Department of Chemistry, Anhui University , Hefei, Anhui 230601, P. R. China.
J Am Chem Soc. 2014 Feb 26;136(8):2963-5. doi: 10.1021/ja4131142. Epub 2014 Feb 18.
We report the X-ray structure of a selenolate-capped Au24(SeR)20 nanocluster (R = C6H5). It exhibits a prolate Au8 kernel, which can be viewed as two tetrahedral Au4 units cross-joined together without sharing any Au atoms. The kernel is protected by two trimeric Au3(SeR)4 staple-like motifs as well as two pentameric Au5(SeR)6 staple motifs. Compared to the reported gold-thiolate nanocluster structures, the features of the Au8 kernel and pentameric Au5(SeR)6 staple motif are unprecedented and provide a structural basis for understanding the gold-selenolate nanoclusters.
我们报告了一个硒醇帽 Au24(SeR)20 纳米团簇（R = C6H5）的 X 射线结构。它表现出一个拉长的 Au8 核，它可以被看作是两个没有共享任何 Au 原子的四面体 Au4 单元交叉连接在一起。内核由两个三聚体 Au3(SeR)4 订书钉状基元和两个五聚体 Au5(SeR)6 订书钉基元保护。与报道的金-硫醇纳米团簇结构相比，Au8 核和五聚体 Au5(SeR)6 订书钉基元的特征是前所未有的，为理解金-硒醇纳米团簇提供了结构基础。
