Photofragmentation of C60

H. Hohmann; R. Ehlich; S. Furrer; O. Kittelmann; J. Ringling; E. E.B. Campbell

doi:10.1007/BF01437433

Photofragmentation of C₆₀

H. Hohmann, R. Ehlich, S. Furrer, O. Kittelmann, J. Ringling, E. E.B. Campbell

Department of Physics

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

84 Scopus citations

Abstract

Photo-ionisation and -fragmentation of C₆₀ by 15 ns excimer laser pulses at 308 nm and 193 nm as well as 0.8 ps laser pulses at 193 nm has been studied with reflectron time-of-flight mass spectrometry. The initial fragmentation process is ejection of C_n, n>2, as opposed to successive C₂ evaporation. Studies of the relative intensities of metastable fragmentation processes compared with direct fragmentation provide new insight into the fragmentation mechanism and provide a thermometer for the internal energy of C₆₀⁺ prior to fragmentation. The proposed mechanism is in agreement with measurements of the fragment ion kinetic energies. The results are compared with molecular dynamics simulations.

Original language	English
Pages (from-to)	143-151
Number of pages	9
Journal	Zeitschrift für Physik D Atoms, Molecules and Clusters
Volume	33
Issue number	2
DOIs	https://doi.org/10.1007/BF01437433
State	Published - Jun 1995

Keywords

33.80.Eh
33.90.+h
36.90.+f

Access to Document

10.1007/BF01437433

Cite this

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title = "Photofragmentation of C60",

abstract = "Photo-ionisation and -fragmentation of C60 by 15 ns excimer laser pulses at 308 nm and 193 nm as well as 0.8 ps laser pulses at 193 nm has been studied with reflectron time-of-flight mass spectrometry. The initial fragmentation process is ejection of Cn, n>2, as opposed to successive C2 evaporation. Studies of the relative intensities of metastable fragmentation processes compared with direct fragmentation provide new insight into the fragmentation mechanism and provide a thermometer for the internal energy of C60+ prior to fragmentation. The proposed mechanism is in agreement with measurements of the fragment ion kinetic energies. The results are compared with molecular dynamics simulations.",

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year = "1995",

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T1 - Photofragmentation of C60

AU - Hohmann, H.

AU - Ehlich, R.

AU - Furrer, S.

AU - Kittelmann, O.

AU - Ringling, J.

AU - Campbell, E. E.B.

PY - 1995/6

Y1 - 1995/6

N2 - Photo-ionisation and -fragmentation of C60 by 15 ns excimer laser pulses at 308 nm and 193 nm as well as 0.8 ps laser pulses at 193 nm has been studied with reflectron time-of-flight mass spectrometry. The initial fragmentation process is ejection of Cn, n>2, as opposed to successive C2 evaporation. Studies of the relative intensities of metastable fragmentation processes compared with direct fragmentation provide new insight into the fragmentation mechanism and provide a thermometer for the internal energy of C60+ prior to fragmentation. The proposed mechanism is in agreement with measurements of the fragment ion kinetic energies. The results are compared with molecular dynamics simulations.

AB - Photo-ionisation and -fragmentation of C60 by 15 ns excimer laser pulses at 308 nm and 193 nm as well as 0.8 ps laser pulses at 193 nm has been studied with reflectron time-of-flight mass spectrometry. The initial fragmentation process is ejection of Cn, n>2, as opposed to successive C2 evaporation. Studies of the relative intensities of metastable fragmentation processes compared with direct fragmentation provide new insight into the fragmentation mechanism and provide a thermometer for the internal energy of C60+ prior to fragmentation. The proposed mechanism is in agreement with measurements of the fragment ion kinetic energies. The results are compared with molecular dynamics simulations.

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KW - 33.90.+h

KW - 36.90.+f

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JO - Zeitschrift für Physik D Atoms, Molecules and Clusters

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