@article{Townsend2006a,
	title = {B21(Σu+1) excited state decay dynamics in {CS2}},
	volume = {125},
	issn = {0021-9606},
	url = {http://aip.scitation.org/doi/10.1063/1.2403137},
	doi = {10.1063/1.2403137},
	abstract = {The authors report time resolved photoelectron spectra of the B21(Σu+1) state of CS2 at pump wavelengths in the region of 200nm. In contrast to previous studies, the authors find that the predissociation dynamics is not well described by a single exponential decay. Biexponential modeling of the authors’ data reveals a rapid decay pathway (τ{\textless}50fs), in addition to a longer lived channel (τ∼350–650fs) that displays a marked change in apparent lifetime when the polarization of the pump laser is rotated with respect to that of the probe. Since the initially populated B21(Σu+1) state may decay to form either S(D1) or S(P3) products (the latter produced via a spin-orbit induced crossing from a singlet to a triplet electronic surface), this lifetime observation may be rationalized in terms of changes in the relative ionization cross section of these singlet and triplet states of CS2 as a function of laser polarization geometry. The experimentally observed lifetime of the longer lived channel is therefore a superp...},
	number = {23},
	urldate = {2017-11-25},
	journal = {The Journal of Chemical Physics},
	author = {Townsend, Dave and Satzger, Helmut and Ejdrup, Tine and Lee, Anthony M. D. and Stapelfeldt, Henrik and Stolow, Albert},
	month = dec,
	year = {2006},
	note = {Publisher: American Institute of Physics},
	keywords = {\#nosource, carbon compounds, molecule-photon collisions, photoelectron spectra, photoionisation, predissociation, spin-orbit interactions, time resolved spectra, triplet state},
	pages = {234302},
}

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Biexponential modeling of the authors’ data reveals a rapid decay pathway (τ\\textless50fs), in addition to a longer lived channel (τ∼350–650fs) that displays a marked change in apparent lifetime when the polarization of the pump laser is rotated with respect to that of the probe. Since the initially populated B21(Σu+1) state may decay to form either S(D1) or S(P3) products (the latter produced via a spin-orbit induced crossing from a singlet to a triplet electronic surface), this lifetime observation may be rationalized in terms of changes in the relative ionization cross section of these singlet and triplet states of CS2 as a function of laser polarization geometry. 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In contrast to previous studies, the authors find that the predissociation dynamics is not well described by a single exponential decay. Biexponential modeling of the authors’ data reveals a rapid decay pathway (τ{\\textless}50fs), in addition to a longer lived channel (τ∼350–650fs) that displays a marked change in apparent lifetime when the polarization of the pump laser is rotated with respect to that of the probe. Since the initially populated B21(Σu+1) state may decay to form either S(D1) or S(P3) products (the latter produced via a spin-orbit induced crossing from a singlet to a triplet electronic surface), this lifetime observation may be rationalized in terms of changes in the relative ionization cross section of these singlet and triplet states of CS2 as a function of laser polarization geometry. 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D.","Stapelfeldt, H.","Stolow, A."],"key":"Townsend2006a","id":"Townsend2006a","bibbaseid":"townsend-satzger-ejdrup-lee-stapelfeldt-stolow-b21u1excitedstatedecaydynamicsincs2-2006","role":"author","urls":{"Paper":"http://aip.scitation.org/doi/10.1063/1.2403137"},"keyword":["#nosource","carbon compounds","molecule-photon collisions","photoelectron spectra","photoionisation","predissociation","spin-orbit interactions","time resolved spectra","triplet state"],"metadata":{"authorlinks":{}},"html":""},"bibtype":"article","biburl":"https://bibbase.org/zotero-group/PHzot2020/2518121","dataSources":["R82eNqh6mciPon8Rh"],"keywords":["#nosource","carbon compounds","molecule-photon collisions","photoelectron spectra","photoionisation","predissociation","spin-orbit interactions","time resolved spectra","triplet state"],"search_terms":["b21","excited","state","decay","dynamics","cs2","townsend","satzger","ejdrup","lee","stapelfeldt","stolow"],"title":"B21(Σu+1) excited state decay dynamics in CS2","year":2006}