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恢复马库斯理论速率和超越无需无连贯性纠正:地图绘制方法到表面跳跃
Joseph E Lawrence1, Jonathan R Mannouch2, Jeremy O Richardson1
1Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland.
The journal of physical chemistry letters
|January 12, 2024
概括
表面跳转 (MASH) 的新映射方法准确地模拟了非adiabatic反应,克服了最少开关表面跳转 (FSSH) 的局限性,无需进行脱凝度校正.
科学领域:
- 量子化学是一种量子化学.
- 化学动力学 化学动力学
- 计算建模计算建模
背景情况:
- 最少开关表面跳跃 (FSSH) 在弱合极限中不准确地模拟速率常数.
- 对于FSSH而言,现有的脱凝度校正解决了波函数不一致性,但并不理想.
- 准确模拟非亚亚反应对于理解化学过程至关重要.
研究的目的:
- 调查地表跳跃 (MASH) 的映射方法对非adiabatic反应模拟的性能.
- 评估MASH在不同合模式中捕获速率常数行为的能力.
- 为了确定MASH是否可以在没有人工纠正的情况下重现已确定的理论极限.
主要方法:
- 开发并应用了绘图方法用于表面跳跃 (MASH) 模拟技术.
- 在表现出不连贯速率行为的系统上测试了MASH.
- 将MASH结果与马库斯理论和费米的黄金规则预测进行比较.
主要成果:
- MASH在表面之间决定性地跳跃,避免了FSSH固有的波函数不一致性.
- MASH准确地描述了中度和强度的糖尿病合率.
- 马什成功地复制了马库斯理论的结果,在没有脱凝度纠正的情况下达到黄金规则的限制.
结论:
- 在模拟非adiabatic反应方面,MASH比FSSH有显著的改进.
- 该方法正确地捕捉了速率恒定缩放,没有人工调整.
- MASH提供了一种更强大,更准确的方法来建模复杂的化学动态.
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