TY - JOUR
T1 - Ultrafast Photodissociation Dynamics of $n$-Butyl Iodide in the A-Band
AU - Liu , Yu-Zhu
AU - Long , Jin-You
AU - Qin , Chao-Chao
AU - Ghazal , Ahmed Yousif
AU - Wang , Yan-Mei
AU - Zhang , Bing
JO - Journal of Atomic and Molecular Sciences
VL - 2
SP - 99
EP - 108
PY - 2011
DA - 2011/02
SN - 2
DO - http://doi.org/10.4208/jams.012111.012811b
UR - https://global-sci.org/intro/article_detail/jams/8115.html
KW - $n$-butyl iodide, ultrafast dynamics, pump-probe, photodissociation, ion imaging.
AB - <p style="text-align: justify;">Ultrafast photodissociation dynamics of n-butyl iodide in the $A$-band has been studied by femtosecond time-resolved mass spectroscopy coupled with ion imaging. The time constant of $n$-$C_4H_9I$ in the A-band with one photon excitation at ~267 nm is measured to be ~(58$\pm$6) fs. The ion images of $I (^2P_{3/2})$ and $I^* (^2P_{1/2})$ at ~267 nm and ~274 nm are obtained and analyzed to yield corresponding speed and angular distributions. The dependences of dissociation mechanism on excitation wavelength and the size of the alkyl radical are discussed.</p>