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Issue 2, 2015
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Syntheses, structures and properties of two new organic–inorganic hybrid materials based on ε-Zn Keggin units {ε-PMoV8MoVI4O40−x(OH)xZn4}

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Abstract

Two novel organic–inorganic hybrids, Na[PMoV8MoVI4O38(OH)2Zn4][pyim]2·1.5H2O [ε(pyim)2] (pyim = 2-(2-pyridyl)-imidazole) and [PMoV8MoVI4O37(OH)3Zn4]2[pyim]6·4H2O [ε2(pyim)6], based on ε-Zn Keggin units {ε-PMoV8MoVI4O40−x(OH)xZn4}, have been successfully synthesized under hydrothermal conditions by controlling the pH values. Structural analysis indicates that the framework of ε(pyim)2 is a 1D chain constructed by monomeric ε-Zn units modified by pyim ligands, while ε2(pyim)6 is an isolated structural compound with dimeric ε-Zn units modified by pyim ligands. This is the first isolated structure of the ε-Keggin POMs system. The luminescent and electrochemical properties of ε(pyim)2 and ε2(pyim)6 were investigated. ε2(pyim)6 also shows high catalytic activity for the esterification of phosphoric acid with equimolar lauryl alcohol to monoalkyl phosphate ester (MAP).

Graphical abstract: Syntheses, structures and properties of two new organic–inorganic hybrid materials based on ε-Zn Keggin units {ε-PMoV8MoVI4O40−x(OH)xZn4}

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Supplementary files

Article information


Submitted
28 Sep 2014
Accepted
26 Oct 2014
First published
31 Oct 2014

Dalton Trans., 2015,44, 694-700
Article type
Paper
Author version available

Syntheses, structures and properties of two new organic–inorganic hybrid materials based on ε-Zn Keggin units {ε-PMoV8MoVI4O40−x(OH)xZn4}

H. Miao, G. Hu, J. Guo, H. Wan, H. Mei, Y. Zhang and Y. Xu, Dalton Trans., 2015, 44, 694
DOI: 10.1039/C4DT02993C

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