期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 11, 页码 3699-3703出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201511765
关键词
cluster compounds; crystal transformation; host-guest chemistry; polyoxometalates; silver
资金
- National Natural Science Foundation of China [21271034, 21371153]
- Science and Technology Innovation Team of Jiamusi University [CXTD-2013-05, CXTD-2016-01]
- Program for Science & Technology Innovation Talents in Universities of Henan Province [13HASTIT008]
- Key Scientific and Technological Project of Henan Province [132102210411]
- Zhengzhou University
Self-assembly of metavanadate and organosilver(I) salts leads to a novel dodecahedrane-like [Ag-30((BuS)-Bu-t)(20)](10+) silver(I) thiolate nanocage that tightly wraps an unusual C-2h polyoxovanadate anion. The polyoxovanadate core undergoes transformation to a D-3d configuration upon acidification, and reverts back to its original C-2h 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.
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