Reactions of laser-ablated rhodium atoms with O2.: Infrared spectra and DFT calculations for RhO, ORhO, (O2)RhO2, Rh2O2, Rh(O2) and (O2)Rh(O2) in solid argon

被引:37
作者
Citra, A [1 ]
Andrews, L [1 ]
机构
[1] Univ Virginia, Dept Chem, Charlottesville, VA 22901 USA
关键词
D O I
10.1021/jp990864a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Laser-ablated Rh atoms react to give RhO, the linear dioxide ORhO, the side-bound dioxygen adduct (O-2)RhO2, and several ORhO(O-2) complexes. In addition, a large number of Rh-x(O-2)(y) complexes are observed, but only Rh(O-2) and(O-2)Rh(O-2) can be identified with the support of DFT frequency calculations. These calculations also characterize (O-2)RhO2 as a peroxide with rhodium approaching the +6 oxidation state and (O-2)Rh(O-2) between a disuperoxo and diperoxo species. Comparisons among the Co, Rh, and Ir dioxygen systems are given.
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页码:4845 / 4854
页数:10
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