Zinc(II) Hexafluoroacetylacetonate Complexes of Alkoxyamines: NMR and Kinetic Investigations. First Step for a New Way to Prepare Hybrid Materials

被引：18

作者：

Audran, Gerard ^{[1
]}

Bagryanskaya, Elena ^{[2
,3
]}

Bagryanskaya, Irina ^{[2
]}

Edeleva, Mariya ^{[2
,3
]}

Marque, Sylvain R. A. ^{[1
,2
]}

Parkhomenko, Dmitriy ^{[2
]}

Tretyakov, Evgeny ^{[2
]}

Zhivetyeva, Svetlana ^{[2
]}

机构：

[1] Aix Marseille Univ, CNRS, ICR, UMR 7273, Case 551,Ave Escadrille Normandie Niemen, F-13397 Marseille 20, France

[2] NN Vorozhtsov Novosibirsk Inst Organ Chem SB RAS, Pr Lavrentjeva 9, Novosibirsk 630090, Russia

[3] Novosibirsk State Univ, 2 Pirogova Str, Novosibirsk 630090, Russia

来源：

CHEMISTRYSELECT | 2017年 / 2卷 / 12期

基金：

俄罗斯科学基金会;

关键词：

activation; alkoxyamines; C-ON bond homolysis; rate enhancement; Zn(hfac)(2) complexes; ON BOND HOMOLYSIS; NITROXIDE-MEDIATED POLYMERIZATION; POLYMERS; QUATERNIZATION;

D O I：

10.1002/slct.201700678

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of Zn(hfac)(2) alkoxyamines (diethyl(2,2-dimethyl-1-(tert-butyl-(1-pyridylethoxy)amino)propyl)phosphonate) coordinated at ortho, meta and para positions of their pyridyl moiety were prepared and their homolysis rate constants k(d) measured. Up to a 30-fold increase in k(d) was observed for the meta-(Zn-RR/SS) and para-(Zn-RR/SS) regioisomers. Moreover, the activation is also controlled by the amount of pyridine, used as a ligand competitor. XRD, H-1 and P-31 NMR spectra show very different structures for each complexes in solid state and in solution depending on the diastereosiomers and on the regioisomers.

引用

页码：3584 / 3593

页数：10