Femtosecond pump-probe studies of nitrosyl chloride photochemistry in solution.

Femtosecond pump-probe studies of nitrosyl chloride photochemistry in solution. Research Abstract Details 

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Femtosecond pump-probe studies of nitrosyl chloride photochemistry in solution. Abstract Text:

Catherine C Cooksey,Kevin J Johnson,Philip J Reid,

We present a femtosecond pump-probe study of the primary events of nitrosyl chloride (ClNO) photochemistry in solution. Following 266 nm photolysis, the resulting evolution in optical density is measured for ClNO dissolved in acetonitrile, chloroform, and dichloromethane. The results demonstrate that photolysis results in the production of a photoproduct that has an absorption band maximum at 295 nm in acetonitrile and 330 nm in chloroform and dichloromethane. To determine the extent of Cl production, comparative photochemical studies of methyl hypochlorite (MeOCl) and ClNO are performed. Photolysis of MeOCl in solution results in the production of the Cl:solvent charge-transfer complex; therefore, a comparison of the spectral evolution observed following MeOCl and ClNO photolysis under identical photolysis conditions is performed to determine the extent of Cl production following ClNO photolysis. We find that similar to the gas-phase photochemistry, Cl and NO formation is the dominant photochemical channel in acetonitrile. However, the photochemistry in chloroform and dichloromethane is more complex, with a second product formed in addition to Cl and NO. It is proposed that in these solvents photoisomerization also occurs, resulting in the production of ClON. The results presented here represent the first detailed examination of the solution phase photochemistry of ClNO.

Femtosecond pump-probe studies of nitrosyl chloride photochemistry in solution. Publishing Authors By Initials

CC Cooksey,KJ Johnson,PJ Reid,

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Femtosecond pump-probe studies of nitrosyl chloride photochemistry in solution. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The journal of physical chemistry. A

VOLUME: 110

Page Numbers: 8613-22

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ISSN: 1089-5639

DAY: 20

MONTH: Jul

YEAR: 2006

Femtosecond pump-probe studies of nitrosyl chloride photochemistry in solution. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Femtosecond pump-probe studies of nitrosyl chloride photochemistry in solution.

AFFILIATION: Box 351700, Department of Chemistry, University of Washington, Seattle, Washington 98195, USA.

Country: United States

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MEDLINETA: J Phys Chem A

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