Proton hyperpolarisation preserved in long-lived states.

Puneet Ahuja (1) , Riddhiman Sarkar (1) , Sami Jannin (1) , Paul R Vasos (1, 2) , Geoffrey Bodenhausen (1, 3)

1 ISIC - Institut des sciences et d'ingénierie chimiques
2 LCBPT - UMR 8601 - Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques
3 UPMC - Université Pierre et Marie Curie - Paris 6

The polarisation of abundant protons, rather than dilute nuclei with low gyromagnetic ratios, can be enhanced in less than 10 min using dissolution DNP and converted into a long-lived state delocalised over an ensemble of three coupled protons. The process is more straightforward than the hyperpolarisation of heteronuclei followed by magnetisation transfer to protons.

Domaines: Chimie organique

Puneet Ahuja, Riddhiman Sarkar, Sami Jannin, Paul R Vasos, Geoffrey Bodenhausen. Proton hyperpolarisation preserved in long-lived states.. Chemical Communications, 2010, 46 (43), pp.8192-4. ⟨10.1039/c0cc01953d⟩. ⟨hal-00591628⟩