ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Stabilization of daughter ^99mTc after the ß-decay of ⁹⁹Mo in dihydrido-bis(cyclopentadienyl)molybdenum-(⁹⁹Mo)

V. Mikulaj, F. Macášek, and R. Kopunec

Department of Nuclear Chemistry, Faculty of Natural Sciences, Komenský University, 801 00 Bratislava

Abstract: The chem. forms were studied of the stabilization of ^99mTc following the β-decay of ⁹⁹Mo in (C₅H₅)₂⁹⁹MoH₂. ^99mTc was stabilized in high yield in the form (C₅H₅)₂^99mTcH (I). Sublimation with a temp. gradient and paper chromatog. were used for the sepn. of I if the ⁹⁹Mo decayed in the cryst. state. The yield of I was 88 ± 2% by sublimation and 94 ± 4% by paper chromatog. If the decay occurred in benzene the yield of I as detd. by paper chromatog. was 79 ± 3%. If the decay occurred in 3N-HCl the yield was estd. to be 78% by benzene extn.

Full paper in Portable Document Format: 271a23.pdf

Chemical Papers 27 (1) 23–31 (1973)