133551-21-0

Basic information

• Product Name: Ni(CO)2-(Tri-p-tolyl-phosphin)2
• CAS NO: 133551-21-0
• Molecular Weight: 723.454
• Mol File: 133551-21-0.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Ni(CO)2-(Tri-p-tolyl-phosphin)2(CAS DataBase Reference)
• NIST Chemistry Reference: Ni(CO)2-(Tri-p-tolyl-phosphin)2(133551-21-0)
• EPA Substance Registry System: Ni(CO)2-(Tri-p-tolyl-phosphin)2(133551-21-0)

Safety Data

• Hazardous Substances Data: 133551-21-0(Hazardous Substances Data)

Upstream product

• 1038-95-5 Tri(p-tolyl)phosphine 
• 53566-81-7 nickel(II) bis(cyclohexylxanthate) 

Relevant articles and documents

Synthetic, structural, and thermochemical studies of N-heterocyclic carbene (NHC) and tertiary phosphine ligands in the [(L)2Ni(CO)2] (L = PR3, NHC) system

Two new dicarbonyl N-heterocyclic carbene nickel(0) complexes of the type (NHC)2Ni(CO)2 (NHC = ICy, [N,N′- bis(cyclohexylimidazol)-2-ylidene (2), IMes [N,N′-bis(2,4,6- trimethylphenyl)imidazol)-2-ylidene] (3)) have been prepared by a substitution reaction of (NHC)Ni(CO)2 (NHC = ItBu [N,N′-bis(tert- butylimidazol)-2-ylidene], IAd [N,N′-bis(1-adamantylimidazol)-2-ylidene]) and 2 equivalents of ICy or IMes. Single-crystal X-ray analyses confirmed the monomeric 18-electron compositions of [(ICy)2Ni(CO)2] (2) and [(IMeS)2Ni(CO)2] (3). The greater electron-donating properties of the NHC ligands compared to tertiary phosphines are also demonstrated through calorimetric studies and enabled the determination of average bond dissociation enthalpies for Ni-L (L = NHC and tertiary phosphine).