Low-temperature carbon-chlorine bond activation by bimetallic gold/palladium alloy nanoclusters: An application to Ullmann coupling

• Main Authors: Raghu Nath Dhital, Choavarit Kamonsatikul, Ekasith Somsook, Karan Bobuatong, Masahiro Ehara, Sangita Karanjit, Hidehiro Sakurai
• Other Authors: Sokendai Graduate University for Advanced Studies
• Format: Article
• Published: 2018
• Subjects: Biochemistry, Genetics and Molecular Biology; Chemical Engineering; Chemistry
• Online Access: https://repository.li.mahidol.ac.th/handle/123456789/13543
• Institution: Mahidol University

This paper describes the unique catalytic activity of bimetallic Au/Pd alloy nanoclusters (NCs) for Ullmann coupling of chloroarenes in aqueous media at low temperature. The corresponding reaction cannot be achieved by monometallic Au and Pd NCs as well as their physical mixtures. On the basis of quantum chemical calculation, it was found that the crucial step to govern the unusual catalytic activity of Au/Pd is the dissociative chemisorption of ArCl, which is unlikely in the monometallic Au and Pd NCs. © 2012 American Chemical Society.