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- Title
A Near-Infrared-Emissive Alkynyl-Protected Au<sub>24</sub> Nanocluster.
- Authors
Wan, Xian ‐ Kai; Xu, Wen Wu; Yuan, Shang ‐ Fu; Gao, Yi; Zeng, Xiao ‐ Cheng; Wang, Quan ‐ Ming
- Abstract
An alkynyl-protected gold nanocluster [Au24(CCPh)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 Au22 core that is made of two Au13-centered cuboctahedra that share a square face. Two staple-like PhCCAuCCPh motifs are located around the center of the rod-like Au22 core. This Au24 nanocluster is highly emissive in the near-infrared region with λmax=925 nm and the nature of the HOMO-LUMO transition is investigated by time-dependent DFT calculations.
- Subjects
GOLD clusters; NEAR infrared radiation; CHEMICAL reduction; X-ray diffraction; MOLECULAR structure; THIOLATES; PHOSPHINE
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 33, p9819
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201503893