77Se shielding tensors of diphenyl diselenide, comparison of the results from CP/MAS NMR spectroscopy and IGLO calculations

被引：0

作者：

Gert Balzer

H. Duddeck

U. Fleischer

Florian Röhr

机构：

[1] Fachbereich für Chemie,

[2] Universität Hannover,undefined

[3] Schneiderberg 1B,undefined

[4] D-30167 Hannover,undefined

[5] Germany,undefined

[6] Lehrstuhl für Theoretische Chemie,undefined

[7] Ruhr-Universität Bochum,undefined

[8] D-44780 Bochum,undefined

[9] Germany,undefined

来源：

Fresenius' Journal of Analytical Chemistry | 1997年 / 357卷

关键词：

Spectroscopy; Phenyl; Selenium; Chemical Shift; Phenyl Ring;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The cross-polarization/magic-angle-spinning (CP/MAS) 77SeNMR experiment of Ph-Se-Se-Ph affords two signal series with isotropic chemical shifts at δiso = 425 and 350. IGLO calculations allow to assign the 77Se signals and to predict the orientation of the shielding tensors. The different chemical shifts can be explained by different torsion angles Se-Se-Cipso-Cortho which produce different β effects of the phenyl rings upon the respective next but one selenium atom.

引用

页码：473 / 476

页数：3

共 27 条

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