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首页> 外文期刊>Journal of photochemistry and photobiology, C. Photochemistry reviews >Pressure effect on the absorption and photodissociation of O_2 near the dissociation threshold
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Pressure effect on the absorption and photodissociation of O_2 near the dissociation threshold

机译：压力对解离阈值附近O_2的吸收和光解离的影响

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摘要

The absorption and photodissociation of O_2 in the UV wavelength region, which result in O_3 formation in the atmosphere, are investigated. The relevant absorption is due to Herzberg states, whose forbidden character is partly mitigated under the pressurized condition. The formation of odd oxygen species under pressurized conditions is possible even in the wavelength region longer than the dissociation threshold at 242.4 nm, and its mechanism is discussed. The latter is responsible for the initiation of the laser-induced oxidation of hydrocarbons in hydrocarbon/O_2/supercritical CO_2 mixtures at 248 nm.
机译：研究了O_2在紫外波长区域的吸收和光解离，从而导致大气中形成O_3。相关的吸收归因于赫兹伯格状态，在加压条件下，其禁忌特性得到部分缓解。即使在比在242.4nm处的解离阈值更长的波长区域中，也可能在加压条件下形成奇数氧物种，并讨论了其机理。后者负责在248 nm处引发激光诱导的烃/ O_2 /超临界CO_2混合物中烃的氧化。

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