A Near‐Infrared‐Emissive Alkynyl‐Protected Au24 Nanocluster1. (26th June 2015)

• Record Type: Journal Article
• Authors: Wan, Xian‐Kai; Xu, Wen Wu; Yuan, Shang‐Fu; Gao, Yi; Zeng, Xiao‐Cheng; Wang, Quan‐Ming
• Is Part Of: Angewandte Chemie. Volume 127:Number 33(2015)
• Page Start: 9819
• Page End: 9822
• Publication Date: 2015-06-26
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201503893
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>An alkynyl‐protected gold nanocluster [Au₂₄(CCPh)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 PhCCAuCCPh motifs are located around the center of the rod‐like Au₂₂ core. This Au₂₄ nanocluster is highly emissive in the near‐infrared region with <italic>λ</italic>_max=925 nm and the nature of the HOMO–LUMO transition is investigated by time‐dependent DFT calculations.</p> </abstract>