Au20 Nanocluster Protected by Hemilabile Phosphines
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https://figshare.com/articles/dataset/Au_sub_20_sub_Nanocluster_Protected_by_Hemilabile_Phosphines/2487466
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A novel phosphine-protected Au20 nanocluster was isolated through the reduction of Au(PPhpy2)Cl by NaBH4 (PPhpy2 = bis(2-pyridyl)-phenylphosphine). Its composition was determined to be [Au20(PPhpy2)10Cl4]Cl2, and single crystal X-ray structural analysis revealed that the Au20 core can be viewed as being generated from the fusion of two Au11 clusters via sharing two vertices. Optical absorption spectroscopy indicated this Au20 has a large HOMO–LUMO gap (Eg ≈ 2.24 eV). This is the first example of a ligand-protected gold nanocluster with a core generated from incomplete icosahedral Au11 building units.
创建时间：
2016-02-20
