摘要

A chiral mononuclear Dy-III complex, formulated [Dy(PNO)(6)(H2O)(2)]Cl-3 (1) (PNO = pyridine-N-oxide), has been prepared by using an achiral ligand through spontaneous resolution. Structure analyses show that complex 1 consists of a Dy-III mononuclear unit and such units interact with each other by hydrogen bonds to form helical chains along a axis. The crystals of 1 are optically active and opposite Cotton effects can be observed in the circular dichroism (CD) spectra. Magnetic, studies reveal that complex 1 exhibits field-induced single molecule magnet behavior with an energy hairier of 49 K.