for what purpose is it used?
In radiotherapy for small tumours.
Rhodocene
Beta- and gamma-emitting radionuclides used medically include I, Fe, and Ca, and Rh has been proposed for use in radiotherapy for small tumours.
what is rhodocene? aA chemical compound with the formula [Rh(CH)].
wiki:18239259
Rhodocene [SEP] Biomedical use of a derivative
This compound, like other rhodocene derivatives, has an unstable 19-valence electron configuration and rapidly oxidises to the expected cationic rhodocenium–haloperidol species. The separation of the ruthenocenyl–haloperidol and the rhodocenium–haloperidol species and the distributions of each amongst bodily organs has been studied. Rh has a half-life of 56 min and emits a gamma ray of energy 39.8 keV, so the gamma-decay of the rhodium isotope should follow soon after the beta-decay of the ruthenium isotope. Beta- and gamma-emitting radionuclides used medically include I, Fe, and Ca, and Rh has been proposed for use in radiotherapy for small tumours.