Structures and thermal decomposition of complexes of E(C6F5)3 (E = Al, Ga, In) with pyridine

被引：5

作者：

Shcherbina, Nadezhda A. ^{[1
]}

Kazakov, Igor V. ^{[1
]}

Pomogaeva, Anna V. ^{[1
]}

Lisovenko, Anna S. ^{[1
]}

Kryukova, Mariya A. ^{[1
]}

Doinikov, Dmitry A. ^{[1
]}

Gugin, Nikita Yu. ^{[1
]}

Kondrat'ev, Yuri V. ^{[1
]}

Timoshkin, Alexey Y. ^{[1
]}

机构：

[1] St Petersburg State Univ, Inst Chem, Univ Skaya Emb 7-9, St Petersburg 199034, Russia

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2021年 / 948卷

基金：

俄罗斯科学基金会;

关键词：

Group 13 tris(pentafluorophenyl) Lewis acids; Pyridine; Structure; Thermal stability; DFT computations; FRUSTRATED LEWIS PAIRS; ALCL3-PYRIDINE ADDUCTS; POLYMERIZATION; DERIVATIVES; ELEMENTS; THERMOCHEMISTRY; TRIHALIDES; REACTIVITY; CHEMISTRY; POLYMERS;

D O I：

10.1016/j.jorganchem.2021.121909

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Complexes of group 13 element perfluorinated derivatives E(C6F5)(3) (E = Al, Ga, In) with pyridine (Py) were synthesized and structurally characterized for the first time. Volatility and thermal stability of complexes was studied using mass-spectrometry, tenzimetry, TGA, and drop-calorimetry methods. Heating of complexes results in elimination of pentafluorobenzene, indicating E-C bond rupture. Thermodynamic characteristics of gaseous complexes and transition states for C6F4, HF and C6F5H elimination were obtained using quantum chemical methods. Possible mechanisms for the thermal decomposition of complexes are proposed on the basis of experimental and computational data. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：10

共 59 条

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