Bis(2-amino alcohol-κN)dicarboxylatoplatinum(II) complexes - Elegant synthesis via ring-opening of bis(2-amino alcoholato-κ2N,O) platinum(II) species with dicarboxylic acids
- Author(s)
- Kristof Meelich, Mathea Sophia Galanski, Vladimir Arion, Bernhard Keppler
- Abstract
Synthesis and purification of bis(2-amino alcohol-κN) dicarboxylatoplatinum(II) complexes is problematic because of the use of light-sensitive silver(I) salts and the competing ring-closing side-reactions, especially after release of the chloroor iodo ligands of the dihalogeno starting platinum(II) species. A novel synthetic procedure, namely selective synthesis of doubly ring-closed bis(2-amino alcoholato-κ2N,O)platinum(II) compounds as the purification step and subsequent coordination of dicarboxylates in the absence of silver(I) via a ring-opening reaction, yielded a series of new complexes, which were characterized by elemental analysis, NMR spectroscopy, and X-ray crystallography. Exemplarily, the ring-opening of bis(2-aminoethanolato-κ2N,O)platinum(II) was performed in the NMR tube by means of oxalic acid and investigated by 1H and 195Pt NMR spectroscopy. The reaction was found to be highly efficient: within 3 h complete transformation to the dicarboxylatoplatinum(II) complex was observed. Contrary, when sodium oxalate was used, no reaction could be detected at all during a period of one day. © Wiley-VCH Verlag GmbH & Co. KGaA, 2006.
- Organisation(s)
- Department of Inorganic Chemistry
- Journal
- European Journal of Inorganic Chemistry
- Pages
- 2476-2483
- No. of pages
- 8
- ISSN
- 1434-1948
- DOI
- https://doi.org/10.1002/ejic.200600193
- Publication date
- 2006
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1040 Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/872ea35b-ef3b-4ef3-9c60-59b2b0e55136