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Novel PTM–TEMPO Biradical for Fast Dissolution Dynamic Nuclear Polarization

Novel PTM–TEMPO Biradical for Fast Dissolution Dynamic Nuclear Polarization

Scientific Highlights Tuneable and low cost molecular electronics 21 December 2014 6165 hits jags

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Org. Lett.,2014,16(20), pp 5402–5405

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.

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