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Self-assembled trityl radical capsules – implications for dynamic nuclear polarization

AutorUrtizberea, A.; Luis, Fernando; Pons, M.
Fecha de publicaciónene-2015
EditorRoyal Society of Chemistry (Great Britain)
CitaciónPhysical Chemistry Chemical Physics 17(8): 5785-5794 (2015)
ResumenA new class of guest-induced, bi-radical self-assembled organic capsules is reported. They are formed by the inclusion of a tetramethylammonium (TMA) cation between two monomers of the stable trityl radical OX63. OX63 is extensively used in dissolution dynamic nuclear polarization (DNP) where it leads to NMR sensitivity enhancements of several orders of magnitude. The supramolecular properties of OX63 have a strong impact on its DNP properties. An especially relevant case is the polarization of choline-containing metabolites, where complex formation between choline and OX63 results in faster relaxation.
DescripciónThis article is licensed under a Creative Commons Attribution 3.0 Unported Licence.-- et al.
Versión del editorhttp://dx.doi.org/10.1039/C4CP05225K
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