In Situ EPR Monitoring of Chromium Species Formed during Cr-Pyrrolyl Ethylene Trimerization Catalyst Formation

被引：64

作者：

Skobelev, Igor Y. ^{[1
,2
]}

Panchenko, Valentina N. ^{[1
]}

Lyakin, Oleg Y. ^{[1
,2
]}

Bryliakov, Konstantin P. ^{[1
,2
]}

Zakharov, Vladimir A. ^{[1
]}

Talsi, Evgenii P. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

ORGANOMETALLICS | 2010年 / 29卷 / 13期

基金：

俄罗斯基础研究基金会;

关键词：

ELECTRON-SPIN-RESONANCE; METAL OXIDATION-STATE; FROZEN SOLUTIONS; COMPLEXES; TETRAMERIZATION; OLIGOMERIZATION; SPECTROSCOPY; CHEMISTRY; MECHANISM; OLEFIN;

D O I：

10.1021/om100215t

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The catalyst systems Cr(acac)(3)/pyrrole/AlEt3/AlEt2Cl and Cr(EH)(3)/pyrrole/AlEt3/AlEt2Cl in cyclohexane (EH = 2-ethylhexanoate), modeling the Phillips ethylene trimerization catalyst, have been studied by EPR spectroscopy. The effect of various components of these catalyst systems on the concentration of CO (III) and Cr(I) species and ethylene trimerization activity has been investigated. The relationship between the trimerization data and the nature of the chromium species present in the reaction solution has been studied.

引用

页码：2943 / 2950

页数：8

共 29 条

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