臭氧光化学的最新进展：Lambda双重态倾向和自旋禁止通道。

IF 11.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Annual review of physical chemistry Pub Date : 2025-01-21 DOI:10.1146/annurev-physchem-082423-124349

Megan N Aardema, Simon W North

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引用次数: 0

摘要

近年来对哈特利带和哈金斯带臭氧光解作用的研究为臭氧光解动力学和产物态分布提供了新的认识。通过实验和理论已经确定了光解的Λ-doublet倾向是振荡O2（a1Δg）旋转分布的起源，并为确定3A'和3A″态在Huggins带自旋禁止过程中的相对贡献提供了有希望的诊断。最近关于禁止自旋离解的实验提供了关于O2产物的振动和旋转分布以及O2电子态之间分支比的详细信息，为高层次的理论提供了动力。

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Recent Advances in Ozone Photochemistry: A Lambda Doublet Propensity and Spin-Forbidden Channels.

Recent studies on ozone photodissociation in the Hartley and Huggins bands have provided new insights into the dissociation dynamics and product state distributions. A Λ-doublet propensity in the photodissociation has been identified through experiment and theory as the origin of the oscillatory O₂(a1Δ_g) rotational distributions and provides a promising diagnostic for determining the relative contributions of 3A' and 3A″ states in Huggins band spin-forbidden processes. Recent experiments on spin-forbidden dissociation have provided detailed information about the vibrational and rotational distributions of the O₂ products and the branching ratios between the O₂ electronic states, serving as a motivation for high-level theory.

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来源期刊

Annual review of physical chemistry 化学-物理化学

CiteScore

28.00

自引率

0.00%

发文量

期刊介绍： The Annual Review of Physical Chemistry has been published since 1950 and is a comprehensive resource for significant advancements in the field. It encompasses various sub-disciplines such as biophysical chemistry, chemical kinetics, colloids, electrochemistry, geochemistry and cosmochemistry, chemistry of the atmosphere and climate, laser chemistry and ultrafast processes, the liquid state, magnetic resonance, physical organic chemistry, polymers and macromolecules, and others.