Adducts of uranium tetrahalides with N-donor ligands and properties of the octathiocyanatouranate(IV) anion in a cubical configuration

Abstract

Electronic spectra and magnetic measurements are reported for some new adducts of uranium tetrachloride and uranium tetrabromide with aromatic, alicyclic, and aliphatic amines; and for some previously reported amine adducts of uranium tetrachloride and also for the compound [(Et₄N)₄][U(NCS)₈] in which the anion has a cubical configuration. The data suggest that the adducts with pyridine and piperidine may have an unusual configuration.