Structural characterization of alpha-amino acid complexes of molybdates: A spectroscopic and DFT study
Laboratory:
Magnetic Resonance Spectroscopy LAB Title | Structural characterization of alpha-amino acid complexes of molybdates: A spectroscopic and DFT study |
Publication Type | Journal Article |
Year of Publication | 2015 |
Authors | Biancalana, L, Bortoluzzi, M, Forte, C, MARCHETTI, F, Pampaloni, G |
Journal | RSC Advances |
Volume | 5 |
Pagination | 9010–9018 |
ISSN | 20462069 (ISSN) |
Keywords | Alpha-amino acids, Amino acids, Bridging coordination, Carboxylate groups, Carboxylation, General formulas, IR and NMR spectroscopy, Molybdenum compounds, Molybdenum oxide, Nuclear magnetic resonance spectroscopy, Polynuclear structure, Sodium, Structural characterization, Zwitterionic amino acid |
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)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. © The Royal Society of Chemistry 2015. |
URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84921322024&partnerID=40&md5=6cec7d458720219a0506196822af00c3 |
DOI | 10.1039/c4ra14236e |