The reactions of L-enantiopure α-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)6Mo7O24 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 α-Amino Acid Complexes of Molybdates: a Spectroscopic and DFT Study

Biancalana, L.;MARCHETTI, FABIO;PAMPALONI, GUIDO
2015

Abstract

The reactions of L-enantiopure α-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)6Mo7O24 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.
Biancalana, L.; Bortoluzzi, M.; Forte, C.; Marchetti, Fabio; Pampaloni, Guido
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/664663
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