EXCHANGE INTERACTION MEDIATED BY O-H...O HYDROGEN BONDS : SYNTHESIS, STRUCTURE, AND EPR STUDY OF THE PARAMAGNETIC ORGANOMETALLIC CARBOXYLIC ACID (ETA 7-C7H7)V(ETA 5-C5H4COOH)

Lithiation of trovacene [(η7-tropylium)vanadium(η5-cyclopentadienyl)] (1•) and appropriate subsequent reactions afforded trovacenyl carboxylic acid (η7-C7H7)V(η5-C5H4COOH) (2•) and its anhydride [(...