Ultrafast Photodissociation Dynamics of $n$-Butyl Iodide in the A-Band | Zendy

Yuzhu Liu | Zendy; Jinyou Long | Zendy; Chaochao Qin | Zendy; Ahmed Yousif Ghazal | Zendy; Yanmei Wang | Zendy; Bing Zhang | Zendy

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Ultrafast Photodissociation Dynamics of $n$-Butyl Iodide in the A-Band

Author(s) -

Yuzhu Liu,

Jinyou Long,

Chaochao Qin,

Ahmed Yousif Ghazal,

Yanmei Wang,

Bing Zhang

Publication year - 2011

Publication title -

the journal of atomic and molecular sciences

Language(s) - English

Resource type - Journals

eISSN - 2079-7346

pISSN - 2075-1303

DOI - 10.4208/jams.012111.012811b

Subject(s) - photodissociation , ultrashort pulse , iodide , dynamics (music) , methyl iodide , chemistry , photochemistry , physics , optics , inorganic chemistry , laser , acoustics , medicinal chemistry

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 4 H 9 I in the A-band with one photon excitation at∼267 nm is measured to be∼(58±6) fs. The ion images of I ( 2 P3/2) and I ∗ ( 2 P1/2) 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. PACS: 33.80.Gj, 33.20.-t

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