Thioalcohols as bridging ligands in polynuclear Pr III /Cu II and Ba II /Cu II complexes. Syntheses, structures and magnetic properties of Pr 2 Cu 4 (tde) 3 (Htde) 2 (hfacac) 4 (µ 6 -O), Ba 2 Cu 2 (Htde) 2 (hfacac) 4 and Cu 4 (tde) 2 (hfacac) 4 , (H 2 tde = HOCH 2 CH 2 SCH 2 CH 2 OH)‡

The syntheses of heterometallic compounds involving praseodymium, barium and copper ions by using 2,2′-thiodiethanol (H2tde) as the bridging ligand have been investigated. Three new polynuclear compounds, Pr2Cu4(tde)3(Htde)2(hfacac)4(µ6-O) 1, Ba2Cu2(Htde)2(hfacac)4 2 and Cu4(tde)2(hfacac)4 3 have been obtained and characterized structurally. The metal atoms in 1 have an octahedral arrangement with the two PrIII occupying two opposite vertices. …