Abstract

CAMPOS-GAXIOLA, José J.; HOPFL, Herbert  and  PARRA-HAKE, Miguel. Mono and Dinuclear Cadmium(II) Complexes with the Ligand cis-2,4,5-tri(2-pyridyl)imidazoline. J. Mex. Chem. Soc [online]. 2007, vol.51, n.1, pp.27-32. ISSN 1870-249X.

The polypyridyl ligand cis-2,4,5-tri(2-pyridyl)imidazoline (L) is found to form Cd(II) complexes of different nuclearity, [Cd(L)(NO₃)₂(MeOH)] (1) and [Cd(μ-L)Cl₂]₂ (2), behaving as a tridentate ligand. The X-ray diffraction analysis of 1 shows a mononuclear complex, while the structure of 2 consists of a dinuclear complex with two L ligands bridging the two metal centres. Intra and intermolecular hydrogen bonds are observed in 1 forming 1-D chains, as well as one intramolecular CH···π interaction. In 2 only one intramolecular π-π interaction is observed.

Keywords : Pyridyl and imidazoline ligand; Cadmium(II); Crystal structure; Mononuclear complex; Dinuclear complex; non-covalent interactions.

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