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Issue 19, 2018
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Gadolinium based endohedral metallofullerene Gd2@C79N as a relaxation boosting agent for dissolution DNP at high fields

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Abstract

We show increased dynamic nuclear polarization by adding a low dosage of a S = 15/2 Gd based endohedral metallofullerene (EMF) to DNP samples. By adding 60 μM Gd2@C79N, the nuclear polarization of 1H and 13C spins from 40 mM 4-oxo-TEMPO increases by approximately 40% and 50%, respectively, at 5 T and 1.2 K. Electron–electron double resonance (ELDOR) measurements show that the high spin EMF shortens the electron relaxation times and increases electron spectral diffusion leading to the increased DNP enhancement.

Graphical abstract: Gadolinium based endohedral metallofullerene Gd2@C79N as a relaxation boosting agent for dissolution DNP at high fields

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Supplementary files

Article information


Submitted
22 Dec 2017
Accepted
12 Feb 2018
First published
15 Feb 2018

Chem. Commun., 2018,54, 2425-2428
Article type
Communication

Gadolinium based endohedral metallofullerene Gd2@C79N as a relaxation boosting agent for dissolution DNP at high fields

X. Wang, J. E. McKay, B. Lama, J. van Tol, T. Li, K. Kirkpatrick, Z. Gan, S. Hill, J. R. Long and H. C. Dorn, Chem. Commun., 2018, 54, 2425
DOI: 10.1039/C7CC09765D

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