Sonoluminescence from metal carbonyls

Kenneth S. Suslick, Edward B. Flint, Mark W. Grinstaff, Kathleen A. Kemper

Research output: Contribution to journalArticlepeer-review

Abstract

Spectrally resolved sonoluminescence is observed from the ultrasonic irradiation of organometallic compounds in silicone oil solutions. Specifically, ultrasonic irradiation of solutions of Fe(CO)5, Cr(CO)6, Mo(CO)6, and W(CO)6 produces atomic line emission from metal atom excited states. The intensity of this sonoluminescence is the highest yet observed. Sonoluminescence arises from acoustic cavitation (the formation, growth, and implosive collapse of bubbles), which produces localized hot spots with extreme temperatures and pressures and very short lifetimes. The mechanism proposed for this observed sonoluminescence invokes the extreme temperatures created during acoustic cavitation to strip carbon monoxide from the metal complexes and to thermally populate electronic excited states of the metal atoms.

Original languageEnglish (US)
Pages (from-to)3098-3099
Number of pages2
JournalJournal of physical chemistry
Volume97
Issue number13
DOIs
StatePublished - 1993

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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