Multimetallic redox reactions

After the seminal discovery of multimetallic sandwich compounds 231 and 232, several palladium [164], platinum [165], and Pd/Pt heterometallic [166] sandwich compounds belonging to the new and burgeoning family were synthesized and characterized. Furthermore, it was found that the assembly of the multimetallic core can be tuned intermolecularly [167] or intramolecularly [168] by redox reactions. It can be foreseen that this novel and unique family of compounds will flourish in the near future and find its own position in catalysis. 

Further studies on this system will include IR-SEC experiments under an atmosphere of CO to verify its catalytic activity for CO reduction and to aid in formulating a mechanism for the reaction. Other multimetallic systems used as CO reduction catalysts such as mthenium-, iridium-, and cobalt-based complexes, or metal clusters used as models in the active sites of biological systems, many of which have complex redox behavior can also be investigated using the IR-SEC technique. 

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