TY - JOUR
T1 - Coupling between intramolecular and intermolecular nuclear motion in a large van der waals complex
AU - Bahatt, Dar
AU - Even, Uzi
AU - Jortner, Joshua
N1 - Funding Information:
the dissociation energy of the TS - Ar vdW complex, which is estimated [ZJO] to be D x 400 cm-l, whereupon the VP channel is closed in the intermediate S, state. On the other hand, the VP channel is open in the final ionic state. The adiabatic ronization potential of TS is 7.75 eV [20], whereupon the excess vibrational energy of TS - Ar+ produced vra R2PL by two 3095 A photons 1s 2250 cm-l, being sufficient for dissociation The “disappearance” of the 80 and 89 cm-l modes (which will heremafter be referred to as the Q modes) together with persistence of the iugher energy w. - = 194 cm-l mode in the R2PI spectrum, raises the distinct possibility of mode selective VP of the TS.Ar+ ion, which was excited photoselectively to an cy vibrational state from an Sl(cr) intermediate level. Further work is bemg conducted for a cntical scrutmy of this conjecture_ This research was supported in part by the United States Army through its European Research Office.
PY - 1985/7/5
Y1 - 1985/7/5
N2 - The vibrational level structure of the S0 → S1 transition of trans-stilbene-Ar1 was interrogated by mass-resolved resonance two-photon ionization spectroscopy in supersonic beams. Combination bands provide evidence for intermode coupling between the vibrational excitation of the relative motion of Ar and trans-stilbene (TS) in TS·Ar and an intramolecular vibration of TS. which is manifested by the linear dependence of the intermolecular vibrational energy on the vibrational quantum number of the intramolecular motion.
AB - The vibrational level structure of the S0 → S1 transition of trans-stilbene-Ar1 was interrogated by mass-resolved resonance two-photon ionization spectroscopy in supersonic beams. Combination bands provide evidence for intermode coupling between the vibrational excitation of the relative motion of Ar and trans-stilbene (TS) in TS·Ar and an intramolecular vibration of TS. which is manifested by the linear dependence of the intermolecular vibrational energy on the vibrational quantum number of the intramolecular motion.
UR - http://www.scopus.com/inward/record.url?scp=46549090893&partnerID=8YFLogxK
U2 - 10.1016/0009-2614(85)80296-7
DO - 10.1016/0009-2614(85)80296-7
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AN - SCOPUS:46549090893
SN - 0009-2614
VL - 117
SP - 527
EP - 531
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 6
ER -