Mechanism of recoil implantation reactions of technetium and ruthenium in metal acetylacetonates

T. Sekine; K. Yoshihara

doi:10.1007/BF02163054

Mechanism of recoil implantation reactions of technetium and ruthenium in metal acetylacetonates

T. Sekine, K. Yoshihara

Division of Developmental Research in Education Programs

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Abstract

Recoil implantation of Tc and Ru in metal acetylacetonates were performed using ruthenium metal as a source and M^III/acac/₃ and M^II/acac/₂ complexes as catchers. The recoil atoms were obtained by¹⁰⁰Ru/γ, p/^99mTc and⁹⁸Ru/γ, n/⁹⁷Ru reactions. The yields of Tc/acac/₃ and Ru/acac/₃ were clearly dependent on the force constant of the bond between the central metal atom and oxygen in acetylacetone K/M-O/. A plot of the yield vs. 1/K(M-O) showed a linear relationship. However, the yield of Tc/acac/₂ implanted in M/acac/₂ did not show such a dependence on the force constant. The difference of the mechanism of complex formation between Tc/acac/₃ and Tc/acac/₂ was discussed on the basis of a reaction cage surrounding the recoil atom and of reaction time necessary for competition between the recoil atom and the central metal of the catcher complex.

Original language	English
Pages (from-to)	229-236
Number of pages	8
Journal	Journal of Radioanalytical and Nuclear Chemistry Letters
Volume	105
Issue number	4
DOIs	https://doi.org/10.1007/BF02163054
Publication status	Published - 1986 Jun 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/BF02163054

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title = "Mechanism of recoil implantation reactions of technetium and ruthenium in metal acetylacetonates",

abstract = "Recoil implantation of Tc and Ru in metal acetylacetonates were performed using ruthenium metal as a source and MIII/acac/3 and MII/acac/2 complexes as catchers. The recoil atoms were obtained by100Ru/γ, p/99mTc and98Ru/γ, n/97Ru reactions. The yields of Tc/acac/3 and Ru/acac/3 were clearly dependent on the force constant of the bond between the central metal atom and oxygen in acetylacetone K/M-O/. A plot of the yield vs. 1/K(M-O) showed a linear relationship. However, the yield of Tc/acac/2 implanted in M/acac/2 did not show such a dependence on the force constant. The difference of the mechanism of complex formation between Tc/acac/3 and Tc/acac/2 was discussed on the basis of a reaction cage surrounding the recoil atom and of reaction time necessary for competition between the recoil atom and the central metal of the catcher complex.",

author = "T. Sekine and K. Yoshihara",

year = "1986",

month = jun,

day = "1",

doi = "10.1007/BF02163054",

language = "English",

volume = "105",

pages = "229--236",

journal = "Journal of Radioanalytical and Nuclear Chemistry",

issn = "0022-4081",

publisher = "Elsevier BV",

number = "4",

}

TY - JOUR

T1 - Mechanism of recoil implantation reactions of technetium and ruthenium in metal acetylacetonates

AU - Sekine, T.

AU - Yoshihara, K.

PY - 1986/6/1

Y1 - 1986/6/1

N2 - Recoil implantation of Tc and Ru in metal acetylacetonates were performed using ruthenium metal as a source and MIII/acac/3 and MII/acac/2 complexes as catchers. The recoil atoms were obtained by100Ru/γ, p/99mTc and98Ru/γ, n/97Ru reactions. The yields of Tc/acac/3 and Ru/acac/3 were clearly dependent on the force constant of the bond between the central metal atom and oxygen in acetylacetone K/M-O/. A plot of the yield vs. 1/K(M-O) showed a linear relationship. However, the yield of Tc/acac/2 implanted in M/acac/2 did not show such a dependence on the force constant. The difference of the mechanism of complex formation between Tc/acac/3 and Tc/acac/2 was discussed on the basis of a reaction cage surrounding the recoil atom and of reaction time necessary for competition between the recoil atom and the central metal of the catcher complex.

AB - Recoil implantation of Tc and Ru in metal acetylacetonates were performed using ruthenium metal as a source and MIII/acac/3 and MII/acac/2 complexes as catchers. The recoil atoms were obtained by100Ru/γ, p/99mTc and98Ru/γ, n/97Ru reactions. The yields of Tc/acac/3 and Ru/acac/3 were clearly dependent on the force constant of the bond between the central metal atom and oxygen in acetylacetone K/M-O/. A plot of the yield vs. 1/K(M-O) showed a linear relationship. However, the yield of Tc/acac/2 implanted in M/acac/2 did not show such a dependence on the force constant. The difference of the mechanism of complex formation between Tc/acac/3 and Tc/acac/2 was discussed on the basis of a reaction cage surrounding the recoil atom and of reaction time necessary for competition between the recoil atom and the central metal of the catcher complex.

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DO - 10.1007/BF02163054

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JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

SN - 0022-4081

IS - 4

ER -

Mechanism of recoil implantation reactions of technetium and ruthenium in metal acetylacetonates

Abstract

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