International Journal of Molecular Sciences | |
Comparative Study of the Dissociative Ionization of 1,1,1-Trichloroethane Using Nanosecond and Femtosecond Laser Pulses | |
Anton du Plessis1  Christien Strydom2  | |
[1] CSIR National Laser Centre, PO Box 395, Meiring Naude Road, Pretoria 0001, South Africa;Chemical Resource Beneficiation, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa | |
关键词: laser ionization; laser dissociation; coherent control; trichloroethane; | |
DOI : 10.3390/ijms11031114 | |
来源: mdpi | |
【 摘 要 】
Changes in the laser induced molecular dissociation of 1,1,1-trichloroethane (TCE) were studied using a range of intensities and standard laser wavelengths with nanosecond and femtosecond pulse durations. TCE contains C-H, C-C and C-Cl bonds and selective bond breakage of one or more of these bonds is of scientific interest. Using laser ionization time of flight mass spectrometry, it was found that considerable variation of fragment ion peak heights as well as changes in relative peak ratios is possible by varying the laser intensity (by attenuation), wavelength and pulse duration using standard laser sources. The nanosecond laser dissociation seems to occur
【 授权许可】
CC BY
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190054540ZK.pdf | 883KB | download |