caa a22 4500 605545650 CHVBK 20210128100937.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00723-015-0649-4 doi (NATIONALLICENCE)springer-10.1007/s00723-015-0649-4 Solvent Effect in β-Phosphorylated Nitroxides: Model Nitroxides [Elektronische Daten] [Gérard Audran, Lionel Bosco, Paul Brémond, Teddy Butscher, Sylvain Marque] Solvent effects have been investigated for the last four decades. As far as we know, only 3 articles have reported on the solvent effect with β-phosphorylated nitroxides. In 1976, Il'Yasov and coll. (Theor Exp Chem 12:656, 1976) showed in 16 solvents that the phosphorus hyperfine coupling constant a P linearly decreased with the polarity of the solvent given by the normalized Reichardt-Dimroth polarity constant E N T for in situ generated nitroxides, e.g., from a P=40.80G in n-hexane (E T N =0.09) to a P=22.80G in water (E T N =1). A few years later, Janzen and coll. (Magn Reson Chem 37:251-258, 1999) reported a weak (around 4G) decrease in a P for a few β-phosphorylated nitroxides in n-hexane and methanol. Recently, our group reported hardly any change in a P with the solvent for a very stable nitroxide, e.g., a P=46.19 in n-pentane and a P=45.60 in water. In this article, we report the solvent effect in 40 solvents on two new nitroxides and discuss at the light of the results reported in the literature. It turns out that a P changes obey no trends, i.e., strong or weak decrease, no change or even a weak increase in a P was observed depending on the structure of each nitroxide. Springer-Verlag Wien, 2015 Audran Gérard Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut Bosco Lionel Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut Brémond Paul Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut Butscher Teddy Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut Marque Sylvain Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut Applied Magnetic Resonance Springer Vienna 46/12(2015-12-01), 1333-1342 0937-9347 46:12<1333 2015 46 723 https://doi.org/10.1007/s00723-015-0649-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00723-015-0649-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Audran Gérard Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut NATIONALLICENCE 700 1- Bosco Lionel Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut NATIONALLICENCE 700 1- Brémond Paul Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut NATIONALLICENCE 700 1- Butscher Teddy Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut NATIONALLICENCE 700 1- Marque Sylvain Aix Marseille Université, CNRS, ICR UMR 7273, 13397, Marseille Cedex 20, France aut NATIONALLICENCE 773 0- Applied Magnetic Resonance Springer Vienna 46/12(2015-12-01), 1333-1342 0937-9347 46:12<1333 2015 46 723