Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1245, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2021.131259
Keywords
Dioxomolybdenum(VI); Schiff base; DFT study; NBO analysis; catalytic activity
Categories
Funding
- Ardakan University
- Payame Noor University
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A new dioxomolybdenum(VI) complex was successfully synthesized using an ONO donor Schiff base, showing good catalytic potential for selective oxidation reactions. The complex exhibited distorted octahedral geometry and high efficiency in catalyzing the oxidation of aryl and alkyl sulfides.
A new dioxomolybdenum(VI) complex has been successfully prepared by the reaction of an ONO donor Schiff base, derived by condensing 4-amino-2-hydroxybenzohydrazide and 3-ethoxysalicylaldehyde, with MoO2(acac)(2). The structures of synthesized products were explored spectroscopically through FT-IR, H-1 & C-13 NMR and by elemental composition (CHN) through combustion analysis. The tridentate Schiff base ligand is bonded to the central metal through its deprotonated enolic and phenolic oxygen atoms and by the nitrogen of the azomethine group. The interpretation of the data obtained through diffraction analysis validates the distorted octahedral geometry for the prepared metal complex. Furthermore, the catalytic potential of the molybdenum complex was explored for the selective oxidation of the aryl and alkyl sulfides to the corresponding sulfones in the presence of 30% aqueous H2O2 in ethanol. The main edge of the present catalytic work is the accomplishment of reaction in a short period of time, high percentage yield and easy work-up procedure. (C) 2021 Elsevier B.V. All rights reserved.
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