Direct Assessment of Electron Delocalization Using NMR Chemical Shifts

Direct Assessment of Electron Delocalization Using NMR Chemical Shifts

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 conjuga...

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Veröffentlicht in:Angewandte Chemie (International ed.) 2009-01, Vol.48 (52), p.9828-9833
Hauptverfasser: Steinmann, Stephan N, Jana, Daniel F, Wu, Judy I.-C, Schleyer, Paul von R, Mo, Yirong, Corminboeuf, Clémence
Format: Artikel
Sprache:eng
Schlagworte:
aromaticity
conjugation
electron delocalization
NMR spectroscopy
ring current
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Zusammenfassung: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.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200905390