Hydrothermal synthesis, crystal structure, luminescent and magnetic properties of a new mononuclear GdIII coordination complex

A new lanthanide-based coordination complex, {[Gd(2-stp)2(H2O)6].2(4,4'-bipy).4(H2O)}, complex 1 [2-stp = 2-sulfoterephthalate and 4,4'-bipy = 4,4'-bipyridine] has been synthesized and structurally characterized. The solid-state photoluminescence measurements exhibit only a green light broad band emission belonging to the ligands and has any no-metal-centered luminescence. Meanwhile, Variable-temperature magnetic susceptibility and isothermal magnetization as function of external magnetic field for complex 1 is studied which reveal mainly the presence of antiferromagnetic interaction.84