摘要
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+.
原文 | English |
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頁(從 - 到) | 21-28 |
頁數 | 8 |
期刊 | Chemical Physics Letters |
卷 | 586 |
DOIs | |
出版狀態 | Published - 2013 |