Coherent evolution of singlet spin states in PHOTO-PHIP and M2S experiments

A. N. Pravdivtsev, A. V. Yurkovskaya, P. A. Petrov, H. M. Vieth

Результат исследования: Научные публикации в периодических изданияхстатья

8 Цитирования (Scopus)

Аннотация

A consistent theoretical description of the spin dynamics underlying photo-PHIP (para-hydrogen induced polarization) experiments is given and validated experimentally: spectra from zero-quantum coherence (ZQC) "in-phase" and "out-of-phase" were obtained and evolution of ZQCs and the population of singlet spin state was tracked and modeled. Data from recent literature [O. Torres et al., J. Am. Chem. Soc., 2014] are reinterpreted. Advantages of using M2S sequences such as APSOC for detecting photo-PHIP are demonstrated. A sequence for 2D ZQ spectroscopy based on APSOC is proposed and the fundamental principles of ZQ spectroscopy are formulated. This investigation opens a new way to obtain information on the sign of J-couplings using ZQ spectroscopy. The proposed method is also useful to track the redistribution of the singlet spin population in various PHIP related experiments, which is essential for efficient polarization transfer to target nuclei.

Язык оригиналаанглийский
Страницы (с-по)25961-25969
Число страниц9
ЖурналPhysical Chemistry Chemical Physics
Том19
Номер выпуска38
DOI
СостояниеОпубликовано - 14 окт 2017

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