Di- and trimethylplatinum(IV) complexes with aspartate: some subtle effects of chelate ring size

Appleton T.G., Hall J.R., Jones T.G. and Sinkinson J.A. (1995) Di- and trimethylplatinum(IV) complexes with aspartate: some subtle effects of chelate ring size. Polyhedron, 14 19: 2613-2622. doi:10.1016/0277-5387(95)00127-E


Author Appleton T.G.
Hall J.R.
Jones T.G.
Sinkinson J.A.
Title Di- and trimethylplatinum(IV) complexes with aspartate: some subtle effects of chelate ring size
Journal name Polyhedron   Check publisher's open access policy
ISSN 0277-5387
Publication date 1995
Sub-type Article (original research)
DOI 10.1016/0277-5387(95)00127-E
Volume 14
Issue 19
Start page 2613
End page 2622
Total pages 10
Subject 1604 Human Geography
1606 Political Science
2505 Materials Chemistry
Abstract The complex Na[PtMe3(asp-N,αO,βO)] (H2asp = aspartic acid) was obtained as a solid from reaction of [PtMe3]2(SO4)·4H2O with aspartate. In D2O, the interchange between this complex with aspartate tridentate and [PtMe3(D2O)(asp-,αO)]t- was rapid on the NMR time-scale. Fac-[PtMe2Br(D2O)3]+ with D2asp at pD 2.5 gave the two isomers of [PtMe2Br(Dasp-N,αO)(D2O)] with the chelate ring trans to the methyl groups. With standing at pD 5-6, the two isomers of [PtMe2Br(asp-N,αO,βO)]- with N trans to methyl were formed, initially in similar proportions. With long standing, the isomer with N and β-carboxylate trans to methyl predominated. When the pD was decreased to 3, this isomer was in equilibrium with a complex in which water replaced β-carboxylate. UV irradiation of a solution containing the two isomers of [PtMe2Br(asp-N,αO,βO))]su- with N trans to methyl caused formation of the isomer with N trans to bromide.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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