Angewandte Chemie International Edition
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Inside Cover: Giant Spin-Orbit Effects on NMR Shifts in Diamagnetic Actinide Complexes: Guiding the Search of Uranium(VI) Hydride Complexes in the Correct Spectral Range (Angew. Chem. Int. Ed. 43/2012)
The known 1H NMR chemical shifts of diamagnetic compounds so far range from around δ=−60 ppm to about +20 ppm. In their Communication on page 10884 ff., P. Hrobarik, M. Kaupp, et al. predict that, because of giant relativistic spin-orbit effects, the 1H NMR shifts of the to-date elusive uranium(VI) hydride complexes will be between δ=+40 ppm and more than +150 ppm, a completely unprecedented range. Knowing the correct spectral range to look for should facilitate the characterization of this new compound class.