Scopus
SJR Q2
On the fragmentation of nitrobenzene and nitrotoluenes induced by a femtosecond laser at 375 nm
Journal of Physical Chemistry A · Mart 1997
Makale Bilgileri
ISSN10895639
Yayın TarihiMart 1997
Cilt / Sayfa101 · 2264-2270
Scopus ID2-s2.0-0000551828
Özet
The photodissociation of nitrobenzene and the nitrotoluene isomers at 375 nm, induced by a 90 femtosecond laser, is analyzed and compared with the fragmentation by a 10 nanosecond laser at the same wavelength. The molecular ionization is attributed to a nonresonant multiphoton process, and the observed fragmentation can be explained predominantly by an above ionization mechanism (ladder climbing). The mass spectra of the three nitrotoluene isomers show differences which can be used for analytical purposes. The molecular rearrangement taking place prior to the dissociation is also discussed. For nitrobenzene, it is suggested that most of the dissociation occurs from the nitrobenzene structure rather than that of phenyl nitrite. In the case of o-nitrotoluene, it seems that the hydrogen transfer from the -CH3 to the NO2 group (ortho effect) is favored in ionic states, while the rearrangement to a nitrite structure is possible in the excited electronic states.
Yazarlar (7)
1
C. Kosmidis
2
Kenneth William David Ledingham
3
Hamdi Şükür Kılıç
4
T. McCanny
5
R. P. Singhal
6
A. J. Langley
7
W. Shaikh
Kurumlar
Central Laser Facility
Didcot United Kingdom
Selçuk Üniversitesi
Selçuklu Turkey
University of Glasgow
Glasgow United Kingdom
University of Ioannina
Ioannina Greece
Scimago Dergi (ISSN Eşleşmesi)
Journal of Physical Chemistry A
Q2
SJR Skoru0,634
H-Index266
YayıncıAmerican Chemical Society
ÜlkeUnited States
Medicine (miscellaneous) (Q2)
Physical and Theoretical Chemistry (Q2)
Metrikler
103
Atıf
7
Yazar