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Research Article | Open Access

Synthesis, structure, and characteristics of a hexa-Ti-oxo-cluster-added Keggin-type polyoxometalate

Yu Wang, Hai-Lou Li, Guo-Yu Yang ( )
MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
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Abstract

An acentric hexa-Ti-oxo-cluster-added trimeric phosphotungstate, [H2N(CH3)2]3H12[Ti6O6(A-α-1,2-PW10O37)3]∙12 H2O (1), was synthesized by reacting trivacant polyoxometalate (POM) fragments with Ti4+ ions under hydrothermal conditions and characterized via single-crystal/powder X-ray diffraction, solid UV–vis and IR spectroscopies, and thermogravimetric analysis. The polyoxoanion of 1 is constituted by three Ti2O3(A-α-1,2-PW10O37) subunits linked through Ti–O–Ti bonds, forming a ring-shaped configuration. Furthermore, 1 exhibits a second-harmonic generation response about 0.6 times that of KH2PO4, which paves the way toward the development of Ti-added POMs in the field of nonlinear optical materials.

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Keywords

Ti-oxo clusteraddition reactionhydrothermal synthesisnonlinear optics

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Polyoxometalates
Volume 2 Issue 3,
September 2023
Pages 9140033-9140033
DOI: 10.26599/POM.2023.9140033

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Wang Y, Li H-L, Yang G-Y. Synthesis, structure, and characteristics of a hexa-Ti-oxo-cluster-added Keggin-type polyoxometalate. Polyoxometalates, 2023, 2(3): 9140033. https://doi.org/10.26599/POM.2023.9140033

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Received: 08 July 2023
Revised: 22 August 2023
Accepted: 29 August 2023
Published: 21 September 2023
© The Author(s) 2023. Polyoxometalates published by Tsinghua University Press.

The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.