An unprecedented luminescent polynuclear gold(I) μ(3)-sulfido cluster with a thiacrown-like architecture.
An unprecedented Au(18) thiacrown directed by Au(I)···Au(I) interactions and supported by tridentate phosphine (dpepp) and μ(3)-sulfido ligands that highly resembles the 18-membered thiacrown ether [18]aneS(6) in appearance has been synthesized. The sulfides of the Au(3)(μ(3)-S) units in the central cavity point toward each other and are located on the same plane, allowing them to bind the soft Ag(+) ion with immediate and pronounced spectroscopic changes. Reversible binding and spectroscopic changes can be readily achieved upon addition of CH(3)CN without disruption of the Au(18) macrocycle.
Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China.
Terence Kwok-Ming
TK
Lee
Nianyong
N
Zhu
Vivian Wing-Wah
VW
Yam