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

Marin-Montesinos, I. ; Paniagua, J.C. ; Vilaseca, M. ; Urtizberea, A. ; Luis, F. (Universidad de Zaragoza) ; Feliz, M. ; Lin, F. ; Van Doorslaer, S. ; Pons, M.

Resumen: A 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.

Idioma: Inglés

DOI: 10.1039/c4cp05225k

Año: 2015

Publicado en: Physical chemistry chemical physics 17, 8 (2015), 5785-5794
ISSN: 1463-9076

Factor impacto JCR: 4.449 (2015)

Categ. JCR: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL rank: 6 / 35 = 0.171 (2015) - Q1 - T1
Categ. JCR: CHEMISTRY, PHYSICAL rank: 32 / 144 = 0.222 (2015) - Q1 - T1

Factor impacto SCIMAGO: 1.725 - Physics and Astronomy (miscellaneous) (Q1) - Physical and Theoretical Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/EUR/COST-Action/TD1103
Financiación: info:eu-repo/grantAgreement/EC/FP7/261863/EU/NMR for Structural Biology/BIO-NMR
Financiación: info:eu-repo/grantAgreement/ES/MINECO/BIO2010-15683
Financiación: info:eu-repo/grantAgreement/ES/MINECO/BIO2013-45793R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38318-C03-01

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)