The vacuum ultraviolet laser excitation spectra for free ion-pair (X++Y-) formation from jet-cooled I2 and ICl

Kenneth P. Lawley; Alexander C. Flexen; Robert R. J. Maier; Andreas Manck; Trevor Ridley; Robert J. Donovan

doi:10.1039/b109558g

The vacuum ultraviolet laser excitation spectra for free ion-pair (X⁺+Y^-) formation from jet-cooled I₂ and ICl

Kenneth P. Lawley, Alexander C. Flexen, Robert R. J. Maier, Andreas Manck, Trevor Ridley^*, Robert J. Donovan

^*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

The energy difference between the threshold for free ion-pair formation (X⁺+Y^-s) and the molecular ionization energy (XY⁺) is relatively large in I₂ and ICl. Photodissociation to free ion-pairs in this energy region has been probed by vacuum ultraviolet laser radiation generated by four-wave mixing. The negative ion excitation spectra are highly structured and closely follow the one-photon absorption cross-sections. Several Rydberg series are identified, the f series being particularly prominent. Direct absorption to the free ion-pair continuum is negligible in this region and all of the Rydberg states that are accessed act as efficient doorway states to ion-pair production.

Original language	English
Pages (from-to)	1412-1418
Number of pages	7
Journal	Physical Chemistry Chemical Physics
Volume	4
Issue number	8
DOIs	https://doi.org/10.1039/b109558g
Publication status	Published - 21 Mar 2002

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "The vacuum ultraviolet laser excitation spectra for free ion-pair (X++Y-) formation from jet-cooled I2 and ICl",

abstract = "The energy difference between the threshold for free ion-pair formation (X++Y-s) and the molecular ionization energy (XY+) is relatively large in I2 and ICl. Photodissociation to free ion-pairs in this energy region has been probed by vacuum ultraviolet laser radiation generated by four-wave mixing. The negative ion excitation spectra are highly structured and closely follow the one-photon absorption cross-sections. Several Rydberg series are identified, the f series being particularly prominent. Direct absorption to the free ion-pair continuum is negligible in this region and all of the Rydberg states that are accessed act as efficient doorway states to ion-pair production.",

author = "Lawley, \{Kenneth P.\} and Flexen, \{Alexander C.\} and Maier, \{Robert R. J.\} and Andreas Manck and Trevor Ridley and Donovan, \{Robert J.\}",

year = "2002",

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doi = "10.1039/b109558g",

language = "English",

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T1 - The vacuum ultraviolet laser excitation spectra for free ion-pair (X++Y-) formation from jet-cooled I2 and ICl

AU - Lawley, Kenneth P.

AU - Flexen, Alexander C.

AU - Maier, Robert R. J.

AU - Manck, Andreas

AU - Ridley, Trevor

AU - Donovan, Robert J.

PY - 2002/3/21

Y1 - 2002/3/21

N2 - The energy difference between the threshold for free ion-pair formation (X++Y-s) and the molecular ionization energy (XY+) is relatively large in I2 and ICl. Photodissociation to free ion-pairs in this energy region has been probed by vacuum ultraviolet laser radiation generated by four-wave mixing. The negative ion excitation spectra are highly structured and closely follow the one-photon absorption cross-sections. Several Rydberg series are identified, the f series being particularly prominent. Direct absorption to the free ion-pair continuum is negligible in this region and all of the Rydberg states that are accessed act as efficient doorway states to ion-pair production.

AB - The energy difference between the threshold for free ion-pair formation (X++Y-s) and the molecular ionization energy (XY+) is relatively large in I2 and ICl. Photodissociation to free ion-pairs in this energy region has been probed by vacuum ultraviolet laser radiation generated by four-wave mixing. The negative ion excitation spectra are highly structured and closely follow the one-photon absorption cross-sections. Several Rydberg series are identified, the f series being particularly prominent. Direct absorption to the free ion-pair continuum is negligible in this region and all of the Rydberg states that are accessed act as efficient doorway states to ion-pair production.

UR - https://www.scopus.com/pages/publications/0036218880

U2 - 10.1039/b109558g

DO - 10.1039/b109558g

M3 - Article

AN - SCOPUS:0036218880

SN - 1463-9076

VL - 4

SP - 1412

EP - 1418

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 8

ER -

The vacuum ultraviolet laser excitation spectra for free ion-pair (X⁺+Y^-) formation from jet-cooled I₂ and ICl

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