A new complex [Cu(C12H8N2)2]1.5PW12O40·1.5H2O was synthesized under hydrothermal conditions. The complex was characterized by the elemental analysis, SEM, X-ray powder diffraction analysis, IR,UV-Vis spectroscopy,and TG thermal analysis,respectively. The experimental result shows that the heteropolyanion is of a Keggin structure containing coordinated cations. Photochromism studies show that the electron transfer takes place from the organic compound to the heteropolyanion.
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