Co(II)-Co(II) paddlewheel complex with a redox-active ligand derived from TTF

Noura Benbellat; Konstantin S Gavrilenko; Yann Le Gal; Olivier Cador; Stéphane Golhen; Abdelkrim Gouasmia; Jean-Marc Fabre; Lahcène Ouahab

doi:10.1021/ic061680v

Co(II)-Co(II) paddlewheel complex with a redox-active ligand derived from TTF

Inorg Chem. 2006 Dec 25;45(26):10440-2. doi: 10.1021/ic061680v.

Authors

Noura Benbellat¹, Konstantin S Gavrilenko, Yann Le Gal, Olivier Cador, Stéphane Golhen, Abdelkrim Gouasmia, Jean-Marc Fabre, Lahcène Ouahab

Affiliation

¹ Organométalliques et Matériaux Moléculaires, UMR 6226 CNRS, Université de Rennes 1, Sciences Chimiques de Rennes, 35042 Rennes Cedex, France.

PMID: 17173396
DOI: 10.1021/ic061680v

Abstract

A new trimethyltetrathiafulvalene (Me3TTF) derivative Me3TTF-CH=CH-py bearing a pyridyl was synthesized and coordinated to a cobalt(II) benzoate dimer, having paddlewheel core structure, leading to a complex formulated as Co2(PhCOO)4(Me3TTF-CH=CH-py)2. Single-crystal X-ray diffraction studies of the complex performed at 293 and 100 K evidenced the existence of a weak metal-metal interaction. Magnetic studies revealed an antiferromagnetic behavior, which is explained as the result of the direct exchange between metal centers.