【論文】J. Phys. Chem. Aに表紙掲載されました。WRHI:藤井正明教授、Otto Dopfer特任教授

【論文】J. Phys. Chem. Aに表紙掲載されました。WRHI:藤井正明教授、Otto Dopfer特任教授

WRHIからのお知らせおすすめ

化学生命科学研究所 藤井正明教授Otto Dopfer特任教授の国際共著論文がJ. Phys. Chem. A に表紙掲載されました。

“Isomer-Selective Spectroscopy and Dynamics of Phenol–Arn (n ≤ 5) Clusters”

(DOI: 10.1021/acs.jpca.1c04815

詳しくはこちら 

<Abstract>

Structures and ionization-induced solvation dynamics of phenol–(argon)n clusters, PhOH–Arn (n ≤ 5), were studied by using a variety of isomer-selective photoionization and vibrational spectroscopic techniques. Several higher-energy isomers were found and assigned for the first time by systematically controlling the experimental conditions of the supersonic expansion. This behavior is also confirmed for the PhOH–Kr2 cluster. Solvation structures are elucidated by evaluating systematic shifts in the S1 ← S0 origin and ionization energies obtained by resonance-enhanced photoionization, in addition to the OH stretching frequency obtained by IR photodissociation. Isomer-selective picosecond time-resolved IR spectroscopy for the n = 2 clusters revealed that the dynamics for the ionization-induced intermolecular π → H site-switching reaction strongly depends on the initial isomeric structure. In particular, the reaction time for the (1|1) isomer is 7 ps, while that for (2|0) is <3 ps. This difference shows that the switching time is determined by the distance of the reaction coordinate between the initial π-site and the final OH-site.