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  • 1 Tohoku University Department of Chemistry, Faculty of Science 980 Sendai Japan
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Mechanisms of chemical reactions initiated by recoil implantation were studied in the systems51Cr+M/acac/351Cr/acac/3 where M is a trivalent metal. The yield of51Cr/acac/3 increased linearly with an increase of inverse of the force constant of metal-oxygen bonding K(M–O). This indicates that there is competition between the implanted51Cr atom and M. However, exception for this trend was the case of Co/acac/3 catcher, for which the yield of51Cr/acac/3 was much higher than that expected for a competition reaction. Complex features of the replacement reaction caused by implantation are discussed in this system.