A NOVEL DIAMAGNETIC DIRUTHENIUM(III) COMPLEX BRIDGED BY 4 UNSYMMETRICAL CARBOXYLATE-TYPE LIGANDS - SYNTHESIS, MOLECULAR-STRUCTURE, ELECTROCHEMISTRY, AND SPECTROELECTROCHEMISTRY OF RU2(PFAP)4(C-EQUIVALENT-TO-CC6H5)2, WHERE PFAP IS 2,3,4,5,6-PENTAFLUORO-2-ANILINOPYRIDINATE