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Direct Assessment of Electron Delocalization Using NMR Chemical Shifts

2009; Wiley; Volume: 48; Issue: 52 Linguagem: Inglês

10.1002/anie.200905390

1521-3773

Stephan N. Steinmann, Daniel F. Jana, Judy I. Wu, Paul von Ragué Schleyer, Yirong Mo, Clémence Corminbœuf,

Magnetism in coordination complexes

Probe it: The new BLW-IGLO approach evaluates the magnetic responses of molecules in which conjugative interactions are "disabled" (see picture, red bonds). The NMR spectroscopy parameters of the localized structures provide ideal non-aromatic olefinic hydrogen δ(1H) references for the fully conjugated systems.