Crystal structure of selenolate-protected Au24(SeR)20 nanocluster

Yongbo Song; Shuxin Wang; Jun Zhang; Xi Kang; Shuang Chen; Peng Li; Hongting Sheng; Manzhou Zhu

doi:10.1021/ja4131142

Crystal structure of selenolate-protected Au24(SeR)20 nanocluster

J Am Chem Soc. 2014 Feb 26;136(8):2963-5. doi: 10.1021/ja4131142. Epub 2014 Feb 18.

Authors

Yongbo Song¹, Shuxin Wang, Jun Zhang, Xi Kang, Shuang Chen, Peng Li, Hongting Sheng, Manzhou Zhu

Affiliation

¹ Department of Chemistry, Anhui University , Hefei, Anhui 230601, P. R. China.

PMID: 24547879
DOI: 10.1021/ja4131142

Abstract

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.