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Theoretical investigation of the reaction of Mn+ with ethylene oxide.
作者:Y. Y. Li, W. Y. Guo, L. M. Zhao, Z. C. Liu, X. Q. Lu, H. H. Shan
關鍵字:Mn+,ethylene oxide
論文來源:期刊
具體來源:J. Phys. Chem. A
發表時間:2011年

The potential energy surfaces of Mn+ reaction with ethylene oxide in both

the septet and quintet states are investigated at the B3LYP/DZVP level of theory. The

reaction paths leading to the products of MnO+, MnO, MnCH2+, MnCH3, and MnH+are described in detail. Two types of encounter complexes of Mn+ with ethylene oxideare formed because of attachments of the metal at different sites of ethylene oxide, i.e.,the O atom and the CC bond. Mn+ would insert into a CO bond or the CC bond ofethylene oxide to form two different intermediates prior to forming various products.MnO+/MnO and MnH+ are formed in the CO activation mechanism, while bothCO and CC activations account for the MnCH2+/MnCH3 formation. Products MnO+, MnCH2+, and MnH+ could be formed adiabatically on the quintet surface, while formation of MnO and MnCH3 is endothermic on the PESs with both spins. In agreementwith the experimental observations, the excited state a5D is calculated to be more reactive than the ground state a7S. This theoreticalwork sheds new light on the experimental observations and provides fundamental understanding of the reaction mechanism of ethylene oxide with transition metal cations.

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