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EnglishElectronic spectrophotometry has been employed to study the mechanism of transimination in bis(N-alkylsalicylaldiminato)nickel(II) complexes (alkyl = Me, Et, Pr(i), Pr(n) or Bu(n)) by ammonium ion in acetonitrile. The reaction is clearly biphasic: fast addition of ammonium and slow elimination of alkylammonium ions. The addition reaction involving the two azomethine bonds of the complex occurs by two consecutive processes and a two-term rate law was found for R = Bu(n). In the successive elimination reaction only one rate constant was observed which depends on the pK(a) and steric strain of the leaving alkylammonium ions.
| Autori interni: | ||
| Autori: | Carbonaro L.; Giacomelli A.; Isola M.; Senatore L. | |
| Titolo: | Mechanistic study of the transimination of bis(N-alkylsalicylaldiminato)nickel(II) with ammonium ion in acetonitrile | |
| Anno del prodotto: | 1992 | |
| Digital Object Identifier (DOI): | 10.1039/DT9920000037 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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