Abstract
A new high-connected twin Keggin polyoxometalates (POM) based metal organic complex (POM@MOC), [Ag28(trz)18][HPWV3WVI9O40]2·2H2O (Ag28P2W24) (trz = 1,2,3-triazole), has been synthesized and structurally characterized. Single crystal X-ray analysis reveals that the new compound contains two unprecedented [10,10] connected Keggin POMs, which represents the highest connection number of POMs to any mixed-connected POM@MOCs to date. Another fascinating structural feature is that the twin Keggin POMs respectively dominates and fabricates two kinds of helices in the POM@MOCs. In addition, to improve the photocatalytic activity of the new compound Ag28P2W24, its polypyrrole (PPy) composite (PPy/Ag28P2W24) has been prepared and exhibits good uptake capacities and photocatalytic degradation for Rhodamine B dye under the visible light.
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