D-ORBITAL EFFECTS IN SILICON-SUBSTITUTED PI-SYSTEMS .19. EFFECT OF R3SI AND R3SICH2 GROUPS ON ELECTRON STRUCTURE OF NITROBENZENE

被引：9

作者：

ALT, H

BOCK, H

机构：

[1] Institut für Anorganische Chemie, Universität München

来源：

TETRAHEDRON | 1969年 / 25卷 / 19期

关键词：

D O I：

10.1016/S0040-4020(01)83023-4

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Electronic spectra, NO2-vibrational frequencies and half-wave reduction potentials of p-substituted nitrobenzenes O2NC6H4X (X = H, CH3, Si(CH3)3, CH2Si(CH3)3) were determined and interpreted by means of a localized orbital" model. The results prove for the neutral molecules increasing donor properties of the substituents in the order H < Si(CH3)3 < CH3 ≪ CH2Si(CH3)3. The Si ← Cπ-acceptor function into empty silicon atomic orbitals of the R3Si substituent is demonstrated especially in the enhanced stability of the p-trimethylsilyl-nitrobenzene radical anion. © 1969."

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页码：4825 / &

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