Schiff base complexes derived from 3-substituted phenyl-4-amino-thiolato-1,
2,4-triazoles and acetylferrocene (LH), with lanthanum(III) and praseodymiu
m(III) of the type [M(L)(3)] have been prepared and characterised by elemen
tal analysis, electrical conductance, magnetic moments and spectral (electr
onic, i.r., H-1-n.m.r. and C-13-n.m.r.) data. The thermal behaviour of sele
cted complexes was investigated by t.g. and d.t.g. techniques.