Type: Article

Efficient alkene epoxidation catalyzed by molybdenyl acetylacetonate supported on aminated UiO-66 metal-organic framework

Journal: Journal of Solid State Chemistry (1095726X)Year: 1 March 2015Volume: 226Issue: Pages: 262 - 272

Kardanpour R.Tangestaninejad S.^aMirkhani V.^aMoghadam M.^aMohammadpoor Baltork I.^a Zadehahmadi F.

a :University of Isfahan - IRAN(IR) - Isfahan

DOI:10.1016/j.jssc.2014.11.020Language: English

Abstract

Metal-organic frameworks (MOFs) containing Mo Schiff base complexes were prepared by post-synthesis method and applied as efficient catalysts in the epoxidation of alkenes with tert-BuOOH. In this manner, UiO-66-NH2 (UiO=University of Oslo) MOF was reacted with salicylaldehyde and thiophene-2-carbaldehyde to produce bidentate Schiff bases. Then, the Schiff base ligands were used for immobilization of molybdenyl acetylacetonate. These new catalysts were characterized by FT-IR, UV-vis spectroscopic techniques, X-ray diffraction (XRD), BET, inductively coupled plasma atomic emission spectroscopy (ICP-AES) and field emission scanning electron microscopy (FE-SEM). These catalytic systems showed excellent activity in the epoxidation of alkenes such as cyclic and linear ones with tert-butyl hydroperoxide (TBHP) in 1,2-dichloroethane, and reused several times without any appreciable loss of their activity. © 2014 Elsevier Inc. All rights reserved.