Mononuclear Dy(III) complex based on bipyridyl-tetrazolate ligand with field-induced single-ion magnet behavior and luminescent properties

摘要

A new mononuclear Dy(III) complex, namely f[Dy(tbpy)(2)(NO3)(DMF)]center dot DMF) (1) (tbpy = 6-(tetrazol-5-yl)-2,2'-bipyridine, DMF = N,N-dimethylformamide), has been synthesized and characterized. Structural measurements reveal that the Dy(III) ion displays a distorted tricapped trigonal prism with two mono-anionic tridentate chelating ligands, nitrate anion and N,N-dimethylformamide molecule. Magnetic investigation indicates that the title complex 1 exhibits field-induced single-ion magnet behavior. Moreover, the studies on photoluminescence properties show that complex 1 displays relatively strong fluorescent emission, which are typical narrow emission bands of lanthanide ion. (C) 2017 Elsevier B.V. All rights reserved.