High DNP efficiency of TEMPONE radicals in liquid toluene at low concentrations

文献情報

出版日 2014-03-20

DOI 10.1039/C4CP00854E

インパクトファクター 3.676

著者

Nikolay Enkin, Guoquan Liu, Igor Tkach, Marina Bennati

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要旨

We show that at low concentrations (≤5 mM) TEMPONE radicals in liquid toluene exhibit higher DNP efficiency than in water. In spite of reduced coupling factors, the improved DNP performance in toluene results from favourable saturation and leakage factors, as determined by pulse electron–electron double resonance (ELDOR) and NMR relaxation, respectively. The extracted coupling factors at 0.35 Tesla support theoretical predictions of the Overhauser mechanism.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

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