Novel PTM-TEMPO biradical for fast dissolution dynamic nuclear polarization.


The synthesis and characterization of a novel trityl-TEMPO biradical and the investigation of its properties as Dynamic Nuclear Polarization (DNP) polarizing agent are reported. Comparison with a structurally related monoradical (PTM-TEMPE) or mixtures of the two monoradical components reveals that the biradical has a much higher polarization efficiency and a faster polarization buildup. This offers the possibility of faster recycling further contributing to its efficiency as a polarizing agent.

DOI: 10.1021/ol502644x

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@article{MuozGmez2014NovelPB, title={Novel PTM-TEMPO biradical for fast dissolution dynamic nuclear polarization.}, author={Jose-Luis Mu{\~n}oz-G{\'o}mez and Ildefonso Mar{\'i}n-Montesinos and Vega Lloveras and Miquel Pons and J Vidal-Gancedo and Jaume Veciana}, journal={Organic letters}, year={2014}, volume={16 20}, pages={5402-5} }