Kinetics of H-abstraction and addition of 2,4,4-trimethyl-2-pentene by OH rodical (PDF)
点击次数：
发布时间：2025-04-30
发布时间：2025-04-30
论文名称：Kinetics of H-abstraction and addition of 2,4,4-trimethyl-2-pentene by OH rodical (PDF)
发表刊物：Chem Phys Lett
摘要：The kinetics of H abstraction and addition reactions of 2,4,4-trimethyl-2-pentene by OH were determined by traditional and canonical variational transition state theory, with potential energy surfaces calculated at DLPNO-CCSD(T)/cc-pvtz//BHANDHLYP/6-311G(d, p) and CCSD(T)/6-311++G(d, p)//BHANDHLYP/6-311G(d, p) level. In addition, tunneling effects were corrected by zero-curvature and small-curvature and the microcanonical multidimensional tunneling methods. Results reveal that allylic H abstraction, with low energy barrier, dominants H abstraction reactions, which undergoes both indirect and direct channels. Moreover, OH addition reactions with submerged barriers exhibit negative temperature dependence. H abstraction reactions are significant above 750 K, while addition reactions are more important below 400 K.
合写作者：Yin GY, Hu EJ, Gao ZH, Yang FY, Huang ZH
卷号：2018, 696:125-134
页面范围：125-134
是否译文：否
发表时间：2018-03-16