Bond-forming reactions of dications: Production of ArO+ and ArO2+ in the reaction of Ar2+ with O2

Abstract

Articles you may be interested inVibrational mode and collision energy effects on reaction of H 2 CO + with C 2 H 2 : Charge state competition and the role of Franck-Condon factors in endoergic charge transfer Probes of spin conservation in heavy metal reactions: Experimental and theoretical studies of the reactions of Re + with H 2 , D 2 , and HD Theoretical study of the reactions of Ar + +H 2 and Ar + +HD using the trajectory surface hopping method We present cross sections as a function of the collision energy for the bond-forming reactions of argon dications with oxygen molecules, producing ArO 2ϩ ϩO and ArO ϩ ϩO ϩ , respectively. Both the reactions are exothermic, and have cross sections much smaller than those of the competitive charge-transfer processes. The low-lying electronic states of ArO 2ϩ have been calculated at the MR-AQCC/cc-pV5Z level. In contrast to previous results we found that the ground 3 ⌺ Ϫ state has a local minimum. However, the estimated lifetime of this metastable state is too short to be detected in our setup. Thus the observed ArO 2ϩ ions must be in the higher-lying 1 ⌬ or 1 ⌺ ϩ states.

Infrared spectroscopy of CHCl2+ molecular dications

“…The formation of doubly charged products in reactions of dications with neutral molecules was for a long time considered to represent exotic and usually low-populated reaction channels [9][10][11]. The reason stems from the fact that the initial encounter complex between the molecular dication and a neutral molecule/ atom can usually dissociate along many possible fragmentation pathways that lead to singly charged products.…”

Gas-phase proton transfer from dications: Coulombic repulsion between reaction products in C60H2++B (B=C3H3N, HCN and CO)

“…We are interested in using computation to assess the structure, energetics and reactivity of gas-phase dications and other multiply charged ions [5][6][7][8][9][10]. In particular, we have examined potential energy surfaces for proton transfer from NeH + to the LaO + cation to form the dication LaOH 2+ [6].…”

The formation of NO+ from the reaction of N22+ with O2

“…80,[82][83][84][85][86][87][88] As described above, the majority of the observed bondforming reactions of dications involve the formation of a pair of monocationic products. However, recently an alternative form of dicationic bond-forming reactivity has been detected involving the formation of doubly charged products: 69,86,[89][90][91][92] …”