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Chiral {Ni<sub>6</sub>PW<sub>9</sub>} Cluster–Organic Framework: Synthesis, Structure, and Properties

22

Citations

53

References

2022

Year

Abstract

A chiral three-dimensional polyoxometalate cluster-organic framework (POMCOF) H<sub>3</sub>[(btc)Ni<sub>6</sub>(μ<sub>3</sub>-OH)<sub>3</sub>(H<sub>2</sub>O)<sub>5</sub>(B-α-PW<sub>9</sub>O<sub>34</sub>)]·17H<sub>2</sub>O (<b>1</b>, btc = 1,2,4-benzenetricarboxylate) has been made under hydrothermal conditions in the absence of amine or chiral starting reagents. <b>1</b> shows high stability in CH<sub>3</sub>CN/DMF (1:3), acidic, and basic solutions with the pH ranging from 2 to 12 for 5 days. The UV-vis reflectance spectra and Mott-Schottky measurements reveal that <b>1</b> could be a suitable catalyst for photocatalysis. Visible-light-driven H<sub>2</sub> evolution studies have demonstrated that <b>1</b> is an ecofriendly, efficient, and recyclable catalyst with a H<sub>2</sub> evolution rate of 1058.24 μmol h<sup>-1</sup>g<sup>-1</sup>. Nonlinear optical (NLO) measurement reveals that <b>1</b> exhibits a second-harmonic generation (SHG) response of about 1.4 times that of KH<sub>2</sub>PO<sub>4</sub> (KDP), indicating that <b>1</b> is a potential NLO material as well.

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