Direct Assessment of Electron Delocalization Using NMR Chemical Shifts

被引:46
|
作者
Steinmann, Stephan N. [1 ]
Jana, Daniel F. [1 ]
Wu, Judy I-C [2 ]
Schleyer, Paul von R. [2 ]
Mo, Yirong [3 ]
Corminboeuf, Clemence [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, EPFL SB ISIC LCMD, CH-1015 Lausanne, Switzerland
[2] Univ Georgia, Dept Chem, Athens, GA 30602 USA
[3] Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA
关键词
aromaticity; conjugation; electron delocalization; NMR spectroscopy; ring current; INDUCED MAGNETIC-FIELD; RING CURRENTS; AROMATICITY; MOLECULES; CYCLOBUTADIENE; BENZENE; IGLO; NICS; DECOMPOSITION; INDICATORS;
D O I
10.1002/anie.200905390
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(figure represented) Probe it: The new BLW-ICLO 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. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:9828 / 9833
页数:6
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