The satisfactory rationalization of complex reactive pathways in solution chemistry may greatly benefit from the combined use of advanced experimental and theoretical complementary methods of analysis. In this work, we combine X-Ray Absorption and 1H NMR spectroscopies with state-of-the-art Multivariate Curve Resolution and theoretical analyses to gain a comprehensive view on a prototypical reaction involving the variation of the oxidation state and local structure environment of a selected metal ion coordinated by organic ligands. Specifically, we investigate the 2-cyano-2-phenylpropanoic acid reduction of the octahedral complex established by the Cu2+ ion with terpyridine to the tetrahedral complex formed by Cu+ and neocuproine. Through our interdisciplinary approach we gain insights into the nature, concentration time evolution and structures of the key metal (XAS measurements) and organic (1H NMR measurements) species under reaction. We believe our method may prove to be useful in the toolbox necessary to understand the mechanisms of reactive processes of interest in solution.

Two Faces of the Same Coin: Coupling X-Ray Absorption and NMR Spectroscopies to Investigate the Exchange Reaction Between Prototypical Cu Coordination Complexes / Del Giudice, D.; Tavani, F.; Di Berto Mancini, M.; Frateloreto, F.; Busato, M.; Oliveira De Souza, D.; Cenesi, F.; Lanzalunga, O.; DI STEFANO, Stefano; D'Angelo, P.. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - (2022). [10.1002/chem.202103825]

Two Faces of the Same Coin: Coupling X-Ray Absorption and NMR Spectroscopies to Investigate the Exchange Reaction Between Prototypical Cu Coordination Complexes

Del Giudice D.;Tavani F.;Di Berto Mancini M.;Frateloreto F.;Busato M.;Cenesi F.;Lanzalunga O.
;
Di Stefano S.
;
D'Angelo P.
2022

Abstract

The satisfactory rationalization of complex reactive pathways in solution chemistry may greatly benefit from the combined use of advanced experimental and theoretical complementary methods of analysis. In this work, we combine X-Ray Absorption and 1H NMR spectroscopies with state-of-the-art Multivariate Curve Resolution and theoretical analyses to gain a comprehensive view on a prototypical reaction involving the variation of the oxidation state and local structure environment of a selected metal ion coordinated by organic ligands. Specifically, we investigate the 2-cyano-2-phenylpropanoic acid reduction of the octahedral complex established by the Cu2+ ion with terpyridine to the tetrahedral complex formed by Cu+ and neocuproine. Through our interdisciplinary approach we gain insights into the nature, concentration time evolution and structures of the key metal (XAS measurements) and organic (1H NMR measurements) species under reaction. We believe our method may prove to be useful in the toolbox necessary to understand the mechanisms of reactive processes of interest in solution.
2022
chemical fuel; multivariate analysis; NMR; reaction mechanism; time resolved XAS and NMR; XANES; XAS
01 Pubblicazione su rivista::01a Articolo in rivista
Two Faces of the Same Coin: Coupling X-Ray Absorption and NMR Spectroscopies to Investigate the Exchange Reaction Between Prototypical Cu Coordination Complexes / Del Giudice, D.; Tavani, F.; Di Berto Mancini, M.; Frateloreto, F.; Busato, M.; Oliveira De Souza, D.; Cenesi, F.; Lanzalunga, O.; DI STEFANO, Stefano; D'Angelo, P.. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - (2022). [10.1002/chem.202103825]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1603364
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