Inside Cover: Production and NMR Characterization of Hyperpolarized 107,109Ag Complexes (Angew. Chem. Int. Ed. 2/2012)

Abstract

107Ag and 109Ag undergo simultaneous dynamic nuclear polarization as described by Z. Kovacs et al. in their Communication on page 525 ff. The large liquid-state NMR enhancements achieved allow the Ag NMR spectroscopic characterization of Ag+ complexes in the mM concentration range. Both hyperpolarized isotopes have long T1 relaxation times, enabling NMR experiments to be performed in which the signal from the 107Ag nuclei can be detected after destroying the 109Ag magnetization by radio-frequency excitation.