Dedicated to Professor Klaus Jurkschat on the Occasion of His 60th Birthday
Article first published online: 31 MAY 2012
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Zeitschrift für anorganische und allgemeine Chemie
Volume 638, Issue 11, pages 1761–1767, September 2012
How to Cite
Seubert, K., Böhme, D., Kösters, J., Shen, W.-Z., Freisinger, E. and Müller, J. (2012), N-Methyl-2, 2'-Dipicolylamine Complexes as Potential Models for Metal-Mediated Base Pairs . Z. anorg. allg. Chem., 638: 1761–1767. doi: 10.1002/zaac.201200089
Supporting Information for this article is available on the WWW under http://dx.doi.org/10.1002/zaac.201200089 or from the author.
- Issue published online: 20 SEP 2012
- Article first published online: 31 MAY 2012
- Manuscript Accepted: 31 MAY 2012
- Manuscript Received: 29 FEB 2012
- Argentophilic interactions;
- Metal-mediated base pairs;
Metal-mediated base pairs can be used to insert metal ions into nucleic acids at precisely defined positions. As structural data on the resulting metal-modified DNA are scarce, appropriate model complexes need to be synthesized and structurally characterized. Accordingly, the molecular structures of nine transition metal complexes of N-methyl-2, 2'-dipicolylamine (dipic) are reported. In combination with an azole-containing artificial nucleoside, this tridentate ligand had recently been used to generate metal-mediated base pairs (Chem. Commun. 2011, 47, 11041–11043). The PdII and PtII complexes reported here confirm that the formation of planar complexes (as required for a metal-mediated base pair) comprising N-methyl-2, 2'-dipicolylamine is possible. Two HgII complexes with differing stoichiometry indicate that a planar structure might also be formed with this metal ion, even though it is not favored. In the complex [Ag2(dipic)2](ClO4)2, the two AgI ions are located close to one another with an Ag···Ag distance of 2.9152(3) Å, suggesting the presence of a strong argentophilic interaction.