A 1+1 ionization scheme for sensitive detection of the OH radical

Chris McRaven; Janis Alnis; Brendan Furneaux; Neil Shafer-Ray

doi:10.1021/jp0344545

A 1+1 ionization scheme for sensitive detection of the OH radical

Chris McRaven
, Janis Alnis
, Brendan Furneaux
, Neil Shafer-Ray^*

^*Corresponding author for this work

University of Oklahoma

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

15 Citations (Scopus)

Abstract

We introduce a new laser detection scheme for the OH radical that employs 1+1 X²Π ⇋ D²Σ^- resonance enhanced excitation to a high-lying Rydberg state followed by field ionization. We place an upper limit of 8 ns on the lifetime of the D²Σ^- state. We also correct published values for T₀ for the D²Σ^- state, provide a new value for the energy of the 6s¹11p¹ ³P₁⁰ state of Hg (81 807.6 cm^-1), and measure the rotational temperature of OH radicals produced in the photolysis of formic acid at 212.6 nm to be 300 ± 50 K. Our REMPI probe might be suited to studies that require both sensitive detection of the OH radical combined with accurate kinetic energy information.

Original language	English
Pages (from-to)	7138-7141
Number of pages	4
Journal	Journal of Physical Chemistry A
Volume	107
Issue number	37
DOIs	https://doi.org/10.1021/jp0344545
Publication status	Published - 18 Sept 2003
Externally published	Yes

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10.1021/jp0344545

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title = "A 1+1 ionization scheme for sensitive detection of the OH radical",

abstract = "We introduce a new laser detection scheme for the OH radical that employs 1+1 X2Π ⇋ D2Σ- resonance enhanced excitation to a high-lying Rydberg state followed by field ionization. We place an upper limit of 8 ns on the lifetime of the D2Σ- state. We also correct published values for T0 for the D2Σ- state, provide a new value for the energy of the 6s111p1 3P10 state of Hg (81 807.6 cm-1), and measure the rotational temperature of OH radicals produced in the photolysis of formic acid at 212.6 nm to be 300 ± 50 K. Our REMPI probe might be suited to studies that require both sensitive detection of the OH radical combined with accurate kinetic energy information.",

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T1 - A 1+1 ionization scheme for sensitive detection of the OH radical

AU - McRaven, Chris

AU - Alnis, Janis

AU - Furneaux, Brendan

AU - Shafer-Ray, Neil

PY - 2003/9/18

Y1 - 2003/9/18

N2 - We introduce a new laser detection scheme for the OH radical that employs 1+1 X2Π ⇋ D2Σ- resonance enhanced excitation to a high-lying Rydberg state followed by field ionization. We place an upper limit of 8 ns on the lifetime of the D2Σ- state. We also correct published values for T0 for the D2Σ- state, provide a new value for the energy of the 6s111p1 3P10 state of Hg (81 807.6 cm-1), and measure the rotational temperature of OH radicals produced in the photolysis of formic acid at 212.6 nm to be 300 ± 50 K. Our REMPI probe might be suited to studies that require both sensitive detection of the OH radical combined with accurate kinetic energy information.

AB - We introduce a new laser detection scheme for the OH radical that employs 1+1 X2Π ⇋ D2Σ- resonance enhanced excitation to a high-lying Rydberg state followed by field ionization. We place an upper limit of 8 ns on the lifetime of the D2Σ- state. We also correct published values for T0 for the D2Σ- state, provide a new value for the energy of the 6s111p1 3P10 state of Hg (81 807.6 cm-1), and measure the rotational temperature of OH radicals produced in the photolysis of formic acid at 212.6 nm to be 300 ± 50 K. Our REMPI probe might be suited to studies that require both sensitive detection of the OH radical combined with accurate kinetic energy information.

UR - https://www.scopus.com/pages/publications/0141570810

U2 - 10.1021/jp0344545

DO - 10.1021/jp0344545

M3 - Article

AN - SCOPUS:0141570810

SN - 1089-5639

VL - 107

SP - 7138

EP - 7141

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 37

ER -

A 1+1 ionization scheme for sensitive detection of the OH radical

Abstract

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