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Laser photoionization of aromatic hydrocarbons in micellar solution

✍ Scribed by Stephen C. Wallace; M. Grätzel; J.K. Thomas

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
281 KB
Volume
23
Category
Article
ISSN
0009-2614

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✦ Synopsis

The 347.1 nrn ruby laser photolysis of aromatic hydrocarbons such as pyrcnc, triphcnylenc and pcrylene solubilixd in aqueous miccllnr solutions yields relatively h&h yields of ions (hydrated electrons and solute cations). The ionization process is biphotonic.

In rhe case of triphenylene the yield of hydrated electrons decrenscs sharply with increasing chain length of the micellized surfactant molecules. This effect is less pronounced or absent in the photoionization of pyrene or perylene. The results are interpreted in terms of energy loss of photoelectrons in tie hydrocarbon phase of micclles.

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