Long-lived vibrational modes in amino acid crystals probed by picosecond CARS spectroscopy

Thomas J. Kosic; Raymond E. Cline; Dana D. Dlott

doi:10.1016/0009-2614(83)87475-2

Long-lived vibrational modes in amino acid crystals probed by picosecond CARS spectroscopy

Thomas J. Kosic, Raymond E. Cline, Dana D. Dlott

Research output: Contribution to journal › Article › peer-review

Abstract

Vibrational relaxation is measured in amino acid crystals at various temperatures by picosecond CARS spectroscopy. Low-frequency (40-125 cm^-1) torsional modes, librons, have lifetimes which can exceed 4 ns. The decrease in lifetime with libron frequency and with temperature is determined primarily by the density of states, which shifts to lower frequency in peptide crystals.

Original language	English (US)
Pages (from-to)	109-114
Number of pages	6
Journal	Chemical Physics Letters
Volume	103
Issue number	2
DOIs	https://doi.org/10.1016/0009-2614(83)87475-2
State	Published - Dec 23 1983

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General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/0009-2614(83)87475-2

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title = "Long-lived vibrational modes in amino acid crystals probed by picosecond CARS spectroscopy",

abstract = "Vibrational relaxation is measured in amino acid crystals at various temperatures by picosecond CARS spectroscopy. Low-frequency (40-125 cm-1) torsional modes, librons, have lifetimes which can exceed 4 ns. The decrease in lifetime with libron frequency and with temperature is determined primarily by the density of states, which shifts to lower frequency in peptide crystals.",

author = "Kosic, {Thomas J.} and Cline, {Raymond E.} and Dlott, {Dana D.}",

note = "Funding Information: This research was funded by the National Science Foundation, Division of Materials Research_ The PDP 11 minicomputer was provided by the Materials Re- search Laboratory of the University of IIlinois. We thank Peter G. Wolynes for suggesting the application of the picosecond CAR!5 technique to macromolecules, and Hans Frauenfelder for a critical reading of the manuscript_",

year = "1983",

month = dec,

day = "23",

doi = "10.1016/0009-2614(83)87475-2",

language = "English (US)",

volume = "103",

pages = "109--114",

journal = "Chemical Physics Letters",

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publisher = "Elsevier B.V.",

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T1 - Long-lived vibrational modes in amino acid crystals probed by picosecond CARS spectroscopy

AU - Kosic, Thomas J.

AU - Cline, Raymond E.

AU - Dlott, Dana D.

N1 - Funding Information: This research was funded by the National Science Foundation, Division of Materials Research_ The PDP 11 minicomputer was provided by the Materials Re- search Laboratory of the University of IIlinois. We thank Peter G. Wolynes for suggesting the application of the picosecond CAR!5 technique to macromolecules, and Hans Frauenfelder for a critical reading of the manuscript_

PY - 1983/12/23

Y1 - 1983/12/23

N2 - Vibrational relaxation is measured in amino acid crystals at various temperatures by picosecond CARS spectroscopy. Low-frequency (40-125 cm-1) torsional modes, librons, have lifetimes which can exceed 4 ns. The decrease in lifetime with libron frequency and with temperature is determined primarily by the density of states, which shifts to lower frequency in peptide crystals.

AB - Vibrational relaxation is measured in amino acid crystals at various temperatures by picosecond CARS spectroscopy. Low-frequency (40-125 cm-1) torsional modes, librons, have lifetimes which can exceed 4 ns. The decrease in lifetime with libron frequency and with temperature is determined primarily by the density of states, which shifts to lower frequency in peptide crystals.

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Long-lived vibrational modes in amino acid crystals probed by picosecond CARS spectroscopy

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