Selective oligomerization of ethylene to linear α-olefins by tetrahedral cobalt(II) complexes with 6-(organyl)-2-(imino)pyridyl ligands:: Influence of the heteroatom in the organyl group on the catalytic activity

被引：115

作者：

Bianchini, C

Mantovani, G

Meli, A

Migliacci, F

Laschi, F

机构：

[1] CNR, ICCOM, I-50132 Florence, Italy

[2] Univ Siena, Dipartimento Chim, I-53100 Siena, Italy

来源：

ORGANOMETALLICS | 2003年 / 22卷 / 13期

关键词：

D O I：

10.1021/om030227d

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The oligomerization of ethylene to alpha-olefins has been obtained by MAO activation of tetrahedral Co-II complexes of iminopyridines substituted in the 6-position of the pyridine ring by thiophen-2-yl, furan-2-yl, or phenyl groups. An intriguing heteroatom effect has been noticed on both activity and selectivity, together with a change in the Co-II spin state upon activation of the dichloride precursors with MAO.

引用

页码：2545 / 2547

页数：3

共 13 条

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[Anonymous], 1982, TRANSIT METAL CHEM

[2] The isolation and crustal structure of the powerful Lewis acid, planar tetrakispyridine cobalt(II), [Co(C5H5N)(4)](2+), as its mixed chloride hexafluorophosphate salt [J].