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All‐Inorganic Ionic Porous Material Based on Giant Spherical Polyoxometalates Containing Core‐Shell K6@K36‐Water Cage
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-10-19 , DOI: 10.1002/anie.201810074
Zhong Li 1 , Li-Dan Lin 1 , Hao Yu 1 , Xin-Xiong Li 1 , Shou-Tian Zheng 1
Affiliation  

This work demonstrates that the use of high‐negative and high‐symmetry lacunary polyoxometalates (POMs) for the clustering of alkali metal ions is a feasible strategy not only for the formation of rare high‐nuclearity alkali‐metal clusters but also for the construction of new‐type all‐inorganic ionic porous materials. By the strategy, an unprecedented high‐nuclearity K‐H2O cluster {K42(H2O)60} with core–shell K6@K36 configuration is stabilized by 8 C3v‐symmetry trivacant POMs [GeW9O34]10−, forming a novel giant ionic alkali‐metal‐POM composite cluster {K42Ge8W72O272(H2O)60} with more than 100 metal centers. The incorporated 42‐nuclearity K‐H2O cluster {K42(H2O)60} exhibits the highest‐nuclearity alkali‐metal‐water cluster known to date in POM chemistry. Further, the giant {K42Ge8W72O272(H2O)60} clusters can be linked by another kind of alkali metal ions Na+ to generate a fascinating three‐dimensional all‐inorganic ionic porous framework with high chemical stability, proton conductivity, and water vapor adsorption.

中文翻译:

基于包含核壳K6 @ K36-水笼的巨型球形多金属氧酸盐的全无机离子多孔材料

这项工作表明,使用高负高对称性的多金属氧钛金属氧化物(POM)进行碱金属离子的聚集不仅是形成稀有的高核碱金属金属簇的可行策略,而且对于构建新型全无机离子多孔材料。通过该策略,通过8 C 3 v对称三空POM [GeW 9 O]稳定了空前的高核K-H 2 O簇{K 42(H 2 O)60 },具有核-壳K 6 @K 36构型。34 ] 10−,形成一个新型的巨型离子性碱金属POM复合簇{K42 Ge 8 W 72 O 272(H 2 O)60 }具有100多个金属中心。结合的42核K-H 2 O团簇{K 42(H 2 O)60 }表现出迄今为止在POM化学中已知的最高核碱金属-水团簇。此外,巨大的{K 42 Ge 8 W 72 O 272(H 2 O)60 }团簇可以通过另一种碱金属离子Na +连接 生成具有高化学稳定性,质子传导性和水蒸气吸附力的迷人的三维全无机离子多孔骨架。
更新日期:2018-10-19
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