Dissociative ionization and coulomb explosion of molecular bromocyclopropane in an intense femtosecond laser field

Botong Liu; Yan Yang; Haitao Sun; Zhenrong Sun

doi:10.3390/molecules23123096

Dissociative ionization and coulomb explosion of molecular bromocyclopropane in an intense femtosecond laser field

Botong Liu
, Yan Yang^*
, Haitao Sun
, Zhenrong Sun

^*Corresponding author for this work

Institute for Advanced Study in Precision Spectroscopy

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

5 Scopus citations

Abstract

The dissociative ionization and Coulomb explosion of molecular bromocyclopropane (BCP) has been experimentally investigated by time-of-flight mass spectrum and dc-slice imaging technology. The sliced 2D images, kinetic energy releases and angular distributions of the fragment ions are obtained under the intense femtosecond laser fields (8.0 × 10¹³–2.0 × 10¹⁴ W/cm²). The results indicated that the low kinetic energy release (KER) components come from dissociative ionization of BCP⁺, while the high KER components come from Coulomb explosion of BCP²⁺. The chemical reaction path of BCP⁺ has been calculated by ab initio calculation, furthermore, the C-Br bond cleavage involved Coulomb explosion channels have been revealed, and the corresponding dehydrogenation mechanism has been confirmed.

Original language	English
Article number	3096
Journal	Molecules
Volume	23
Issue number	12
DOIs	https://doi.org/10.3390/molecules23123096
State	Published - 27 Nov 2018

Keywords

Bromocyclopropane (BCP)
Coulomb explosion (CE)
Dehydrogenation
Dissociation time
Dissociative ionization (DI)
Femtosecond laser field

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10.3390/molecules23123096

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@article{c4a21c16b4834c3e85f2d562d2499f0a,

title = "Dissociative ionization and coulomb explosion of molecular bromocyclopropane in an intense femtosecond laser field",

abstract = "The dissociative ionization and Coulomb explosion of molecular bromocyclopropane (BCP) has been experimentally investigated by time-of-flight mass spectrum and dc-slice imaging technology. The sliced 2D images, kinetic energy releases and angular distributions of the fragment ions are obtained under the intense femtosecond laser fields (8.0 × 1013–2.0 × 1014 W/cm2). The results indicated that the low kinetic energy release (KER) components come from dissociative ionization of BCP+, while the high KER components come from Coulomb explosion of BCP2+. The chemical reaction path of BCP+ has been calculated by ab initio calculation, furthermore, the C-Br bond cleavage involved Coulomb explosion channels have been revealed, and the corresponding dehydrogenation mechanism has been confirmed.",

keywords = "Bromocyclopropane (BCP), Coulomb explosion (CE), Dehydrogenation, Dissociation time, Dissociative ionization (DI), Femtosecond laser field",

author = "Botong Liu and Yan Yang and Haitao Sun and Zhenrong Sun",

note = "Publisher Copyright: {\textcopyright} 2018 by the authors.",

year = "2018",

month = nov,

day = "27",

doi = "10.3390/molecules23123096",

language = "英语",

volume = "23",

journal = "Molecules",

issn = "1420-3049",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "12",

}

TY - JOUR

T1 - Dissociative ionization and coulomb explosion of molecular bromocyclopropane in an intense femtosecond laser field

AU - Liu, Botong

AU - Yang, Yan

AU - Sun, Haitao

AU - Sun, Zhenrong

PY - 2018/11/27

Y1 - 2018/11/27

N2 - The dissociative ionization and Coulomb explosion of molecular bromocyclopropane (BCP) has been experimentally investigated by time-of-flight mass spectrum and dc-slice imaging technology. The sliced 2D images, kinetic energy releases and angular distributions of the fragment ions are obtained under the intense femtosecond laser fields (8.0 × 1013–2.0 × 1014 W/cm2). The results indicated that the low kinetic energy release (KER) components come from dissociative ionization of BCP+, while the high KER components come from Coulomb explosion of BCP2+. The chemical reaction path of BCP+ has been calculated by ab initio calculation, furthermore, the C-Br bond cleavage involved Coulomb explosion channels have been revealed, and the corresponding dehydrogenation mechanism has been confirmed.

AB - The dissociative ionization and Coulomb explosion of molecular bromocyclopropane (BCP) has been experimentally investigated by time-of-flight mass spectrum and dc-slice imaging technology. The sliced 2D images, kinetic energy releases and angular distributions of the fragment ions are obtained under the intense femtosecond laser fields (8.0 × 1013–2.0 × 1014 W/cm2). The results indicated that the low kinetic energy release (KER) components come from dissociative ionization of BCP+, while the high KER components come from Coulomb explosion of BCP2+. The chemical reaction path of BCP+ has been calculated by ab initio calculation, furthermore, the C-Br bond cleavage involved Coulomb explosion channels have been revealed, and the corresponding dehydrogenation mechanism has been confirmed.

KW - Bromocyclopropane (BCP)

KW - Coulomb explosion (CE)

KW - Dehydrogenation

KW - Dissociation time

KW - Dissociative ionization (DI)

KW - Femtosecond laser field

UR - https://www.scopus.com/pages/publications/85057502713

U2 - 10.3390/molecules23123096

DO - 10.3390/molecules23123096

M3 - 文章

C2 - 30486415

AN - SCOPUS:85057502713

SN - 1420-3049

VL - 23

JO - Molecules

JF - Molecules

IS - 12

M1 - 3096

ER -

Dissociative ionization and coulomb explosion of molecular bromocyclopropane in an intense femtosecond laser field

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Keywords

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