Bond Dissociation Triggering Molecular Disorder in Amorphous H2O
- Masaki Hada*Masaki Hada*E-mail: [email protected]Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, JapanMore by Masaki Hada,
- Yuho ShigeedaYuho ShigeedaGraduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, JapanMore by Yuho Shigeeda,
- Shin-ya KoshiharaShin-ya KoshiharaSchool of Science, Tokyo Institute of Technology, Tokyo 152-8551, JapanMore by Shin-ya Koshihara,
- Takeshi NishikawaTakeshi NishikawaGraduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, JapanMore by Takeshi Nishikawa,
- Yoshifumi YamashitaYoshifumi YamashitaGraduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, JapanMore by Yoshifumi Yamashita, and
- Yasuhiko HayashiYasuhiko HayashiGraduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, JapanMore by Yasuhiko Hayashi
Abstract
We developed a system to deposit H2O molecules onto ultrathin silicon nitride substrates in situ using time-resolved transmission electron diffraction apparatus and performed ultrafast time-resolved electron diffraction measurements in the noncrystalline (amorphous) H2O under near-ultraviolet photoexcitation. The observed dynamics directly represent O–H bond dissociation via multiphoton absorption and charge transfer, which trigger ionization and intermolecular disorder in the amorphous H2O. Our results illustrate the intriguing nature of light–matter and matter–matter interactions in H2O molecules.
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This article is cited by 5 publications.
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