Dinuclear carbonyls matrix isolation

In this section, we outline a number of studies by various workers in which matrix isolation experiments have contributed to the understanding of some photochemical pathways and where the objective was to relate the experiments to room-temperature photochemistry. We then consider briefly some current problems involving dinuclear and polynuclear carbonyls. 

Matrix isolation has already provided a valuable insight into the behavior of dinuclear carbonyls. In the first experiments of this kind we were able (Z2) to show that, on photolysis in solid Ar, Fe2(CO)9 loses CO to form Fe2(C0)g in both bridged and unbridged forms and the behavior of these fragments was studied ... 

The photochemistry of more complex carbonyls that contain ligands other than CO has been stndied in some detail. Time-resolved IR spectroscopy has been nsed to stndy the photochemistry of the dinuclear carbonyl [CpFe(CO)2]2 (see Cydopentadienyl) in solution and the results of these experiments have been compared with those obtained from earlier matrix-isolation work. ... 

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