Cation‐Controlled Assembly of Polyoxotungstate‐Based Coordination Networks

The Preyssler polyoxoanion, [NaP5W30O110]14− ({P5W30}), is used as a platform for evaluating the role of nonbridging cations in the formation of transition‐metal‐bridged polyoxometalate (POM) coordination frameworks. Specifically, the assembly architecture of Co2+‐bridged frameworks is shown to be d...

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Bibliographic Details
Published inAngewandte Chemie Vol. 132; no. 38; pp. 16752 - 16758
Main Authors Chen, Linfeng, Turo, Michael J., Gembicky, Milan, Reinicke, Ruth A., Schimpf, Alina M.
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 14.09.2020
Subjects
Assembly
Calcium
Calcium ions
Carbon dioxide
Cations
Chemistry
Cobalt
Coordination
coordination networks
Crystallization
ion pairs
Magnesium
metal oxides
polyoxometalates
Polyoxometallates
self-assembly
Stability
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Summary:The Preyssler polyoxoanion, [NaP5W30O110]14− ({P5W30}), is used as a platform for evaluating the role of nonbridging cations in the formation of transition‐metal‐bridged polyoxometalate (POM) coordination frameworks. Specifically, the assembly architecture of Co2+‐bridged frameworks is shown to be dependent on the identity and amount of alkali or alkaline‐earth cations present during crystallization. The inclusion of Li+, Na+, K+, Mg2+, or Ca2+ in the framework synthesis is used to selectively synthesize five different Co2+‐bridged {P5W30} structures. The influence of the competition between K+ and Co2+ for binding to {P5W30} in dictating framework assembly is evaluated. The role of ion pairing on framework assembly structure and available void volume is discussed. Overall, these results provide insight into factors governing the ability to achieve controlled assembly of POM‐based coordination networks. Networking: The Preyssler polyoxoanion, [NaP5W30O110]14− ({P5W30}), was used to evaluate the role of nonbridging cations in the formation of transition‐metal‐bridged polyoxometalate (POM) coordination frameworks. The assembly architecture of Co2+‐bridged frameworks is dependent on the identity and amount of alkali or alkaline‐earth cations present during crystallization. Overall, these results provide insight into factors governing controlled assembly of POM‐based coordination networks.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.202005627