Photodissociation, photolysis, photodecomposition, or photofragmentation is a chemical reaction in which molecules of a chemical compound are broken down by absorption of light or photons. It is defined as the interaction of one or more photons with one target molecule that dissociates into two …

Photodissociation is a chemical reaction that degrades compounds by bombarding the molecule with photons. Photolysis is the type of photodissociation wherein a compound is decomposed by light or other forms of radiant energy.

Photodissociation (i.e., separation due to the energy of light) of water vapour into molecular hydrogen (H 2) and molecular oxygen (O 2) in the upper atmosphere allowed the hydrogen to escape and led to a progressive increase of the partial pressure of …

光解 （photolysis 或 photodissociation）指 化合物 的 分子 被 光能 辐射 后 化学键 发生分解变化的 化學反應。 臭氧 被光分解成了氧分子和一個處於激發態的氧原子 O 1 D。 這一氧原子會和空氣中的水分子作用而生成氫氧根： 這些氫氧根會氧化 碳氫化合物，因而有如同清潔劑的效果。 這是 對流層 中的臭氧形成的主要化學作用。

2023年7月20日 · Photodissociation can occur when the energy of the absorbed photon exceeds the lowest bond dissociation energy in a molecule or complex, but it always proceeds in competition with other relaxation pathways such as radiative decay (e.g., emission of fluorescence) or quenching by interaction with the molecule’s surroundings.

photodissociation，英语单词，主要用作名词，作名词时译为“光离解”。 [1] photodissociation laser 光离解激光器 ; 光致离解激光器. Photodissociation spectroscopy 光解离光谱. photodissociation dynamics 光解动力学. Photodissociation Constant 光解作用常数. Photodissociation ionization 光解离电离. lsaer photodissociation 激光光解离. photodissociation spectrum 光解离光谱. resonant photodissociation 非共振光解.

2021年4月30日 · Here, we provide experimental evidence of three-body dissociation (TBD) of H 2 O to produce O atoms in both 1 D and 3 P states upon VUV excitation using a tunable VUV free electron laser....

Photodissociation refers to the process in which a molecule is excited to a repulsive state by absorbing photons and subsequently breaks apart into multiple fragments. This process has been extensively studied due to its simplicity and the availability of information about gas-phase photodissociation processes.

Photodissociation is the fragmentation of an ion upon the absorption of light (photon). There can be absorption of one photon or many photons with wavelengths ranging from the infrared to vacuum ultraviolet. The energy deposited in the ion from one photon ranges from 0.1 eV from a CO 2 laser, to 3.5 eV from a Xenon-fluoride excimer laser.

Photodissociation, photolysis, or photodecomposition is a chemical reaction in which a chemical compound is broken down by photons. One or more photons interact with the target molecule. Photodissociation is not limited to visible light. Any photon with sufficient energy can affect the chemical bonds of a chemical compound.