Addition
Reaction-Induced Cluster-to-Cluster Transformation:
Controlled Self-Assembly of Luminescent Polynuclear Gold(I) μ<sub>3</sub>‑Sulfido Clusters
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Abstract
Unprecedented
addition reaction-induced gold(I) cluster-to-cluster
transformation has been observed in the present work. Reaction of
the chlorogold(I) precursor, [vdpp(AuCl)<sub>2</sub>] (vdpp = vinylidenebis(diphenylphosphine))
containing the diphosphine with unsaturated CC bond, with
H<sub>2</sub>S resulted in a series of polynuclear gold(I) μ<sub>3</sub>-sulfido clusters bearing Au(I)···Au(I) interactions;
the identities of which have been fully characterized by NMR, electrospray-ionization
mass spectrometry, elemental analysis, and single crystal X-ray diffraction
analysis. Diverse research methods, including UV–vis absorption, <sup>1</sup>H NMR, and <sup>31</sup>P NMR spectroscopy, were employed
to detect and monitor the transformation and assembly processes. Supported
by single crystal structures, the existence of Au(I)···Au(I)
bonding interactions sustains the diverse array of sophisticated polynuclear
cluster structures and endues them with rich luminescence features
