• Corpus ID: 237485312

Selectively pulsed spin order transfer increases parahydrogen-induced NMR amplification of insensitive nuclei and makes polarization transfer more robust

  title={Selectively pulsed spin order transfer increases parahydrogen-induced NMR amplification of insensitive nuclei and makes polarization transfer more robust},
  author={Andreas B. Schmidt and Arne Brahms and Frowin Ellermann and Stephan Berner and J{\"u}rgen Hennig and Dominik von Elverfeldt and Rainer Herges and Jan Hovener and Andrey N. Pravdivtsev},
We describe a new method for pulsed spin order transfer (SOT) of parahydrogen induced polarization (PHIP) that enables close to 100 % polarization in incompletely H-labeled molecules by exciting only the desired protons in a frequency-selective manner. While a selective pulse (SP) on H at the beginning of pulsed SOT had been considered before, using SPs during the SOT suppresses undesired indirect spin-spin interactions. As a result, we achieved a more robust SOT for the SP variants of the… 

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