【摘 要】
：
对原子精确的金纳米团簇的物理、化学性质研究,揭示出团簇的前线分子轨道与其理化性质间的量子化学规律,基于结构认识金纳米团簇的催化性能,将有利于在分子和原子水平探讨催
【机 构】
：
安徽大学化学化工学院,安徽省合肥市蜀山区九龙路111号,230601
论文部分内容阅读
对原子精确的金纳米团簇的物理、化学性质研究,揭示出团簇的前线分子轨道与其理化性质间的量子化学规律,基于结构认识金纳米团簇的催化性能,将有利于在分子和原子水平探讨催化反应机理,设计合成新型高选择性、高活性的催化剂.最近,我们小组对金纳米催化有机反应的本质进行了一些有益的探索,较系统地研究了Au25(SCH2CH2Ph) 18TOA+与有机氧化剂2,2,6,6-四甲基哌啶氧铵盐(Fig.1a)、吩噻嗪四氯苯醌复合物(Fig.1b)间的单电子转移反应;以Au25-作为电子转移催化剂,通过分子内串联反应,催化2-硝基苯甲腈合成得到2-氨基苯甲酰胺(Fig.1c);将超细的金纳米团簇负载到介孔氧化铈上,催化还原硝基苯得到氧化偶氮苯(Fig.1d).应用CV、ESR、UV-vis、NMR等手段对这些反应的机理进行了探讨.
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