On the existence of the hypervalent H3O, H2DO, HD2O, and D3O radicals

P. Hvelplunda; S.B. Nielsen; S. Panjaa; Jens Olaf Pepke Pedersen; E. Uggerud

doi:10.1016/j.ijms.2008.12.004

On the existence of the hypervalent H3O, H2DO, HD2O, and D3O radicals

P. Hvelplunda, S.B. Nielsen, S. Panjaa, Jens Olaf Pepke Pedersen, E. Uggerud

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The existence of oxonium radicals on the microsecond time scale has been up for much debate, and strong isotope effects have been reported. Here we show that H3O, H2DO, HD2O, and D3O all have subnanosecond lifetimes when they are formed in charge-transfer collisions between oxonium cations and cesium. A kinetic isotope effect on hydrogen versus deuterium loss from HD2O was found to be 2.4, similar to that found in dissociative recombination of HD2O+ and for dissociation after electron transfer to HD2O+ from potassium.

Original language	English
Journal	International Journal of Mass Spectrometry
Volume	281
Issue number	1-2
Pages (from-to)	52-54
ISSN	1387-3806
DOIs	https://doi.org/10.1016/j.ijms.2008.12.004
Publication status	Published - 2009

Keywords

Neutral reionization
Oxonium radicals
Electron transfer
Charge reversal
Kinetic isotope effect

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title = "On the existence of the hypervalent H3O, H2DO, HD2O, and D3O radicals",

abstract = "The existence of oxonium radicals on the microsecond time scale has been up for much debate, and strong isotope effects have been reported. Here we show that H3O, H2DO, HD2O, and D3O all have subnanosecond lifetimes when they are formed in charge-transfer collisions between oxonium cations and cesium. A kinetic isotope effect on hydrogen versus deuterium loss from HD2O was found to be 2.4, similar to that found in dissociative recombination of HD2O+ and for dissociation after electron transfer to HD2O+ from potassium.",

keywords = "Neutral reionization, Oxonium radicals, Electron transfer, Charge reversal, Kinetic isotope effect",

author = "P. Hvelplunda and S.B. Nielsen and S. Panjaa and Pedersen, {Jens Olaf Pepke} and E. Uggerud",

year = "2009",

doi = "10.1016/j.ijms.2008.12.004",

language = "English",

volume = "281",

pages = "52--54",

journal = "International Journal of Mass Spectrometry",

issn = "1387-3806",

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TY - JOUR

T1 - On the existence of the hypervalent H3O, H2DO, HD2O, and D3O radicals

AU - Hvelplunda, P.

AU - Nielsen, S.B.

AU - Panjaa, S.

AU - Pedersen, Jens Olaf Pepke

AU - Uggerud, E.

PY - 2009

Y1 - 2009

N2 - The existence of oxonium radicals on the microsecond time scale has been up for much debate, and strong isotope effects have been reported. Here we show that H3O, H2DO, HD2O, and D3O all have subnanosecond lifetimes when they are formed in charge-transfer collisions between oxonium cations and cesium. A kinetic isotope effect on hydrogen versus deuterium loss from HD2O was found to be 2.4, similar to that found in dissociative recombination of HD2O+ and for dissociation after electron transfer to HD2O+ from potassium.

AB - The existence of oxonium radicals on the microsecond time scale has been up for much debate, and strong isotope effects have been reported. Here we show that H3O, H2DO, HD2O, and D3O all have subnanosecond lifetimes when they are formed in charge-transfer collisions between oxonium cations and cesium. A kinetic isotope effect on hydrogen versus deuterium loss from HD2O was found to be 2.4, similar to that found in dissociative recombination of HD2O+ and for dissociation after electron transfer to HD2O+ from potassium.

KW - Neutral reionization

KW - Oxonium radicals

KW - Electron transfer

KW - Charge reversal

KW - Kinetic isotope effect

U2 - 10.1016/j.ijms.2008.12.004

DO - 10.1016/j.ijms.2008.12.004

M3 - Journal article

SN - 1387-3806

VL - 281

SP - 52

EP - 54

JO - International Journal of Mass Spectrometry

JF - International Journal of Mass Spectrometry

IS - 1-2

ER -

On the existence of the hypervalent H3O, H2DO, HD2O, and D3O radicals

Abstract

Keywords

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