The structure determination of Ru3(CO)12 catalysts supported on inorganic oxides by means of EXAFS.

The structures and synergistic catalyses of FeRu/Al2O3 catalysts derived from FexRu3–x(CO)12(x= 0, 1, 2, 3). Part 1.—The structures of Al2O3-supported FexRu3–x(CO)12 clusters

“…and gas-phase analysis have shown that Fe,(CO),, and Ru,(CO),, react with the surface OH groups of A1,0, to form Fe,(CO),,(H)(OAl<)4 and Ru,(CO),,(H)(OAl < ) . , y 6 The chemical analysis of the gas phase during the deposition of Fe,Ru(CO),, or FeRu,(CO),, showed the evolution of two CO ligands (CO or CO + CO,) per cluster molecule, similar to the cases of Fe,(CO),, and Ru,(CO),,. Thus the stoichiometry also suggests that the composition of the surface clusters is expressed by the formula Fe,Ru(CO),,(H)(OAl < ) or FeRu,(CO),,(H)(OAl <).…”