Concentration- and Solvation-Induced Reversible Structural Transformation and Assembly of Polynuclear Gold(I) Sulfido Complexes

Concentration- and Solvation-Induced Reversible Structural Transformation and Assembly of Polynuclear Gold(I) Sulfido Complexes

A series of polynuclear gold­(I) sulfido complexes of bis­(diphenylphosphino)­amine ligands has been synthesized and characterized. A rather small variation in the conformation of the bis­(diphenylphosphino)­amine ligands has led to distinct differences in the identity of the polynuclear gold­(I) su...

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Veröffentlicht in:Journal of the American Chemical Society 2020-07, Vol.142 (26), p.11560-11568
Hauptverfasser: Yan, Liang-Liang, Yao, Liao-Yuan, Yam, Vivian Wing-Wah
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container_title Journal of the American Chemical Society
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creator Yan, Liang-Liang
Yao, Liao-Yuan
Yam, Vivian Wing-Wah
description A series of polynuclear gold­(I) sulfido complexes of bis­(diphenylphosphino)­amine ligands has been synthesized and characterized. A rather small variation in the conformation of the bis­(diphenylphosphino)­amine ligands has led to distinct differences in the identity of the polynuclear gold­(I) sulfido complexes formed. Unprecedented concentration-dependent and solvation-dependent reversible cluster-to-cluster transformation between a dodecanuclear gold­(I) sulfido complex (L Me -Au 12 ) and a hexanuclear gold­(I) sulfido complex (L Me -Au 6 ) has been observed. The transformation process has been monitored not only by 1H and 31P­{1H} NMR spectroscopy but also by UV–vis absorption spectroscopy and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) in the solution state. This work has provided a simple approach to achieve structure modulation of gold­(I) sulfido complexes and an understanding of supramolecular transformations via external stimuli.
doi_str_mv 10.1021/jacs.0c04677
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title Concentration- and Solvation-Induced Reversible Structural Transformation and Assembly of Polynuclear Gold(I) Sulfido Complexes
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