The competition between optical pumping and intramolecular vibrational relaxation in organometallics: A new chromium Rydberg series

Jeanne M. Hossenlopp, Dan Rooney, Brian Samoriski, Greg Bowen, J. Chaiken

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We have measured the multiphoton ionization spectra of Cr(CO)6, Cr(CO)3C6H6, Cr(CO)3C6H5Cl, and Cr(CO)3C6H5CH3 in the region 355-365 nm. We have identified previously unassigned features, in particular, an even-parity 7S3 Rydberg series of neutral bare chromium atoms. From the assignment we have obtained an improved value for the ionization potential, the quantum defect and evidence for electron correlation and nuclear screening effects in the bare chromium atom. Coupled with assignments of other nearby spectral features we have also obtained the first evidence of intramolecular vibrational redistribution (IVR) competing with multiphoton up-pumping of organometallic molecules.

Original languageEnglish (US)
Pages (from-to)380-386
Number of pages7
JournalChemical Physics Letters
Volume116
Issue number5
DOIs
StatePublished - May 17 1985

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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