Infrared Photodissociation Spectroscopy of Mass-Selected Cu2O2(CO)+ Clusters in the Gas Phase
Ke Xin1, Yinjuan Chen1, Luning Zhang1
1School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China.
Abstract:
Stoichiometric Cu2O2(CO)+ (n = 3-7) clusters were generated via a laser vaporization supersonic cluster source in the gas phase and identified by infrared photodissociation spectroscopy in the C-O stretching region. The infrared spectra were interpreted, and the cluster structures were determined by density functional calculations. The ground states of the Cu2O2(CO)+ complexes were formed by a dicopper superoxide carbonyl with [(OC)CuOOCu(CO)]+ (x + y = n) structures in which the CO ligands coordinate a zigzag Cu(OO)Cu+ core. The structural characterization for the Cu(OO)Cu+ core-based clusters is crucial in order to correctly understand the associated reactions catalyzed by metal clusters.
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