71928-64-8

Basic information

• Product Name: C₄H₉NONi(P(C₆H₅)3)2
• CAS NO: 71928-64-8
• Molecular Weight: 670.393
• Mol File: 71928-64-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₄H₉NONi(P(C₆H₅)3)2(CAS DataBase Reference)
• NIST Chemistry Reference: C₄H₉NONi(P(C₆H₅)3)2(71928-64-8)
• EPA Substance Registry System: C₄H₉NONi(P(C₆H₅)3)2(71928-64-8)

Safety Data

• Hazardous Substances Data: 71928-64-8(Hazardous Substances Data)

Upstream product

• 15133-82-1 tetrakis(triphenylphosphine)nickel⁽⁰⁾ 
• 594-70-7 2-Methyl-2-nitropropane 

Relevant articles and documents

Kinetics and mechanism of oxygen atom transfer from nitro compounds mediated by nickel(0) complexes

(Phosphine)nickel(0) complexes NiL4 react readily with a variety of aliphatic and aromatic nitro compounds RNO2 to afford the corresponding nitrosonickel(0) complexes (RNO)NiL2 and the phosphine oxide in high yields. Kinetic studies show that the coordinatively unsaturated NiL3, formed by phosphine dissociation, is involved in the rate-limiting reaction with RNO2. The polar effects of the nitro compounds as measured by the Taft σ* parameters for alkyl groups and the Hammett σ constants for aryl groups correlate directly with their reactivity in oxygen atom transfer. A rate-limiting transition state which is highly polar is also indicated by the linear relationship between the second-order rate constants (i.e., log ke) and the electrochemical reduction potential E of the nitro compound with a slope of 7, closely approaching the theoretical limit predicted by Marcus' theory for outer-sphere electron transfer to afford the ion pair [L3NiI,RNO2-·]. Collapse of such a species to a cyclic intermediate would allow the direct elimination of phosphine oxide and concomitant formation of the nitrosonickel(0) complex.