172294-42-7

Basic information

• Product Name: (η(2)-C6H8)Ni(1,2-bis(dicyclohexylphosphino)ethane)
• Synonyms: (η(2)-C6H8)Ni(1,2-bis(dicyclohexylphosphino)ethane)
• CAS NO: 172294-42-7
• Molecular Weight: 561.434
• Mol File: 172294-42-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (η(2)-C6H8)Ni(1,2-bis(dicyclohexylphosphino)ethane)(CAS DataBase Reference)
• NIST Chemistry Reference: (η(2)-C6H8)Ni(1,2-bis(dicyclohexylphosphino)ethane)(172294-42-7)
• EPA Substance Registry System: (η(2)-C6H8)Ni(1,2-bis(dicyclohexylphosphino)ethane)(172294-42-7)

Safety Data

• Hazardous Substances Data: 172294-42-7(Hazardous Substances Data)

Upstream product

• 172294-41-6 (η(2)-C6H8)Ni(PPh3)2 
• 23743-26-2 1,2-bis-(dicyclohexylphosphino)ethane 
• 91513-98-3 Ni(η(2)-C2H4)(1,2-bis(dicyclohexylphosphino)ethane) 
• 49676-92-8 1,2-dibromocyclohex-1-ene 

Downstream Products

• 91513-98-3 Ni(η(2)-C2H4)(1,2-bis(dicyclohexylphosphino)ethane) 
• 75627-79-1 [NiBr₂(1,2-bis(dicyclohexylphosphino)ethane)] 
• 172294-46-1 (1,2-bis(dicyclohexylphosphino)ethane)(2-methylcyclohexenyl)iodonickel(II) 
• 172294-48-3 Ni(Br)(BrC₆H₈)(((C₆H₁₁)2PCH₂)2) 
• 172294-52-9 Ni(C₆H₈C(S)S)(((C₆H₁₁)2PCH₂)2) 
• 171359-44-7 Ni(C₂H₅CCC₂H₅)(((C₆H₁₁)2PCH₂)2) 
• 172294-54-1 Ni(CH₃OOCCCCOOCH₃)(((C₆H₁₁)2PCH₂)2) 
• 172294-50-7 Ni(((C₆H₁₁)2PCH₂)2)(OC(O)C₆H₈) 
• 172294-55-2 (((C₆H₁₁)2PCH₂)2)Ni(OC(O)C₆H₈C(COOCH₃)C(COOCH₃)) 

Relevant articles and documents

Synthesis and reactions of nickel(0) η2-cyclohexyne complexes and X-ray crystal structure of Ni(η2-C6H8)(C6H 11)2PCH2CH2P(C6H 11)2

Reduction of 1,2-dibromocyclohexene with 1% sodium amalgam in the presence of Ni(η2-C2H4)L2 gives cyclohexyne nickel(O) complexes Ni(η2-C6H8)L2 [L2 = 2PPh3 (1), dcpe (2), 2PEt3 (3); dcpe = 1,2-bis(dicyclohexylphosphino)ethane, Cy2PCH2CH2PCy2], which are structurally similar to, but less stable than, the corresponding platinum(O) compounds. The crystal structure of 2 has been determined. The molecule contains a nickel atom bound to η2-cyclohexyne [Ni-C(1) = 1.875(4) A?, Ni-C(2) = 1.867(4) A?] and to dcpe [Ni-P(1) = 2.139-(1) A?, Ni-P(2) = 2.138(1) A?]. The geometry is close to trigonal planar if the midpoint of the coordinated triple bond is regarded as occupying one coordination site, and the C=C distance [1.272(5) A?] is slightly less than that in Pt(η2-C6H8)(PPh3)2 [1.297(8) A?]. Complex 2 reacts with methyl iodide and with CO2 to give insertion products containing nickel(II), NiI(2-MeC6H8)(dcpe) (7) and Ni{C6H8C(O)O}(dcpe)(9), respectively. Dimethyl acetylenedicarboxylate inserts into the Ni-C σ-bond of 9 to give a seven-membered nickelacycle Ni{C(CO2-Me)=C(CO2Me)C6H 8C(O)C-(dcpe) (10).