Eigenstate resolved infrared{endash}infrared double-resonance study of intramolecular vibrational relaxation in benzene: First overtone of the CH stretch

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.473205· OSTI ID:435120

Callegari, A; Srivastava, H K; Merker, U; Lehmann, K K; Scoles, G ^[1]; Davis, M J ^[2]

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1. Department of Chemistry, Princeton University, Princeton, New Jersey 08544 (United States)
2. Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

The first eigenstate resolved, near the infrared spectrum of benzene in the region of the first C{endash}H stretch overtone (6000 cm{sup {minus}1}) has been obtained with an IR{endash}IR double-resonance molecular beam optothermal spectrometer. Using a hierarchical tree analysis and level spacing statistics, we show that the intramolecular vibrational relaxation occurs nonergodically over at least seven different time scales ranging from 100 fs to 2 ns.{copyright} {ital 1997 American Institute of Physics.}

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 435120
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 1 Vol. 106; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
66 PHYSICS
BENZENE
DOUBLE RESONANCE METHODS
EIGENSTATES
HARMONICS
INFRARED SPECTRA
MOLECULAR BEAMS
NEAR INFRARED RADIATION
VIBRATIONAL STATES