A new approach to the study of normalized appearance energy of hot atom reaction product in optical isomers of tris/acetylacetonato/ruthenium/III/

I. Kaneko; T. Sekine; K. Yoshihara

doi:10.1007/BF02162191

A new approach to the study of normalized appearance energy of hot atom reaction product in optical isomers of tris/acetylacetonato/ruthenium/III/

I. Kaneko, T. Sekine, K. Yoshihara

Division of Developmental Research in Education Programs

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

3 Citations (Scopus)

Abstract

Appearance energy is originally the threshold energy at which récoil products begin to be observed. This was determined by /γ, γ'/ reactions. Afterwards, an alternative technique has been developed to determine it by summing up recoil energy spectrum. The latter technique assumed a step function rising at energy E_O in the yield-energy relation. E_O should be defined as 'normalized appearance energy' /NAE/, because it is not threshold energy in its original sense. The NAE for isomerization from Δ to Λ /or reverse/ in Ru/acac/₃ was estimated to be 29 eV, and that for free atom /or ion/ formation was calculated to be 34 eV. The 5 eV difference seems to indicate an energy interval in which isomerization effectively occurs in the recoil reaction.

Original language	English
Pages (from-to)	89-96
Number of pages	8
Journal	Journal of Radioanalytical and Nuclear Chemistry Letters
Volume	144
Issue number	2
DOIs	https://doi.org/10.1007/BF02162191
Publication status	Published - 1990 Jan 1

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1007/BF02162191

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abstract = "Appearance energy is originally the threshold energy at which r{\'e}coil products begin to be observed. This was determined by /γ, γ'/ reactions. Afterwards, an alternative technique has been developed to determine it by summing up recoil energy spectrum. The latter technique assumed a step function rising at energy EO in the yield-energy relation. EO should be defined as 'normalized appearance energy' /NAE/, because it is not threshold energy in its original sense. The NAE for isomerization from Δ to Λ /or reverse/ in Ru/acac/3 was estimated to be 29 eV, and that for free atom /or ion/ formation was calculated to be 34 eV. The 5 eV difference seems to indicate an energy interval in which isomerization effectively occurs in the recoil reaction.",

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AU - Sekine, T.

AU - Yoshihara, K.

PY - 1990/1/1

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A new approach to the study of normalized appearance energy of hot atom reaction product in optical isomers of tris/acetylacetonato/ruthenium/III/

Abstract

ASJC Scopus subject areas

UN SDGs

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