Inorganic cryptand: Size-selective strong metallic cation encapsulation by a disilicoicosatungstate (Si2W20) polyoxometalate

Akihiro Yoshida; Yoshinao Nakagawa; Kazuhiro Uehara; Shiro Hikichi; Noritaka Mizuno

doi:10.1002/anie.200903275

Inorganic cryptand: Size-selective strong metallic cation encapsulation by a disilicoicosatungstate (Si₂W₂₀) polyoxometalate

Akihiro Yoshida, Yoshinao Nakagawa, Kazuhiro Uehara, Shiro Hikichi, Noritaka Mizuno

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

A select club: The polyoxometalate [(γ-SiW₁₀O ₃₂)₂(μ-O)₄]^8- (1^8-) has a cavity that can sizeselectively encapsulate the ions Pb²⁺, Sr²⁺, Na⁺, Ag⁺, K⁺, and Rb ⁺ (see picture, light blue; Si hidden, W gray, O red). Larger Ba ²⁺ and Cs⁺ ions (pink) are not encapsulated by 1. The molecular structures of [Mⁿ⁺∪1]^(8-n)- (M ⁿ⁺=Pb²⁺, Sr²⁺, Ag⁺, Ba²⁺) were characterized by X-ray crystallography.

Original language	English
Pages (from-to)	7055-7058
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	48
Issue number	38
DOIs	https://doi.org/10.1002/anie.200903275
Publication status	Published - 2009 Sep 7
Externally published	Yes

Keywords

Cryptands
Encapsulation
Polyoxometalates
Size selectivity
Tungsten

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1002/anie.200903275

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Inorganic cryptand : Size-selective strong metallic cation encapsulation by a disilicoicosatungstate (Si₂W₂₀) polyoxometalate. / Yoshida, Akihiro; Nakagawa, Yoshinao; Uehara, Kazuhiro; Hikichi, Shiro; Mizuno, Noritaka.

In: Angewandte Chemie - International Edition, Vol. 48, No. 38, 07.09.2009, p. 7055-7058.

Research output: Contribution to journal › Article › peer-review

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