Schulz–Flory oligomerisation of ethylene by the binuclear nickel(ii) complex Ni2Cl4[cis,trans,cis-1,2,3,4-tetrakis-(diphenylphosphino)cyclobutane]

Dalton Transactions Pub Date: 2003-09-17 DOI: 10.1039/B308388H

Abstract

The binuclear nickel(II) complex Ni2Cl4(cyclo-tetraphos) (cyclo-tetraphos = cis,trans,cis-1,2,3,4-tetrakis-(diphenylphosphino)cyclobutane) forms, upon activation with MAO, an effective and robust catalyst for the oligomerisation of ethylene to Schulz–Flory distributions of C4–C14 olefins with a mechanism where both chain transfer and chain propagation are first order in ethylene.

Graphical abstract: Schulz–Flory oligomerisation of ethylene by the binuclear nickel(ii) complex Ni2Cl4[cis,trans,cis-1,2,3,4-tetrakis-(diphenylphosphino)cyclobutane]
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