The magnetic properties to 4·2K of the complex di-µ-hydroxybis(bipyridyl)dicopper(II) sulphate pentahydrate

Abstract
The low-temperature magnetic susceptibility of the dimeric complex di-µ-hydroxybis(bipyridyl)dicopper(II) sulphate pentahydrate gives further support for the conclusion that the complex has a triplet ground state with a singlet excited state lying about 48 cm–1 above the ground state.