Electronic, Structural and Magnetic Properties of (TTF)6(NEt4)[PMo12 O40]: A Mixed-Valence TTF Salt With a Magnetic Polyoxometallate

(TTF) 6 (NEt 4 )[PMo 12 O 40 ] has been characterised by EPR, IR and Resonance Raman Spectroscopy and by static magnetic susceptibility. From all these data the compound can be formulated as: (Et 4 N) + (TTF o ) 2 (TTF) 4 3+ [PMo 12 O 40 ] 4- . The magnetic and the electrical properties are accounted for on this basis