The syntheses and characterization of nickel complexes; investigation of Ni(dppp)2 and [NiX(dppp)n]x, potentially catalytically active nickel(0)/(I) species for cross-coupling reactions

This thesis describes an investigation in which we compare Ni(0), Ni(I) and Ni(II) complexes containing 1,3-bis(diphenylphosphino)propane (dppp) as a phosphine ligand for their abilities to effect three types of cross-coupling reactions: Buchwald-Hartwig Amination, Heck-Mizoroki, and Suzuki-Miyaura cross-coupling reactions with different types of substrates. The Ni(0) complex Ni(dppp)2 is known and we have synthesized it via a new procedure involving zinc reduction of the known NiCl2(dppp) in the presence of an excess of dppp. The Ni(0) complex was characterized by NMR spectroscopy and X-ray crystallography. Since Ni(I) complexes of dppp seem unknown, we have synthesized what at this stage appear to be NiXdpppn/[NiX(dppp)n]x (X = Cl, Br, I; n = 1,2, x = 1, 2) by comproportionation of molar equivalents of Ni(dppp)2 and NiX2dppp, X= Cl, Br, I.

Environmental exposure to airborne contaminants in the nickel industry, 1976-1977 /

Mode of access: Internet.

Occupational exposure to inorganic nickel.

Mode of access: Internet.

Nickel-cobalt resources of Cuba /

Includes bibliographical references.

Precipitation of the sulphides of nickel & cobalt in an alkaline tartrate solution : together with an investigation into the nature of certain tartrates of these metals.

Reprinted from the Journal of the American chemical society, v. 22, no. 8, Ag. 1900.

The double-nickel challenge. Race to the fuel pump.

Mode of access: Internet.

Cuba's expropriation of U.S.--owned nickel plant at Nicaro, Cuba. Twelfth report of the Committee on Government Operations.

"Union calendar No. 624."

Special occupational hazard review and control recommendations for nickel carbonyl /

Mode of access: Internet.

A method of stripping and replating nickel electroplated uranium /

"U.S. Atomic Energy Commission Contract AT(29-1)-1106."

Solid state bonding of aluminum and nickel /

"Contract AT-30-1-GEN-366."

Monel, inconel, nickel, and nickel alloys.

Title on cover: Nickel and nickel alloys.

Nickel alloy steels.

Mode of access: Internet.

Statistische zusammenstellungen über blei, kupfer, zink, zinn, silber, nickel, aluminium und quecksilber,

Mode of access: Internet.