Bond Dissociation Triggering Molecular Disorder in Amorphous H                         2                         O

Masaki Hada; Yuho Shigeeda; Shin Ya Koshihara; Takeshi Nishikawa; Yoshifumi Yamashita; Yasuhiko Hayashi

doi:10.1021/acs.jpca.8b08455

Bond Dissociation Triggering Molecular Disorder in Amorphous H ₂ O

Masaki Hada, Yuho Shigeeda, Shin Ya Koshihara, Takeshi Nishikawa, Yoshifumi Yamashita, Yasuhiko Hayashi

School of Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We developed a system to deposit H ₂ O 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) H ₂ O 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 H ₂ O. Our results illustrate the intriguing nature of light-matter and matter-matter interactions in H ₂ O molecules.

Original language	English
Pages (from-to)	9579-9584
Number of pages	6
Journal	Journal of Physical Chemistry A
Volume	122
Issue number	49
DOIs	https://doi.org/10.1021/acs.jpca.8b08455
Publication status	Published - Dec 13 2018

ASJC Scopus subject areas

Physical and Theoretical Chemistry

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10.1021/acs.jpca.8b08455

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title = " Bond Dissociation Triggering Molecular Disorder in Amorphous H 2 O ",

abstract = " We developed a system to deposit H 2 O 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) H 2 O 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 H 2 O. Our results illustrate the intriguing nature of light-matter and matter-matter interactions in H 2 O molecules. ",

author = "Masaki Hada and Yuho Shigeeda and Koshihara, {Shin Ya} and Takeshi Nishikawa and Yoshifumi Yamashita and Yasuhiko Hayashi",

note = "Funding Information: We acknowledge Prof. R. J. D. Miller at the Univ. of Toronto and Max Planck Institute for the Structure and Dynamics of Matter for our invaluable discussion. This work was supported by JSPS KAKENHI (Grant Nos. JP17K17893, JP18H05208, JP17K20065, and JP15H02103) and was also supported by a Sasakawa Scientific Research Grant from The Japan Science Society (Grant No. 29-125). Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

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doi = "10.1021/acs.jpca.8b08455",

language = "English",

volume = "122",

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journal = "Journal of Physical Chemistry A",

issn = "1089-5639",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Bond Dissociation Triggering Molecular Disorder in Amorphous H 2 O

AU - Hada, Masaki

AU - Shigeeda, Yuho

AU - Koshihara, Shin Ya

AU - Nishikawa, Takeshi

AU - Yamashita, Yoshifumi

AU - Hayashi, Yasuhiko

N1 - Funding Information: We acknowledge Prof. R. J. D. Miller at the Univ. of Toronto and Max Planck Institute for the Structure and Dynamics of Matter for our invaluable discussion. This work was supported by JSPS KAKENHI (Grant Nos. JP17K17893, JP18H05208, JP17K20065, and JP15H02103) and was also supported by a Sasakawa Scientific Research Grant from The Japan Science Society (Grant No. 29-125). Publisher Copyright: © 2018 American Chemical Society.

PY - 2018/12/13

Y1 - 2018/12/13

N2 - We developed a system to deposit H 2 O 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) H 2 O 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 H 2 O. Our results illustrate the intriguing nature of light-matter and matter-matter interactions in H 2 O molecules.

AB - We developed a system to deposit H 2 O 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) H 2 O 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 H 2 O. Our results illustrate the intriguing nature of light-matter and matter-matter interactions in H 2 O molecules.

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DO - 10.1021/acs.jpca.8b08455

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EP - 9584

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 49

ER -

Bond Dissociation Triggering Molecular Disorder in Amorphous H ₂ O

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