Wydział Chemii

M. Branca

Giovanni Micera

A. Dessi

Henryk Kozłowski

1989

Journal of the Chemical Society, Dalton Transactions

1283-1287

10.1039/DT9890001283

Naukowa

Angielski

Artykuł

The ¹H electron nuclear double resonance (ENDOR) spectra of the VO^IV–D-galacturonic acid system in aqueous solution have been studied as a function of pH. Couplings between the paramagnetic ion and the protons of ligand or water molecules have been distinguished by comparative examination of the spectra recorded in water and D₂O. Comparison of data with results available from potentiometric and other spectroscopic measurements allowed interpretation of the pH dependence of ENDOR spectra and the assignment of the main observed resonances, e.g. those due to methine protons on the carbon atoms bearing deprotonated carboxyl and/or hydroxyl groups co-ordinated to the metal ion.

https://doi.org/10.1039/DT9890001283

https://www.rsc.org/