Tuning magnetic exchange and relaxation dynamics in dinuclear Dy(III) single-molecule magnets via co-ligand modulation on a hydrazone-based Schiff base platform

A new hydrazone-based Schiff base ligand, (E)-N′-(2-hydroxy-3-methoxy-5-methylbenzylidene)nicotinohydrazide (H2L), has been employed for the synthesis of a family of four dinuclear Dy(III) complexes, [Dy2(L)2(OAc)2(H2O)2]∙H2O (1), [Dy2(L)(dbm)2(CH3OH)2]∙2CH2Cl2 (2), [Dy2(L)(pnba)2(H2O)0.8(CH3OH)1.2]∙2H2O∙2.8CH3OH (3), and [Dy2(L)2(mnba)2(H2O)2(CH3OH)2]∙2CH3OH...