Journal
CHEMICAL PHYSICS LETTERS
Volume 323, Issue 3-4, Pages 305-311Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0009-2614(00)00517-0
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have measured an ultraviolet action spectrum following excitation of cyanoacetylene between 212 and 264 nm. The low yield emission, principally to the red of 290 nm, is shown to be the product of multiphoton processes. Below 230 nm, secondary photolysis of metastable HC3N* yields electronically excited C3N. Metastable HC3N* can be monitored by separately exciting the metastables at 193 nm and then photodissociatively exciting them at 220 nm. The process leading to emission above 240 nm is more complex involving formation of a stable intermediate followed by its photodissociative excitation. (C) 2000 Elsevier Science B.V. All rights reserved.
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