A Rare (mu)3-(eta)1,(eta)2 Peroxo Bridge between Two CoIIIPbII Dinuclear Units and Hydrolytic Conversion into a Hydroxo-Bridged CoIIIPbII Complex

ESR spectroscopy was used to investigate the nature of active site of CrO/SiO2 in propane dehydrogenation reaction and Cr species was proposed to be the active site for the reaction.