Chiral {NiPW} Cluster-Organic Framework: Synthesis, Structure, and Properties.

A chiral three-dimensional polyoxometalate cluster-organic framework (POMCOF) H[(btc)Ni(μ-OH)(HO)(B-α-PWO)]·17HO (, btc = 1,2,4-benzenetricarboxylate) has been made under hydrothermal conditions in the absence of amine or chiral starting reagents. shows high stability in CHCN/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 could be a suitable catalyst for photocatalysis. Visible-light-driven H evolution studies have demonstrated that is an ecofriendly, efficient, and recyclable catalyst with a H evolution rate of 1058.24 μmol hg. Nonlinear optical (NLO) measurement reveals that exhibits a second-harmonic generation (SHG) response of about 1.4 times that of KHPO (KDP), indicating that is a potential NLO material as well.