title: Noble-gas-induced disproportionation reactions: facile superoxo-to-peroxo conversion on chromium dioxide.
abstract: Laser-evaporated chromium atoms are shown to insert into dioxygen to form CrO 2 in solid argon. Annealing allows diffusion and reactions to form (eta (2)-O 2) 2CrO 2, which is characterized as [(O 2 (-)) 2(CrO 2) (2+)], a side-on bonded disuperoxo-chromium dioxide complex. The (eta (2)-O 2) 2CrO 2 complex further reacts with xenon atom doped in solid argon to give (eta (1)-OO)(eta (2)-O 2)CrO 2(Xe), which can be regarded as an O 2 molecule weakly interacting with [(O 2) (2-)(CrO 2) (2+)Xe], a side-on bonded peroxo-chromium dioxide-xenon complex. The results indicate surprisingly that xenon atom induces a disproportionation reaction from superoxo to peroxo and dioxygen complex.
authors: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Advanced Materials Laboratory, Fudan University, Shanghai 200433, PR China.
authors: Yanying
authors: Y
authors: Zhao
authors: Jing
authors: J
authors: Su
authors: Yu
authors: Y
authors: Gong
authors: Jun
authors: J
authors: Li
authors: Mingfei
authors: M
authors: Zhou