Vibronic emission transitions of gadolinium(III) in sodium lanthanum sulfate hydrate

Abstract

Cooperative vibronic emission transitions are reported for Gd3+ in NaLa(SO4)2H2O. They involve the electronic 6P → 8S transition on the Gd3+ ion and the asymmetric-valence-vibrational transition on the SO42− anion and the H2O molecule which are both coordinated to the Gd3+ ion.