Infrared Photodissociation Spectroscopy of Mass-Selected Cu2O2(CO)n+ Clusters in the Gas Phase

Ke Xin; Yinjuan Chen; Luning Zhang; Xuefeng Wang; Guanjun Wang

doi:10.1021/acs.jpca.0c01813

Infrared Photodissociation Spectroscopy of Mass-Selected Cu₂O₂(CO)_n⁺ Clusters in the Gas Phase

J Phys Chem A. 2020 May 14;124(19):3859-3864. doi: 10.1021/acs.jpca.0c01813. Epub 2020 Apr 30.

Authors

Ke Xin¹, Yinjuan Chen¹, Luning Zhang¹, Xuefeng Wang¹, Guanjun Wang²

Affiliations

¹ School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China.
² Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, 2005 Songhu Road, Shanghai 200433, China.

PMID: 32298580
DOI: 10.1021/acs.jpca.0c01813

Abstract

Stoichiometric Cu₂O₂(CO)_n⁺ (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)_n⁺ complexes were formed by a dicopper superoxide carbonyl with [(OC)_xCuOOCu(CO)_y]⁺ (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.