Triplet ground state(S = 1)pegylated bis(aminoxyl)diradical:synthesis and the effect of water on magnetic properties

摘要

The synthesis and magnetic characterization of pegylated bis(aminoxyl)diradical with an S = 1 ground state are presented,revealing water-induced changes in the molecular conformation and magnetic properties.Triplet ground state(S = 1)organic diradicals with strong ferromagnetic coupling are widely used as building blocks for organic and organometallic magnets.Only a few diradicals are both stable at ambient conditions and possess ferromagnetic coupling of such strength that the singlet-triplet energy gap(17)is far greater than the thermal energy at room temperature.