A Near-Infrared-Emissive Alkynyl-Protected Au24 Nanocluster

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Xian-Kai Wan
  • Wen Wu Xu
  • Shang-Fu Yuan
  • Yi Gao
  • Quan-Ming Wang

Detail(s)

Original languageEnglish
Pages (from-to)9683-9686
Journal / PublicationAngewandte Chemie - International Edition
Volume54
Issue number33
Publication statusPublished - 1 Aug 2015
Externally publishedYes

Abstract

An alkynyl-protected gold nanocluster [Au24(CΞCPh)14(PPh3)4](SbF6)2 has been prepared by a direct reduction method. Single-crystal X-ray diffraction reveals that the molecular structure contains a Au22core that is made of two Au13-centered cuboctahedra that share a square face. Two staple-like PhCΞCAuCΞCPh motifs are located around the center of the rod-like Au22core. This Au24 nanocluster is highly emissive in the near-infrared region with λmax=925nm and the nature of the HOMO-LUMO transition is investigated by time-dependent DFT calculations. Good as gold: An alkynyl-protected gold nanocluster [Au24(CΞCPh)14(PPh3)4](SbF6)2 is reported which contains a Au22core composed of two Au13 centered cuboctahedra that share a square face. Two staple-like PhCCAuCCPh motifs are located around the center of the rod-like Au22core. The Au24 nanocluster is highly emissive in the near-infrared region (λmax=925nm). Atom colors: Au=orange; C=gray.

Research Area(s)

  • alkyne ligands, cluster compounds, DFT calculations, gold, photophysics

Bibliographic Note

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Citation Format(s)

A Near-Infrared-Emissive Alkynyl-Protected Au24 Nanocluster. / Wan, Xian-Kai; Xu, Wen Wu; Yuan, Shang-Fu et al.
In: Angewandte Chemie - International Edition, Vol. 54, No. 33, 01.08.2015, p. 9683-9686.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review