Solid-state <sup>1</sup>H spin polarimetry by <sup>13</sup>CH<sub>3</sub> nuclear magnetic resonance

Abstract. Dissolution dynamic nuclear polarization is used to prepare spin polarizations approaching unity. At present, 1H quantification in the solid state remains fastidious due requirement of measuring thermal equilibrium signals. Line shape polarimetry solid-state magnetic resonance spectra determine several useful properties regarding system under investigation. In case highly polarized spins, such as those prepared conditions dissolution experiments, absolute a particular isotopic species within sample may be directly inferred from characteristics corresponding line shape. situations where direct measurements are complicated by deleterious phenomena, indirect estimates using coupled heteronuclear spins prove informative. We present simple analysis 13C spectral [2-13C]sodium acetate based on normalized deviation centre gravity peaks, which can indirectly evaluate proton methyl group moiety and very likely entire rapid homogeneous 1H–1H diffusion. For positive microwave irradiation, was found increase with an increasing deviation. These results suggest that, dopant, could gauge standard formulations, potentially advantageous for (i) samples commercial devices that lack radiofrequency hardware, (ii) deleteriously influenced radiation damping or presence large background signals (iii) acquisition spectrum not feasible.