期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 48, 页码 17282-17286出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201911170
关键词
co-crystallization; gigantic clusters; molecular growth; polyoxometalates; tungsten
资金
- EPSRC [EP/S017046/1, EP/S019472/1, EP/R020914/1, EP/R009902/1, EP/R01308X/1, EP/R020892/1, EP/P029329/1, EP/L023652/1, EP/K038885/1]
- ERC [670467 SMART-POM]
- Zhejiang Normal University
- [NSFC-21801226]
- EPSRC [EP/J015156/1, EP/S017046/1, EP/L023652/1, EP/H024107/1, EP/S019472/1, EP/K038885/1, EP/R020892/1, EP/R020914/1, EP/R01308X/1] Funding Source: UKRI
The construction of pure-inorganic framework materials with well-defined design rules and building blocks is challenging. In this work, we show how a polyoxometalate cluster with an integrated pore, based on [P8W48O184](40-) (abbreviated as {P8W48}), can be self-assembled into inorganic frameworks using silver ions, which both enable reactions on the cluster as well as link them together. The {P8W48} was found to be highly reactive with silver ions resulting in the in situ generation of fragments, forming {P9W63O235} and {P10W66O251} in compound (1) where these two clusters co-crystallize and are connected into a POMZite framework with 11 Ag+ ions as linkers located inside clusters and 10 Ag+ linking ions situated between clusters. Decreasing both the concentration of Ag+ ions, and the reaction temperature compared to the synthesis of compound (1), leads to {P8W51O196} in compound 2 where the {P8W48} clusters are linked to form a new POMZite framework with 9 Ag+ ions per formula unit. Further tuning of the reaction conditions yields a cubic porous network compound (3) where {P8W48} clusters as cubic sides are joined by 4 Ag+ ions to give a cubic array and no Ag+ ions were found inside the clusters.
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