title: [Dy(acac)₃(dppn)]·C₂H₅OH: construction of a single-ion magnet based on the square-antiprism dysprosium(III) ion.
abstract: The present work reports a new mononuclear Dy(III) complex [Dy(acac)3(dppn)]·C2H5OH (1) (acac = acetylacetone, dppn = benzo[i]dipyrido-[3, 2-a:2',3'-c]phenazine). X-ray crystallography analysis reveals that compound 1 is a discrete molecular complex and the Dy(III) center lies in a square-antiprism coordination environment. Furthermore, complex 1 shows single-ion magnet (SIM) behavior. Compared to the reported complexes [Dy(dppz)(acac)3]·CH3OH, [Dy(dpq)(acac)3] and [Dy(phen)(acac)3], complex 1 exhibits a different energy barrier, which might be raised from the different coordination environment caused by the different auxiliary co-ligand dppn. The energy barrier variations of these Dy(III)-complexes are consistent with their square antiprism structural features.
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China. yubindong@sdnu.edu.cn.
authors.forename: Gong-Jun
authors.initials: GJ
authors.lastname: Chen
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhou
authors.forename: Guo-Xia
authors.initials: GX
authors.lastname: Jin
authors.forename: Yu-Bin
authors.initials: YB
authors.lastname: Dong