Influence of deuteration in the glassing matrix on 13C dynamic nuclear polarization.

ABSTRACT: Replacement of protons by deuterons in the glassing solvents led to 2-3-fold improvement of the (13)C dynamic nuclear polarization (DNP) solid-state NMR signal for samples doped with large electron spin resonance (ESR) linewidth free radicals galvinoxyl, DPPH, and 4-oxo-TEMPO. Meanwhile, the reverse effect is observed for (13)C DNP using small ESR linewidth free radicals BDPA and trityl OX063.

SUBMITTER: Lumata L 

PROVIDER: S-EPMC3681295 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature