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| File | Description | Size | Format | |
|---|---|---|---|---|
| 1.4955296.pdf | 2.55 MB | Adobe PDF | View/Open |
| Title: | Full observation of ultrafast cascaded radiationless transitions from S2(ππ-) state of pyrazine using vacuum ultraviolet photoelectron imaging |
| Authors: | Horio, Takuya Spesyvtsev, Roman Nagashima, Kazuki Ingle, Rebecca A. Suzuki, Yoshi Ichi Suzuki, Toshinori   |
| Author's alias: | 堀尾, 琢哉 鈴木, 俊法 |
| Issue Date: | 28-Jul-2016 |
| Publisher: | American Institute of Physics |
| Journal title: | Journal of Chemical Physics |
| Volume: | 145 |
| Issue: | 4 |
| Thesis number: | 044306 |
| Abstract: | A photoexcited molecule undergoes multiple deactivation and reaction processes simultaneously or sequentially, which have been observed by combinations of various experimental methods. However, a single experimental method that enables complete observation of the photo-induced dynamics would be of great assistance for such studies. Here we report a full observation of cascaded electronic dephasing from S2(ππ∗) in pyrazine (C4N2H4) by time-resolved photoelectron imaging (TRPEI) using 9.3-eV vacuum ultraviolet pulses with a sub-20 fs time duration. While we previously demonstrated a real-time observation of the ultrafast S2(ππ∗) → S1(nπ∗) internal conversion in pyrazine using TRPEI with UV pulses, this study presents a complete observation of the dynamics including radiationless transitions from S1 to S0 (internal conversion) and T1(nπ∗) (intersystem crossing). Also discussed are the role of 1Au(nπ∗) in the internal conversion and the configuration interaction of the S2(ππ∗) electronic wave function. |
| Rights: | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in 'The Journal of Chemical Physics 145, 044306 (2016)' and may be found at https://aip.scitation.org/doi/10.1063/1.4955296. The full-text file will be made open to the public on 28 July 2017 in accordance with publisher's 'Terms and Conditions for Self-Archiving' |
| URI: | http://hdl.handle.net/2433/230212 |
| DOI(Published Version): | 10.1063/1.4955296 |
| PubMed ID: | 27475360 |
| Appears in Collections: | Journal Articles |
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