Resonance ionization spectroscopy of molecules, clusters, and ions. Annual technical progress report

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Description

High resolution photoionization and fluorescence excitation spectra of dimers of the aromatic molecule fluorene (C{sub 13}H{sub 12}){sub 2} reveal complex excitonic interactions. Comparison of results for isotopically pure and isotopically mixed dimers provide the information necessary to analyze the spectra in terms of intermolecular motion on two perturbed adiabatic potential surfaces. The intermolecular force field on the lower surface is characterized by a perturbed quartic potential, whereas the upper surface is characterized by a displaced quadratic potential. The results provide the first detailed experimental description of strong coupling between an intermolecular coordinate and the excitonic state of a molecular dimer.

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12 p.

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Wessel, J. July 14, 1993.

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Description

High resolution photoionization and fluorescence excitation spectra of dimers of the aromatic molecule fluorene (C{sub 13}H{sub 12}){sub 2} reveal complex excitonic interactions. Comparison of results for isotopically pure and isotopically mixed dimers provide the information necessary to analyze the spectra in terms of intermolecular motion on two perturbed adiabatic potential surfaces. The intermolecular force field on the lower surface is characterized by a perturbed quartic potential, whereas the upper surface is characterized by a displaced quadratic potential. The results provide the first detailed experimental description of strong coupling between an intermolecular coordinate and the excitonic state of a molecular dimer.

Physical Description

12 p.

Notes

OSTI as DE99000265

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  • Other Information: PBD: 14 Jul 1993

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  • Other: DE99000265
  • Report No.: DOE/ER/60391--T2
  • Grant Number: FG03-86ER60391
  • DOI: 10.2172/674618 | External Link
  • Office of Scientific & Technical Information Report Number: 674618
  • Archival Resource Key: ark:/67531/metadc703530

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  • July 14, 1993

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 6, 2015, 4:29 p.m.

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Wessel, J. Resonance ionization spectroscopy of molecules, clusters, and ions. Annual technical progress report, report, July 14, 1993; United States. (digital.library.unt.edu/ark:/67531/metadc703530/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.