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Bidentate Phosphine-Assisted Synthesis of an All-Alkynyl-Protected Ag74 Nanocluster.
Qu, Mei; Li, Huan; Xie, Lin-Hua; Yan, Shuai-Ting; Li, Jian-Rong; Wang, Jun-Hao; Wei, Cai-Yun; Wu, Yu-Wei; Zhang, Xian-Ming.
Affiliation
  • Qu M; Institute of Crystalline Materials, Shanxi University , Taiyuan 030006, Shanxi, China.
  • Li H; Institute of Crystalline Materials, Shanxi University , Taiyuan 030006, Shanxi, China.
  • Xie LH; Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology , Beijing 100124, China.
  • Yan ST; Institute of Crystalline Materials, Shanxi University , Taiyuan 030006, Shanxi, China.
  • Li JR; Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology , Beijing 100124, China.
  • Wang JH; Institute of Crystalline Materials, Shanxi University , Taiyuan 030006, Shanxi, China.
  • Wei CY; Institute of Crystalline Materials, Shanxi University , Taiyuan 030006, Shanxi, China.
  • Wu YW; Institute of Crystalline Materials, Shanxi University , Taiyuan 030006, Shanxi, China.
  • Zhang XM; Institute of Crystalline Materials, Shanxi University , Taiyuan 030006, Shanxi, China.
J Am Chem Soc ; 139(36): 12346-12349, 2017 09 13.
Article in En | MEDLINE | ID: mdl-28837326
ABSTRACT
Determining the total structure of metal nanoparticles is vital to understand their properties. In this work, the first all-alkynyl-protected Ag nanocluster, Ag74(C≡CPh)44, was synthesized and structurally characterized by single crystal diffraction. Ag atoms are arranged in a Ag4@Ag22@Ag48 three shell structure and all 44 phenylethynyl ligands coordinated with Ag in a µ3 mode. In spite of being absent in nanocluster, 31P NMR study reveals that bidentate phosphine first reacts with Ag(I) to form a dinuclear complex, from which Ag atoms are then released to phenylethynyl ligands. This phosphine mediated strategy may find general application in synthesis of alkynyl-protected Ag nanoclusters.

Full text: 1 Database: MEDLINE Language: En Journal: J Am Chem Soc Year: 2017 Type: Article Affiliation country: China

Full text: 1 Database: MEDLINE Language: En Journal: J Am Chem Soc Year: 2017 Type: Article Affiliation country: China