Pure TTF Chains in π-d Material made of Paramagnetic Transition Metal Complex Containing TTF as Ligand, [Cu II(hfac) 2(TTF-py) 2](BF 4) 2.2CH 2Cl 2 (hfac = hexafluoroacetylacetonate and TTF-py = 4-(2-tetrathiafulvalenyl-ethenyl)pyridine)

Abstract

The preparation, X-ray crystal structure, EPR and magnetic measurements of [Cu II(hfac) 2(TTF-py) 2](BF 4) 2.2CH 2Cl 2, a new material where the conducting and the localized spin systems are covalently linked through conjugated bridges, are reported. This materials is in line with a previous compound [Cu II(hfac) 2(TTF-py) 2](PF 6).2CH 2Cl 2, despite the full oxidation of the TTF-type organic donor ligand, we observed the presence of dimerized TTF chains.