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Studies of the Yields of 57 Fe(II)-species Produced after the EC-decay and of 60 Co(II)-species Produced in the (n, γ) Reaction in Cobalt(III) Coordination Compounds

1978; Oxford University Press; Volume: 51; Issue: 9 Linguagem: Inglês

10.1246/bcsj.51.2583

1348-0634

Hirotoshi Sano, Masayuki Harada, Kazutoyo Endo,

Radiopharmaceutical Chemistry and Applications

Abstract The yields of 57Fe(II)-species produced after EC-decay were compared with those of 60Co(II)-species produced in the 59Co(n,γ)60Co reaction for twelve cobalt(III) coordination compounds. The results indicate that the radiochemical yield of 60Co(II)-species correlates with the yield of 57Fe(II)-species except in the case of [Co(NH3)6]2(CrO4)3. The anomalously low yield of 57Fe(II)-species in [Co(NH3)6]2(CrO4)3 is ascribed to the reaction of chromate anions with ammine ligands initiated by the nuclear transformation in a solid.