Organoimido functionalized trinuclear gold(Ⅰ) clusters with fluorescent chromophore

• 作者: Chun-Lin Lv Chen-Huai Yang Li-Ya Liu Zhi-Cheng Zhang
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: EMERGING TECHNOLOGIES FOR MATERIALS DESIGN AND CHARACTERIZATION IN ELECTROCHEMICAL REACTION
• 页码范围: 1437-1442
• 页数: 6页
• 语种: 英文

摘要

The post-functionalization of gold nanoclusters with organic molecules into organic-inorganic hybrid functional materials is an efficient approach to develop multifunctional materials.By introducing 1-pyrenamine and 3-aminofluoranthene into[O(AuPPh3)3][BF4]with a covalent bond,two novel organoimido functionalized trinuclear gold nanoclusters[C16H9N(AuPPh3)3][BF4](Au3-P) and[C6H4-C10HsN(AuPPh3)3][BF4](Au3-F)have been successfully obtained.Their structures have been determined by electrospray ionization mass spec-troscopy (ESI-MS) and single-crystal X-ray diffraction(SC-XRD),and the photoluminescence properties have been investigated from both experimental and theoretical aspects.It is found that the lowest-energy electronic tran-sitions in the ultraviolet-visible (UV-Vis) absorption spectra of Au3-P (403 nm) and Au3-F (425 nm) exhibit a slight bathochromic shift compared to the corresponding transitions in the spectra of 1-pyrenamine and 3-aminofluoranthene,respectively.In addition,the dichloromethane solutions of Au3-P and Au3-F complexes clearly display blue and yellowish-green fluorescence,respectively.These results will help to design and prepare organic-inorganic nanocluster hybrid luminescent materi-als for potential applications in (bio)sensors,bioimaging and optoelectronic devices.