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- Title
Ce-mediated molecular tailoring on gigantic polyoxometalate {Mo<sub>132</sub>} into half-closed {Ce<sub>11</sub>Mo<sub>96</sub>} for high proton conduction.
- Authors
Li, Xue-Xin; Li, Cai-Hong; Hou, Ming-Jun; Zhu, Bo; Chen, Wei-Chao; Sun, Chun-Yi; Yuan, Ye; Guan, Wei; Qin, Chao; Shao, Kui-Zhan; Wang, Xin-Long; Su, Zhong-Min
- Abstract
Precise synthesis of polyoxometalates (POMs) is important for the fundamental understanding of the relationship between the structure and function of each building motif. However, it is a great challenge to realize the atomic-level tailoring of specific sites in POMs without altering the major framework. Herein, we report the case of Ce-mediated molecular tailoring on gigantic {Mo132}, which has a closed structural motif involving a never seen {Mo110} decamer. Such capped wheel {Mo132} undergoes a quasi-isomerism with known {Mo132} ball displaying different optical behaviors. Experiencing an 'Inner-On-Outer' binding process with the substituent of {Mo2} reactive sites in {Mo132}, the site-specific Ce ions drive the dissociation of {Mo2*} clipping sites and finally give rise to a predictable half-closed product {Ce11Mo96}. By virtue of the tailor-made open cavity, the {Ce11Mo96} achieves high proton conduction, nearly two orders of magnitude than that of {Mo132}. This work offers a significant step toward the controllable assembly of POM clusters through a Ce-mediated molecular tailoring process for desirable properties. Polyoxometalates (POMs) are molecular clusters with diverse structures. Here authors present the synthesis of POMs by Ce-mediated molecular tailoring from gigantic {Mo132} into half-closed {Ce11Mo96}, with proton conductivity nearly two orders of magnitude higher than {Mo132}.
- Subjects
PROTON conductivity; MOLECULAR clusters; POLYOXOMETALATES; PROTONS; COLLISION induced dissociation
- Publication
Nature Communications, 2023, Vol 14, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-40685-0