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The reaction of dibenzoylmethane (HDBM) with [RuCl2(PPh3)3] in benzene in the presence of a supporting base (Et3N) under reflux gives two different complexes, the side product as a green-yellow Ru(III) compound of composition [RuIIICl2(DBM)(PPh3)2] (2) and the main product as a red Ru(II) complex of composition [RuII(DBM)2(PPh3)2] (3). The products were studied by spectroscopic methods, cyclic voltammetry...