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

DOI: 10.1039/DT9960002055

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2055 - 2060 (1996)

Update date:2022-08-11

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Authors:

Golub, GiladGolub, Gilad

Cohen, HaimCohen, Haim

Paoletti, PieroPaoletti, Piero

Bencin, AndreaBencin, Andrea

Meyerstein, DanMeyerstein, Dan

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Article abstract of DOI:10.1039/DT9960002055

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.

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