Multiphoton Ionization of Uracil at 355 nm
DOI:
https://doi.org/10.15415/jnp.2017.51004Keywords:
Uracil, Multiphoton, DissociationAbstract
We present the experimental results from ionization and dissociation by multiphoton absorption (MPI) of uracil and a mixture of uracil with Ar using a Reflectron time of flight spectrometer along with radiation from 355 nm at pulsed Nd:YAG laser . We focus on the light ions production. The MPI mass spectra show that the presence and intensity of the resulting ions depend on the density power of the laser. The resulting ions in the mass spectra are identified and found similar behavior in the case of H+ and C+ as when multiple charged ions are used. Different results were found in contrast with those, recently reported, when electrons or photons of other wavelength were used. The number of 355nm absorbed photons was calculated accordingly to Keldysh theory and similar results were fond using pure uracil or uracil-Ar mixture. Our results are compared with those obtained in other laboratories under different experimental conditions, some of them show only partial agreement and differences are discussed.
Downloads
References
Conconi, A., & Bell, B.(2017) Molecular biology: The long and short of a DNAdamage response, doi:10.1038/nature 22488
Kuzicheva, E.A.,& Simakov, M.B. (1999) Advances in Space Research 23 (2), 391.
Joyce, G.F. (2002) The antiquity of RNA-based evolution,doi: 10.1038/418214a
de Vries J., Hoekstra, R. Morgenstern, R. & Schlatholter T, (2003) Charge Driven Fragmentation of Nucleobases, doi.org/10.1103/PhysRevLett.91.053401
Schlatholter, T. Hoekstra R, Zamith, S. Ni, Y. Muller, H.G et al , (2005) Response of Polyatomic Molecules to Ultrastrong Laser- and Ion-Induced Fields, doi:10.1103/PhysRevLett.94.233001
Nikjoo, H.L., Charlton, D.E., & Goodhead, D.T.,(1994) Monte Carlo track structure studies of energy deposition and calculation of initial DSB and RBE, doi.org/10.1016/0273-1177(94)90466-1
Sadr, L., Mignon P., Hassan, A., Carime, A., Bernadette, B., et al (2012) DFT study of the fragmentation mechanism of uracil RNA base, doi: 10.1039/ c2cp40384f
Barc, B., Ryszka, M., Spurrell, J., Dampc, M., Limão-Vieira, P.,et al . (2013) Multi-photon ionization and fragmentation of uracil: Neutral excited-state ring opening and hydration effects, doi.org/10.1063/1.4851476
Ryszka, M., Pandey, R., Rizk, C., Tabet, J., Barc, B.,et al (2016)Dissociative multi-photon ionization of isolated uracil and uracil-adenine complexes, doi.org /10.1016/j.ijms.2015.12.006
Jochims , H-W., Schwell , H., Baumgartel , S., & Leach M., (2005) Photoion mass spectrometry of adenine, thymine and uracil in the 6–22 eV photon energy range, doi:10.1016/j.chemphys.2005.03.008
Bolognesi, P., O’Keeffe, P..Mazza, T., Bozek, J., Coffee, R. et al . (2015) A study of the dynamical energy flow in uracil ,doi:10.1088/1742-6596/635/11/112062
Keldysh, L.V., (1965) Sov. Ionization in the field of a strong electromagnetic wave Soviet Physics JETP 20 (5), 1307–1314
Poveda, J. C., Guerrero, A., Cisneros, C., & Alvarez I., (2015) Carbon/hydrogen clusters [CnHx+] formation from laser irradiation of coronene, doi:10.1088/17426596/605/1/012021
Nam, H. S. H., Park, S., Song, J. K., & Park, J. S. M., (2007) Photoinduced Dynamics of Hydrated Adenine Clusters, doi: 10.1021/jp067193i
Hecht, S.M.,Gupta,A.S. & Leonard, N.J.(1969)Position of uridine thiation: The identification of minor nucleosides from transfer RNA by mass spectrometry doi. org/10.1016/0005-2787(69)90195–6
Imhoff, M., Deng, Z.,& Huels, M. A.(2007)Ionizing fragmentation of uracil and 5-bromouracil by electron impact in gas phase and hyperthermal Ar+ ion irradiation in condensed phase doi:10.1016/j.ijms.2006.11.004
Rice, J. M., Dudek, G.O., & Barber M. (1965) Mass Spectra of Nucleic Acid Derivatives. Pyrimidines, doi: 10.1021/ja00948a029
Coupier, B., Farizon, B., Farizon, M. et al. (2002) 20: 459. doi:10.1140/epjd/ e2002-00166-3
Downloads
Published
How to Cite
Issue
Section
License
View Legal Code of the above-mentioned license, https://creativecommons.org/licenses/by/4.0/legalcode
View Licence Deed here https://creativecommons.org/licenses/by/4.0/
Journal of Nuclear Physics, Material Sciences, Radiation and Applications by Chitkara University Publications is licensed under a Creative Commons Attribution 4.0 International License. Based on a work at https://jnp.chitkara.edu.in/ |