Issue 10, 1996

Copper-(I) and -(II) complexes with tertiary linear polyamines of the type Me2NCH2(CH2NMeCH2)nCH2NMe2(n= 1–4)

Abstract

2,5,8,11-Tetramethyl-2,5,8,11-tetraazadodecane, 2,5,8,11,14-pentamethyl-2,5,8,11,14-pentaazapentadecane, and 2,5,8,11,14,17-hexamethyl-2,5,8,11,14,17-hexaazaoctadecane, form stable complexes with CuI in aqueous solutions. On the other hand 2,5,8-trimethyl-2,5,8-triazanonane, does not. This indicates that the stabilization of CuI by tertiary amine ligands in aqueous solutions requires at least four nitrogens. The electronic spectra and the electrochemical properties of the [CuLi]2+ complexes over a wide pH range were studied and potentiometric titrations were made of solutions containing equimolar concentrations of CuII and Li. The nature of the complexes present in these solutions is discussed.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1996, 2055-2060

Copper-(I) and -(II) complexes with tertiary linear polyamines of the type Me2NCH2(CH2NMeCH2)nCH2NMe2(n= 1–4)

G. Golub, H. Cohen, P. Paoletti, A. Bencini and D. Meyerstein, J. Chem. Soc., Dalton Trans., 1996, 2055 DOI: 10.1039/DT9960002055

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