154789-02-3

Basic information

• Product Name: [(η3-allyl)(μ-2,6-dichlorophenoxide)nickel]2
• CAS NO: 154789-02-3
• Molecular Weight: 523.516
• Mol File: 154789-02-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [(η3-allyl)(μ-2,6-dichlorophenoxide)nickel]2(CAS DataBase Reference)
• NIST Chemistry Reference: [(η3-allyl)(μ-2,6-dichlorophenoxide)nickel]2(154789-02-3)
• EPA Substance Registry System: [(η3-allyl)(μ-2,6-dichlorophenoxide)nickel]2(154789-02-3)

Safety Data

• Hazardous Substances Data: 154789-02-3(Hazardous Substances Data)

Upstream product

• 29726-01-0 sodium 2,6-dichlorophenolate 

Relevant articles and documents

Synthesis of allylnickel aryloxides and arenethiolates. Study of their dynamic isomerization and 1,3-diene polymerization activity

A new family of allylnickel(II) complexes, [Ni(η3-allyl)(μ-X)]2 (X = ArO, ArS), have been synthesized by anion metathesis of the sodium or lithium salts of aryloxides or arenethiolates with [Ni(η3-allyl)(μ-Br)]2. The complexes are proposed to be dimeric and to consist of a mixture of cis and trans isomers. A dynamic process rapidly equilibrates the cis and trans isomers of the pentafluorophenoxide, 2,6-difluorophenoxide, and and 3,5-bis(trifluoromethyl)phenoxide complexes on the 1H NMR time scale. The 2,6-dimethylphenoxide, 2,6-diisopropylphenoxide, 2,4,6-tris(trifluoromethyl)phenoxide, and pentafluorothiophenoxide complexes are static at room temperature. A variable-temperature NMR study of the 3,5-bis(trifluoromethyl)phenoxide complex provided activation enthalpy and entropy values of 12.9 kcal/mol and -6.6 cal/(K mol), respectively. Allyl rotation or cleavage of one of the μ-X bridges is proposed as the mechanism for the isomerization. The pentafluorophenoxide, 3,5-bis(trifluoromethyl)phenoxide, and 2,4,6-tris(trifluoromethyl)phenoxide complexes initiate the rapid polymerization of 1,3-cyclohexadiene and 1,3-butadiene to form high-molecular weight, 1,4-linked polymers.