The Renner effect in the X 2A" and à 2A' electronic states of HSO/HOS.

The Renner effect in the X 2A" and à 2A' electronic states of HSO/HOS.
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HSO/HOS X 2A" 和 à 2A 电子态中的雷纳效应

DOI:
10.1021/jp406940w
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发表时间:
2013
期刊:
The journal of physical chemistry. A
影响因子:
--
通讯作者:
P. Jensen
P. Jensen
中科院分区:
--
文献类型:
--
作者:
R. I. Ovsyannikov;T. Hirano;P. Jensen

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本文对HSO/HOS的X <$2A ″和A <$2A ′电子态进行了理论研究。采用核价MR-SDCI+Q/[aug-cc-pCVQZ(S,O),aug-cc-pVQZ(H)]方法,从头计算了HSO/HOS体系X <$2A ″和A <$2A ′电子态的三维势能面,构造了近全局势能面.这些表面与我们的计算机程序DR结合,计算了X ~(12)A ″和A ~(12)A ′态的HSO/HOS转动振动能。这两种电子态都具有非线性平衡几何构型,在H-S-O和H-O-S线性构型下,它们都与2 Π态相关,表现出双Renner效应。由于Born-Oppenheimer近似的Rener相互作用破坏和HSO/HOS异构化作用的影响,目前对HSO/HOS的X → 2A″和A → 2A′电子态的旋振能量的DR计算变得复杂.计算出的能量一起报告与选定的状态的旋振波函数的分析。这些分析探讨的影响之间的相互作用,一方面,伦纳相互作用,另一方面,异构化隧穿的旋转振动动力学的HSO/HOS。
We report a theoretical investigation of the X̃2A″ and Ã2A′ electronic states of HSO/HOS. Three-dimensional potential energy surfaces for the X̃2A″ and Ã2A′ electronic states of HSO/HOS have been calculated ab initio by the core-valence MR-SDCI+Q/[aug-cc-pCVQZ(S,O),aug-cc-pVQZ(H)] method, and near-global potential energy surfaces have been constructed. These surfaces have been used, in conjunction with our computer program DR, for calculating HSO/HOS rovibronic energies in the electronic states X̃2A″ and Ã2A′. Both electronic states have nonlinear equilibrium geometries and they correlate with2Π states at the H–S–O and H–O–S linear configurations so that they exhibit the double Renner effect. The present DR calculation of the rovibronic energies for the X̃2A″ and Ã2A′ electronic states of HSO/HOS is complicated by the Renner-interaction breakdown of the Born–Oppenheimer approximation and by HSO/HOS isomerization. Calculated energies are reported together with analyses of the rovibronic wave functions for selected states. These analyses explore the interplay between the effects of, on one hand, Renner interaction and, on the other hand, isomerization tunneling in the rovibronic dynamics of HSO/HOS.
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