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Polyoxometalates 2023, 2(3): 9140033 https://doi.org/10.26599/POM.2023.9140033
Research Article | Open Access | Issue | Published: 21 September 2023

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

Show Author's Information 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
Keywords:
hydrothermal synthesis, nonlinear optics, Ti-oxo cluster, addition reaction
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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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Abstract Full text Electronic supplementary material About this article

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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About this article

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

Show Author's information 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

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.

Keywords: hydrothermal synthesis, nonlinear optics, Ti-oxo cluster, addition reaction

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Publication history

Received: 08 July 2023
Revised: 22 August 2023
Accepted: 29 August 2023
Published: 21 September 2023
Issue date: September 2023

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© The Author(s) 2023. Polyoxometalates published by Tsinghua University Press.

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Acknowledgements

This research was funded by the National Natural Science Foundation of China (Nos. 21831001, 21571016, 91122028, and 20725101).

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