. In this work, we reported a series of new hexavanadate clusters, [(C6H6ON)2(C2H8N2)2(CH3O)6VIV6O8](V6–1), [(C6H6ON)2(C3H10N2)2(CH3O)6VIV6O8](V6–2), [(C6H6ON)2(C6H14N2)2(CH3O)6VIV6O8](V6–3) and [(C6H6ON)2(C4H11N2O)2(CH3O)4VIV6O8](V6–4), assembled by 2-aminophenol and four different kinds of Lewis bases(LB), ethanediamine(en), 1,2-diaminopropane, 1,2-cyclohexanediamine and N-(2-hydroxyethyl)ethylenediamine(ben) together. Among them, the basic unit {V6} cluster featured Z-shaped configuration represents a brand-new example of hexanuclear vanadium clusters. Remarkably, the catalytic tests demonstrated that V6–1 as catalyst displays high catalytic activity in the cycloaddition for the CO_(2)fixation into cyclic carbonates by virtue of open V sites. As expected, for oxidative desulfurization of sulfides, V6–1 also exhibits satisfied catalytic effectiveness. Furthermore, the recycling test confirmed that catalyst V6–1 may be a bifunctional heterogeneous catalyst with great promise for both CO_(2)cycloaddition and oxidative desulfurization reactions.

关 键 词：Z-shaped Hexavanadate cluster Lewis acid catalyst Cycloaddition of CO_(2) Oxidative desulfurization 

分 类 号：O643.36[理学—物理化学]