首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >B3LYP and CCSD(T) Studies of the Mechanisms of Unimolecular Reactions of HXCS (X = H and F)
【24h】

B3LYP and CCSD(T) Studies of the Mechanisms of Unimolecular Reactions of HXCS (X = H and F)

机译:B3LYP和CCSD(T)研究HXCS(X = H和F)的单分子反应机理

获取原文
获取原文并翻译 | 示例
           

摘要

The potential energy surface for the decomposition of singlet HXCS (X = H and F) has been explored by B3LYP and CCSD(T) calculations. Five different types of reaction are proposed: (A) 1,1-HX elimination, (B) 1,2-H shift, (C) 1,2-X shift, (D) H· and XCS· radical formation, and (E) X· and HCS· radical formation. These results show interesting trends for the HXCS isomers. Our theoretical investigations suggest that the doubly bonded species HXC=S is the lowest energy structure among the isomers from both kinetic and thermodynamic viewpoints. We also report theoretical predictions of molecular parameters and vibrational IR spectra of the monohalogen substituted thioformaldehyde, which should be useful for future experimental observations.
机译:通过B3LYP和CCSD(T)计算,探索了单线态HXCS分解的势能面(X = H和F)。提出了五种不同类型的反应:(A)1,1-HX消除,(B)1,2-H移位,(C)1,2-X移位,(D)H·和XCS·自由基形成,以及(E)X·和HCS·自由基的形成。这些结果显示了HXCS异构体的有趣趋势。我们的理论研究表明,从动力学和热力学角度来看,双键物种HXC = S是异构体中最低的能量结构。我们还报告了单卤素取代的硫代甲醛的分子参数和振动红外光谱的理论预测,这将对将来的实验观察有用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号