Fast Photodynamics of Aqueous Formic Acid

Jan Thogersen; Svend Knak Jensen; Ove Christiansen; Soren R.Keiding

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Fast Photodynamics of Aqueous Formic Acid

机译：甲酸水溶液的快速光动力学

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Femtosecond transient absorption spectroscopy is used to investigate the primary reaction dynamics of aqueous formic acid,HCOOH(aq),following the photoexcitation of the n->pi~* transition at 200 nm.Using probe pulses covering the spectral range from 200 to 620 nm,we find that the only detectable photoproduct is the OH radical,which suggests that HCOOH(aq)dissociates predominantly into the HCO+OH channel.The absence of signals assignable to the formyl radical is discussed,and the properties of hydrated formyl radicals are investigated using high-level electronic structure calculations.

机译：飞秒瞬态吸收光谱用于研究在200 nm处n-> pi〜*跃迁的光激发后甲酸HCOOH（aq）水溶液的主要反应动力学。使用覆盖200至620 nm光谱范围的探针脉冲，我们发现唯一可检测到的光产物是OH自由基，这表明HCOOH（aq）主要分解成HCO + OH通道。讨论了没有可分配给甲酰基的信号，并研究了水合甲酰基的性质使用高级电子结构计算。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2004年第37期|共7页
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Jan Thogersen; Svend Knak Jensen; Ove Christiansen; Soren R.Keiding;
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1. Fast Photodynamics of Aqueous Formic Acid [J] . Jan Thogersen, Svend Knak Jensen, Ove Christiansen, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2004,第37期

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8. Energetics Transfer in the Photodynamic Reactions. I. Photodynamic Sensitivity of the Retina. II. Photodynamic Action and Cancer. III. Photochemical Synthesis of Amino Acids in Abiogenic Conditions [R] . Santamaria, L. 1965

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Fast Photodynamics of Aqueous Formic Acid

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