Theoretical Studies on Reaction Mechanisms of HNCS with NH(X^3Σ)
Theoretical Studies on Reaction Mechanisms of HNCS with NH(X^3Σ)作者机构:Chemistry Depatrment of Hainan Normal University Haikou 571158 P. R. China Institute of Functional Material Chemistry Faculty of ChemistryNortheast Normal University Changchun 130024 P. R. China
出 版 物:《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))
年 卷 期:2006年第22卷第5期
页 面:635-638页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
主 题:HNCS NH(X^3∑) Reaction mechanism Density functional theory(DFT)
摘 要:The reaction mechanisms of HNCS with NH(X^3∑ ) were theoretically investigated. The minimum energy paths (MEP) of the reaction were calculated by using the density functional theory(DFT) at the B3LYP/6-311 + + G^** level. The equilibrium structural parameters, the harmonic vibrational frequencies, the total energies, and the zeropoint energies(ZPE) of all the species were calculated. The single-point energies along the MEP were further refined at the QCISD(T)/6-311 + + G^* * level. It was found that the mechanisms of the HNCS + NH(X^3∑) reaction involve two channels producing the HNC + HNS and the N2H2 + CS products. Channel 1 plays a dominant role and the HNC + HNS are the main preduets. The reaction is exothermie.