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REMPI mass spectrum of the OH radical in the gas phase

โœ Scribed by R. Forster; H. Hippler; K. Hoyermann; G. Rohde; Lawrence B. Harding

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
354 KB
Volume
183
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The resonance-enhanced multiphoton ionization (REMPI) of the OH radical in the gas phase was studied using an isothermal discharge-flow reactor for the production of OH radicals (H+NO,+OH+NO), tunable laser light from an excimer-pumpeddye laser, and a time-of-flight (TOF) mass spectrometer. A mass-resolved REMPI spectrum was found in the wavelength region of 290-3 10 nm, which is assigned to a (3 + I ) ionization process. An ab initio quantum-chemical calculation predicts the Rydberg state, verified by the experiment.

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