title: Coordination-perturbed single-molecule magnet behaviour of mononuclear dysprosium complexes.
abstract: By changing the ratio of reactants, two mononuclear Dy complexes, [Dy(phen)(acac)(3)] (1) and [Dy(phen)(2)(NO(3))(2)(acac)]·H(2)O (2) have been synthesized and structurally characterized. In 1, a Dy atom bearing square-antiprism coordination geometry exhibits SMM behaviour, while compound 2 with a bicapped-square-antiprism geometry does not show such SMM properties. The different magnetic behaviours seen in 1 and 2 are probably due to a different coordination environment and ligand field around the Dy(III) ions. The results proved the important influence of the structural environment of a SMM on its magnetic behaviour.
authors.affiliation: Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry, Nankai University, Tianjin 300071, P. R. China.
authors.forename: Gong-Jun
authors.initials: GJ
authors.lastname: Chen
authors.forename: Chun-Yan
authors.initials: CY
authors.lastname: Gao
authors.forename: Jin-Lei
authors.initials: JL
authors.lastname: Tian
authors.forename: Jinkui
authors.initials: J
authors.lastname: Tang
authors.forename: Wen
authors.initials: W
authors.lastname: Gu
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.forename: Shi-Ping
authors.initials: SP
authors.lastname: Yan
authors.forename: Dai-Zheng
authors.initials: DZ
authors.lastname: Liao
authors.forename: Peng
authors.initials: P
authors.lastname: Cheng