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Acid–Base‐Triggered Structural Transformation of a Polyoxometalate Core Inside a Dodecahedrane‐like Silver Thiolate Shell
Author(s) -
Liu Hong,
Song ChaoYu,
Huang RenWu,
Zhang Yu,
Xu Hong,
Li MeiJia,
Zang ShuangQuan,
Gao GuangGang
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201511765
Subject(s) - polyoxometalate , chemistry , cluster (spacecraft) , nanocages , base (topology) , shell (structure) , crystallography , materials science , organic chemistry , catalysis , mathematical analysis , mathematics , composite material , computer science , programming language
Self‐assembly of metavanadate and organosilver(I) salts leads to a novel dodecahedrane‐like [Ag 30 ( t BuS) 20 ] 10+ silver(I) thiolate nanocage that tightly wraps an unusual C 2 h polyoxovanadate anion. The polyoxovanadate core undergoes transformation to a D 3 d configuration upon acidification, and reverts back to its original C 2 h 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.