Chiral {Ni6PW9} Cluster-Organic Framework: Synthesis, Structure, and Properties

Zhen-Wen Wang; Qing Zhao; Chong-An Chen; Jun-Jun Sun; Hongjin Lv; Guo-Yu Yang

doi:10.1021/acs.inorgchem.2c00575

Chiral {Ni₆PW₉} Cluster-Organic Framework: Synthesis, Structure, and Properties

Inorg Chem. 2022 May 16;61(19):7477-7483. doi: 10.1021/acs.inorgchem.2c00575. Epub 2022 May 5.

Authors

Zhen-Wen Wang¹, Qing Zhao¹, Chong-An Chen¹, Jun-Jun Sun¹, Hongjin Lv¹, Guo-Yu Yang¹

Affiliation

¹ MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.

PMID: 35511461
DOI: 10.1021/acs.inorgchem.2c00575

Abstract

A chiral three-dimensional polyoxometalate cluster-organic framework (POMCOF) H₃[(btc)Ni₆(μ₃-OH)₃(H₂O)₅(B-α-PW₉O₃₄)]·17H₂O (1, btc = 1,2,4-benzenetricarboxylate) has been made under hydrothermal conditions in the absence of amine or chiral starting reagents. 1 shows high stability in CH₃CN/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 1 could be a suitable catalyst for photocatalysis. Visible-light-driven H₂ evolution studies have demonstrated that 1 is an ecofriendly, efficient, and recyclable catalyst with a H₂ evolution rate of 1058.24 μmol h^-1g^-1. Nonlinear optical (NLO) measurement reveals that 1 exhibits a second-harmonic generation (SHG) response of about 1.4 times that of KH₂PO₄ (KDP), indicating that 1 is a potential NLO material as well.