Coordination compounds of dimethylthallium (iii) with 5- (2-pyridinylmethylene) rhodanine or 5- (2-pyridinylmethylene)-2-thiohydantoin: an unusual case of desmotropic isomerism - Casas, J S; Castellano, Eduardo Ernesto; Macias, A; Playa, N; Sanchez, A; Sordo, J; Varela, J M; Zukerman-Schpector, Júlio (Inorganica Chimica Acta, 1995)