Electrooxidation of Hypercoordinated Derivatives of Silicon and Reactivity of Their Electrogenerated Cation Radicals: 1-Substituted Silatranes

被引：0
|
作者：
Romanovs, Vitalijs [1 ]
Belogolova, Elena F. [2 ]
Doronina, Evgeniya P. [2 ]
Sidorkin, Valery F. [2 ]
Jouikov, Viatcheslav V. [3 ]
机构：
[1] Latvian Inst Organ Synth, Aizkraukles 21, LV-1006 Riga, Latvia
[2] Russian Acad Sci, AE Favorsky Irkutsk Inst Chem, Siberian Branch, 1 Favorsky Str, Irkutsk 664033, Russia
[3] Univ Rennes, Inst Chem Sci Rennes, UMR 6226, F-35042 Rennes, France
来源：
MOLECULES | 2023年 / 28卷 / 14期
关键词：
silatranes; cation radicals; hypercoordination; electrochemistry; EPR spectroscopy; ELECTRON-SPIN-RESONANCE; ELECTROCHEMICAL OXIDATION; MOLECULAR-STRUCTURES; PHOTOCHEMICAL ADDITION; TERTIARY-AMINES; AB-INITIO; TRIALKYLAMINES; NITROGEN; DEPROTONATION; ACETONITRILE;
D O I：
10.3390/molecules28145561
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Electrochemical oxidation of 1-R-substituted silatranes 1 (R = Me, vinyl, (CH2)(2)CN, CH2Ph, CH2(C10H7), Ph, C6H4Me, p-Cl-C6H4, Cl)-classical representatives of pentacoordinated silicon compounds-and the formation of their short living cation radicals upon reversible or quasi-reversible one-electron withdrawal were studied by means of cyclic and square-wave voltammetry, faradaic impedance spectroscopy and real-time temperature-dependent EPR spectroelectrochemistry supported by DFT B3PW91/6-311++G(d,p) (C-PCM, acetonitrile) calculations. The main reaction responsible for the decay of 1(+& BULL;) is shown to be their deprotonation, and ways of increasing the stability of these species are proposed.
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页数：17
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