期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
C(~3P)+NO(X^2Ⅱ)→CN(X^2∑^+)+O(~3P)反应的矢量相关研究(英文) 被引量:2
1
作者 马建军 丛书林 《原子与分子物理学报》 CAS CSCD 北大核心 2009年第6期1073-1081,共9页
采用准经典轨线方法研究了三个不同碰撞能下,反应C(~3P)+NO(X^2Ⅱ)→CN(X^2∑^+)+O(~3P)在Nyman等拟合的两个势能面(~2A″和~2A′)上反应物与产物之间的矢量相关.结果表明在两个势能面上产物的转动角动量矢量不仅取向,而且沿着y轴垂直... 采用准经典轨线方法研究了三个不同碰撞能下,反应C(~3P)+NO(X^2Ⅱ)→CN(X^2∑^+)+O(~3P)在Nyman等拟合的两个势能面(~2A″和~2A′)上反应物与产物之间的矢量相关.结果表明在两个势能面上产物的转动角动量矢量不仅取向,而且沿着y轴垂直于散射平面定向,产物的角动量定向依赖于碰撞能和势能面.同时,计算的四个重整化极化依赖微分截面显示产物在三个散射角被强烈极化,这与在两个势能面上的三个过渡态有关. 展开更多
关键词 立体反应动力学 准经典轨线 矢量相关
下载PDF
H+HLi体系同位素取代反应准经典轨线理论研究 被引量:1
2
作者 李琦 王艳洁 +2 位作者 刘新国 宋俊美 王田田 《山东师范大学学报(自然科学版)》 CAS 2016年第2期71-76,共6页
Li H分子在宇宙形成的过程中起着十分重要的作用,它是少数参与整个气相化学反应的分子之一.H+HLi体系只有5个电子,是除了H3体系外最简单的中性的三原子体系,但是具有许多复杂的性质.作者基于最新Li H2体系的高精度基态势能面,通过研究H+... Li H分子在宇宙形成的过程中起着十分重要的作用,它是少数参与整个气相化学反应的分子之一.H+HLi体系只有5个电子,是除了H3体系外最简单的中性的三原子体系,但是具有许多复杂的性质.作者基于最新Li H2体系的高精度基态势能面,通过研究H+HLi反应的同位素替代来深入地了解它的反应特性.作者利用了准经典轨线方法计算了P(θr)、P(r)不同碰撞能下两种同位素替代反应D+HLi、H+DLi的反应特征.作者对计算结果进行分析讨论,发现碰撞能对上述两种替代反应都是有影响的,并且H+DLi替代反应受到的影响更为明显.当碰撞能从10 kcal/mol逐步增加到40 kcal/mol时,产物的定向增强了、取向减弱了,且前向散射与侧向散射的强度都呈现无规律变化. 展开更多
关键词 H+HLi 同位素效应 立体反应动力学 准经典轨线
下载PDF
Quasi-classical Trajectory Study of C+CD--C2+D at Different Collision Energy
3
作者 石英 解廷献 金明星 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2011年第4期373-377,I0003,共6页
Quasi-classical trajectory calculations have been employed to investigate the influence of collision energy on the stereodynamics of the title reaction C+CD--~C2+D on the poten- tial energy surface of the 12AI state... Quasi-classical trajectory calculations have been employed to investigate the influence of collision energy on the stereodynamics of the title reaction C+CD--~C2+D on the poten- tial energy surface of the 12AI state developed by Boggio-Pasqua et al. [Mol. Phys. 98, 1925 (2000)]. The product angular distributions which reflect the vector correlation have been calculated. In addition, two polarization-dependent different cross-sections are also presented in the center-of-mass frame respectively. The results indicate that the product C2 is sensitively affected by collision energy. 展开更多
关键词 Quasi-classical trajectory dent generalized differential cross-section Stereodynamics calculation Polarization depenStereodynamics
下载PDF
Advanced Techniques for Quantum-State Specific Reaction Dynamics of Gas Phase Metal Atoms
4
作者 Ang Xu Yu-jie Ma +3 位作者 Dong Yan Fang-fang Li Jia-xing Liu Feng-yan Wang 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2021年第1期61-70,I0011,共11页
One of the themes of modern molecular reac tion dynamics is to charac terize elementary chemical reactions from“quan tum state to quan tum stat e”,and the study of molecular reaction dynamics in excited states can h... One of the themes of modern molecular reac tion dynamics is to charac terize elementary chemical reactions from“quan tum state to quan tum stat e”,and the study of molecular reaction dynamics in excited states can help test the validi ty of modern chemical t heories and provide met hods to cont rol chemical reactions.The subject of this review is to describe the recent experimental techniques used to study the reaction dynamics of metal atoms in the gas phase.Through these techniques,information such as the internal energy distribution and angular distribution of the nascent products or the three-dimensional stereodynamic reactivity can be obtained.In addition,by preparing metal at oms wi th specific exci ted elec tronic states or orbi tal arrangemen ts,information about the reactivity of the electronic states enriches the relevant understanding of the electron transfer mechanism in metal reaction dynamics. 展开更多
关键词 Time-sliced ion velocity map imaging Crossed molecular beams Laser ablation Metal atom reaction dynamics STEREODYNAMICS
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部