Ionization/dissociation processes of methyl-substituted derivates of cyclopentanone in intense femtosecond laser field

Qiaoqiao Wang, Yuri A. Dyakov, Di Wu, Dongdong Zhang, Mingxing Jin, Fuchun Liu, Hang Liu, Zhan Hu, Dajun Ding*, Hirobumi Mineo, Yoshiaki Teranishi, Sheng Der Chao, Sheng Hsien Lin, O. K. Kosheleva, A. M. Mebel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Ionization and dissociation of 2- and 3-methyl cyclopentanones have been investigated in molecular beams by their irradiation with intense 394 and 788 nm laser fields with pulse duration of 90 fs and intensity of 3 × 10 13-4 × 1014W/cm2. The analysis of the resulting mass spectra allowed us to discern the effects of methyl substitution and its position on the outcome of ionization/dissociation processes induced by the intense femtosecond laser field. Generalized Keldysh-Faisal-Reiss (g-KFR) and ab initio G3(MP2, CCSD)//B3LYP/6-31G*/RRKM theoretical calculations helped to uncover the formation mechanism of major ionic fragments observed in the mass spectra including C5H10+, C4H6O+, C3H3O +, C3H4O+, C3H x+, and C2Hx+.

Original languageEnglish
Pages (from-to)21-28
Number of pages8
JournalChemical Physics Letters
Volume586
DOIs
StatePublished - 1 Jan 2013

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