Luminescent Molecular Ag−S Nanocluster [Ag₆₂S₁₃(SBu^t)₃₂](BF₄)₄

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 132 (50), 17678–17679, Publication Date : 2010

Author: Gen Li, Zhen Lei, and Quan-Ming Wang*

Abstract：

The first observation of luminescence from a structurally well-defined Ag2S molecular nanocluster is reported. Reaction of AgSBut/AgBF4 with N2H4 in methanol affords the tetracationic cluster [Ag62S13(SBut)32](BF4)4, which has a core−shell configuration. The 14 silver(I) centers of the [Ag14S13] core are in a face-centered cubic arrangement with each edge bridged by a S2− ligand; the core is further connected to the [Ag48(SBut)32] shell via both Ag−S bonds and Ag···Ag interactions. This novel cluster displays intense red emission in both the solid state and solution at room temperature.

http://pubs.acs.org/doi/full/10.1021/ja108684m