Ionization/dissociation processes of methyl-substituted derivates of cyclopentanone in intense femtosecond laser field
Journal
Chemical Physics Letters
Journal Volume
586
Pages
21-28
Date Issued
2013
Author(s)
Wang, Q.
Dyakov, Y.A.
Wu, D.
Zhang, D.
Jin, M.
Liu, F.
Liu, H.
Hu, Z.
Ding, D.
Mineo, H.
Teranishi, Y.
Chao, S.D.
Lin, S.H.
Kosheleva, O.K.
Mebel, A.M.
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+. © 2013 Elsevier B.V. All rights reserved.
SDGs
Type
journal article