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Kinetics and mechanism of the substitution behaviour of Pd(II) piperazine complexes with different biologically relevant nucleophiles
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Kinetics and mechanism of the substitution behaviour ...
Bibliographic description
| title: | Kinetics and mechanism of the substitution behaviour of Pd(II) piperazine complexes with different biologically relevant nucleophiles |
| author: | van Eldik Rudi  , Brindell Małgorzata , Shoukry Azza |
| Journal title: | Dalton Transactions |
| volume: | 2007 |
| issue: | 37 |
| date of publication: | 2007 |
| pages: | 4169-4174 |
| ISSN: |
1477-9226 |
| eISSN: |
1477-9234 |
| DOI: | |
| language: | English |
| Journal language: | English |
| abstract in english: | The interaction of the palladium(II) complex [Pd(Pip)(H2O)2]2+, where Pip is piperazine, with a series of biologically relevant nucleophiles including guanosine-5′-monophosphate, L-methionine and thiourea was studied under pseudo-first-order conditions as a function of nucleophile concentration and temperature, using UV-Vis spectrophotometric and stopped-flow techniques. The reactions were found to occur in two subsequent steps. For the sulfur donor containing nucleophiles thiourea and L-methionine, a third reaction step, the displacement of the labilized amine, as a result of the strong trans-effect of S-donor ligands, was observed. The activation parameters for all reactions studied suggest an associative substitution mechanism. |
| affiliation: | Wydział Chemii : Zakład Chemii Nieorganicznej |
| type: | journal article |
| subtype: | academic paper |
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