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Acid-Base-Triggered Structural Transformation of a Polyoxometalate Core Inside a Dodecahedrane-like Silver Thiolate Shell

Acid-Base-Triggered Structural Transformation of a Polyoxometalate Core Inside a Dodecahedrane-like Silver Thiolate Shell

Hong Liu, Chao-Yu Song, Ren-Wu Huang, Yu Zhang, Hong Xu, Mei-Jia Li, Shuang-Quan Zang, Guang-Gang Gao

Angew Chem Int Ed Engl. 2016 Mar 7;55(11):3699-703.

PMID: 26879840

Abstract:

Self-assembly of metavanadate and organosilver(I) salts leads to a novel dodecahedrane-like [Ag30 ((t) BuS)20 ](10+) silver(I) thiolate nanocage that tightly wraps an unusual C2h polyoxovanadate anion. The polyoxovanadate core undergoes transformation to a D3d configuration upon acidification, and reverts back to its original C2h structure upon addition of base. Chromism was observed for the silver(I) thiolate cluster during the configurational change of the central polyoxovanadate core; the color of the solution changes reversibly from green to dark yellow. This work represents the first reported example of chromic polyoxometalate-templated silver(I) thiolate shells that respond to external acid-base stimuli. It also represents an important advance in providing crystallographic proof that structural transformations occur in a nanoscale core-shell cluster.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP13497944	Silver metavanadate		13497-94-4	Price

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