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Issue 38, 2012
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New porphyrin–polyoxometalate hybrid materials: synthesis, characterization and investigation of catalytic activity in acetylation reactions

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Abstract

New hybrid complexes based on covalent interaction between 5,10,15,20-tetrakis(4-aminophenyl)porphyrinatozinc(II) and 5,10,15,20-tetrakis(4-aminophenyl)porphyrinatotin(IV) chloride, and a Lindqvist-type polyoxometalate, Mo6O192−, were prepared. These new porphyrin–polyoxometalate hybrid materials were characterized by 1H NMR, FT IR and UV-Vis spectroscopic methods and cyclic voltammetry. These spectro- and electrochemical studies provided several spectral data for synthesis of these compounds. Cyclic voltammetry showed the influence of the polyoxometalate on the redox process of the porphyrin ring. The catalytic activity of tin(IV)porphyrin–hexamolybdate hybrid material was investigated in the acetylation of alcohols and phenols with acetic anhydride. The reusability of this catalyst was also investigated.

Graphical abstract: New porphyrin–polyoxometalate hybrid materials: synthesis, characterization and investigation of catalytic activity in acetylation reactions

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Publication details

The article was received on 13 Jul 2012, accepted on 25 Jul 2012 and first published on 17 Aug 2012


Article type: Paper
DOI: 10.1039/C2DT31553J
Citation: Dalton Trans., 2012,41, 11745-11752
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    New porphyrin–polyoxometalate hybrid materials: synthesis, characterization and investigation of catalytic activity in acetylation reactions

    M. Araghi, V. Mirkhani, M. Moghadam, S. Tangestaninejad and I. Mohammdpoor-Baltork, Dalton Trans., 2012, 41, 11745
    DOI: 10.1039/C2DT31553J

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