title: The β-phosphorus hyperfine coupling constant in nitroxide: part 3: titration of water by electron paramagnetic resonance.
abstract: Recently, we showed that the phosphorus hyperfine coupling constant aPβ of persistent cyclic nitroxides decreased with the normalized polarity Reichardt's constant E. Thus, we investigated the changes in aPβ in binary mixtures of solvents. The sensitivity of aPβ to the solvent was high enough to allow us to perform water titration in THF, 1,4-dioxane, and acetonitrile by EPR. Accuracies of a few percent were achieved.
authors.affiliation: Aix-Marseille Université, CNRS-UMR 7273, ICR, case 541, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France. sylvain.marque@univ-amu.fr.
authors.forename: Gérard
authors.initials: G
authors.lastname: Audran
authors.affiliation: Aix-Marseille Université, CNRS-UMR 7273, ICR, case 541, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France. sylvain.marque@univ-amu.fr.
authors.forename: Lionel
authors.initials: L
authors.lastname: Bosco
authors.affiliation: Aix-Marseille Université, CNRS-UMR 7273, ICR, case 541, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France. sylvain.marque@univ-amu.fr.
authors.forename: Paul
authors.initials: P
authors.lastname: Brémond
authors.affiliation: Aix-Marseille Université, CNRS-UMR 7273, ICR, case 541, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France. sylvain.marque@univ-amu.fr.
authors.forename: Teddy
authors.initials: T
authors.lastname: Butscher
authors.affiliation: CRMSB, CNRS-UMR-5536, Université Victor Segalen Bordeaux 2, 146 rue Léo Saignat, Case 93, 33076 Bordeaux Cedex, France.
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Franconi
authors.affiliation: Aix-Marseille Université, CNRS-UMR 7273, ICR, case 541, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France. sylvain.marque@univ-amu.fr and N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Pr. Lavrentjeva 9, 630090 Novosibirsk, Russia.
authors.forename: Sylvain R A
authors.initials: SR
authors.lastname: Marque
authors.affiliation: CRMSB, CNRS-UMR-5536, Université Victor Segalen Bordeaux 2, 146 rue Léo Saignat, Case 93, 33076 Bordeaux Cedex, France and INSERM, 146 rue Léo Saignat, Case 93, 33076 Bordeaux Cedex, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Mellet
authors.affiliation: CRMSB, CNRS-UMR-5536, Université Victor Segalen Bordeaux 2, 146 rue Léo Saignat, Case 93, 33076 Bordeaux Cedex, France.
authors.forename: Elodie
authors.initials: E
authors.lastname: Parzy
authors.affiliation: Aix-Marseille Université, CNRS-UMR 7273, ICR, case 541, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France. sylvain.marque@univ-amu.fr.
authors.forename: Maurice
authors.initials: M
authors.lastname: Santelli
authors.affiliation: CRMSB, CNRS-UMR-5536, Université Victor Segalen Bordeaux 2, 146 rue Léo Saignat, Case 93, 33076 Bordeaux Cedex, France.
authors.forename: Eric
authors.initials: E
authors.lastname: Thiaudière