The reactions of L-enantiopure alpha-amino acids (aaH) with Na2MoO4 led to the high-yield isolation of Mo(VI) complexes of general formula Mo2O4(OH)(4)(aaH). A similar outcome was achieved by using (NH4)(6)Mo7O24 in the place of Na2MoO4. Solid-state IR and NMR spectroscopy indicated the presence of cis-MoO2 units linked by a zwitterionic amino acid ligand, via a bidentate bridging coordination through the carboxylate group. Thus possible dinuclear and polynuclear structures are proposed on the basis of DFT calculations.

Structural characterization of alpha-amino acid complexes of molybdates: a spectroscopic and DFT study

BORTOLUZZI, Marco;
2015

Abstract

The reactions of L-enantiopure alpha-amino acids (aaH) with Na2MoO4 led to the high-yield isolation of Mo(VI) complexes of general formula Mo2O4(OH)(4)(aaH). A similar outcome was achieved by using (NH4)(6)Mo7O24 in the place of Na2MoO4. Solid-state IR and NMR spectroscopy indicated the presence of cis-MoO2 units linked by a zwitterionic amino acid ligand, via a bidentate bridging coordination through the carboxylate group. Thus possible dinuclear and polynuclear structures are proposed on the basis of DFT calculations.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10278/3642746
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