title: A polyoxometalate-encapsulating cationic metal-organic framework as a heterogeneous catalyst for desulfurization.
abstract: A new cationic triazole-based metal-organic framework encapsulating Keggin-type polyoxometalates, with the molecular formula [Co(BBPTZ)3][HPMo12O40]⋅24 H2O [compound 1; BBPTZ = 4,4'-bis(1,2,4-triazol-1-ylmethyl)biphenyl] is hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, powder X-ray diffraction, and single-crystal X-ray diffraction. The structure of compound 1 contains a non-interpenetrated 3D CdSO4 (cds)-type framework with two types of channels that are interconnected with each other; straight channels that are occupied by the Keggin-type POM anions, and wavelike channels that contain lattice water molecules. The catalytic activity of compound 1 in the oxidative desulfurization reaction indicates that it is not only an effective and size-selective heterogeneous catalyst, but it also exhibits distinct structural stability in the catalytic reaction system.
authors.affiliation: Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 (P.R. China); School of Chemical and Biological Engineering, Tai Yuan Science and Technology University, Taiyuan, 030021 (P. R. China).
authors.forename: Xiu-Li
authors.initials: XL
authors.lastname: Hao
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Ma
authors.forename: Hong-Ying
authors.initials: HY
authors.lastname: Zang
authors.forename: Yong-Hui
authors.initials: YH
authors.lastname: Wang
authors.forename: Yang-Guang
authors.initials: YG
authors.lastname: Li
authors.forename: En-Bo
authors.initials: EB
authors.lastname: Wang
keywords: cobalt; heterogeneous catalysis; metal-organic frameworks; oxidative desulfurization; polyoxometalates