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Experimental and theoretical investigations of ionization/dissociation of cyclopentanone molecule in a femtosecond laser field
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10.1063/1.3006028
/content/aip/journal/jcp/129/20/10.1063/1.3006028
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/20/10.1063/1.3006028

Figures

Image of FIG. 1.
FIG. 1.

Mass spectra of cyclopentanone interacted with laser pulses at for four different intensities: (a) , (b) , (c) , and (d) . The asterisk denotes the parent ion.

Image of FIG. 2.
FIG. 2.

Mass spectra of cyclopentanone interacted with laser pulses at for four different intensities: (a) , (b) , (c) , and (d) . The asterisk denotes the parent ion.

Image of FIG. 3.
FIG. 3.

Relative ion yields of parent and main fragments ions as a function of laser intensity. The wavelength is . A linear fit through the data points is shown as the solid line. Notice the approach to saturation of the parent ion signal for intensities in the region of .

Image of FIG. 4.
FIG. 4.

Relative ion yields of parent and main fragments ions as a function of laser intensity. The wavelength is . In the same way, a linear fit through the data points is shown as the solid line. The saturation of the parent ion signal for intensities occurs in the same region of .

Image of FIG. 5.
FIG. 5.

Keldysh parameter as a function of laser intensity ranging from for 394 and .

Image of FIG. 6.
FIG. 6.

Calculation results for first ionization rate constants of cyclopentanone by using various theories, where g-KFR represents the generalized KFR theory. (a) ; (b) .

Image of FIG. 7.
FIG. 7.

Calculation results for second ionization rate constants of cyclopentanone by using various theories, where g-KFR represents the generalized KFR theory. (a) ; (b) .

Image of FIG. 8.
FIG. 8.

Comparison of relative ion yields between experimental and theoretical results. (a) ; (b) . The dot represents experimental result of while the line corresponds to theoretical one. The dashed denotes the theoretical prediction of the ion yield for .

Image of FIG. 9.
FIG. 9.

Conventional mass spectrum for cyclopentanone provided by the NIST Chemistry WebBook (Ref. 36). The asterisk denotes the parent ion.

Image of FIG. 10.
FIG. 10.

Major channels of the dissociation mechanism of .

Image of FIG. 11.
FIG. 11.

H, , and elimination channels from .

Image of FIG. 12.
FIG. 12.

Calculated branching ratios in dissociation of : (a) starting from i1; (b) starting from i6.

Image of FIG. 13.
FIG. 13.

Mechanism of relaxation of from the first excited electronic state.

Image of FIG. 14.
FIG. 14.

Secondary dissociation channels of (a) and (b).

Image of FIG. 15.
FIG. 15.

Calculated branching ratios in dissociation of (2).

Image of FIG. 16.
FIG. 16.

Dissociation mechanism of .

Image of FIG. 17.
FIG. 17.

Calculated branching ratios in dissociation of .

Tables

Generic image for table
Table I.

Assignment of the observed peaks in the experimental mass spectra due to ionization/dissociation of cyclopentanone in a femtosecond laser field.

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/content/aip/journal/jcp/129/20/10.1063/1.3006028
2008-11-24
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental and theoretical investigations of ionization/dissociation of cyclopentanone molecule in a femtosecond laser field
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/20/10.1063/1.3006028
10.1063/1.3006028
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