Cation-controlled assembly of Na+-linked lacunary α-Keggin tungstosilicates

Hirokazu Chiba; Akihide Wada; Tomoji Ozeki

doi:10.1039/B514169A

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Cation-controlled assembly of Na⁺-linked lacunary α-Keggin tungstosilicates†‡

Hirokazu Chiba,^a Akihide Wada^b and Tomoji Ozeki*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry and Materials Science, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551, Japan
E-mail: tozeki@cms.titech.ac.jp
Fax: +81 3 5734 2442
Tel: +81 3 5734 2442

^b Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan

Abstract

Two novel salts of lacunary tungstosilicates with guanidinium and alkali metal cations, (CH₆N₃)₇Na[SiW₁₁O₃₉]·(CH₃)₂CO·8H₂O (1) and (CH₆N₃)K₆Na[SiW₁₁O₃₉]·11.5H₂O (2), have been synthesized and their crystal structures have been determined by synchrotron X-ray diffraction. In both crystals, the Na⁺ cations link the lacunary Keggin-type tungstosilicate anions into linear structures. The neighboring [SiW₁₁O₃₉]⁸⁻ anions are related by two-fold screw and translational operations in compounds 1 and 2, respectively. Second harmonic generation was observed for compound 1.

Download options Please wait...

Supplementary files

Article information

DOI: https://doi.org/10.1039/B514169A
Article type: Paper
Submitted: 05 Oct 2005
Accepted: 07 Nov 2005
First published: 28 Nov 2005

Download Citation

Dalton Trans., 2006, 1213-1217

Permissions

Request permissions

Cation-controlled assembly of Na⁺-linked lacunary α-Keggin tungstosilicates

H. Chiba, A. Wada and T. Ozeki, Dalton Trans., 2006, 1213 DOI: 10.1039/B514169A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Dalton Transactions