title: Half-sandwich lanthanide crown ether complexes with the slow relaxation of magnetization and photoluminescence behaviors.
abstract: Four half-sandwich type mononuclear lanthanide crown ether complexes with the formula [Ln(12-crown-4)(NO3)3] (Ln3+= Dy3+(1), Tb3+(2), Ho3+(3), and Er3+(4); 12-crown-4 = 1,4,7,10-tetraoxacyclododecane) were successfully synthesized and structurally characterized. Ac magnetic susceptibility measurements reveal that dysprosium complex 1 behaves as a typical single-ion magnet, while solid state photoluminescence studies show that complexes 1 and 2 have the respective lanthanide(iii) luminescence characteristics.
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China. gf2016@jsnu.edu.cn lxl@jsnu.edu.cn.
authors.forename: Feng
authors.identifier: http://orcid.org/0000-0003-3020-8489
authors.initials: F
authors.lastname: Gao
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China. gf2016@jsnu.edu.cn lxl@jsnu.edu.cn.
authors.forename: Feng-Lei
authors.initials: FL
authors.lastname: Yang
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China. gf2016@jsnu.edu.cn lxl@jsnu.edu.cn.
authors.forename: Xiaowan
authors.initials: X
authors.lastname: Feng
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China. gf2016@jsnu.edu.cn lxl@jsnu.edu.cn.
authors.forename: Huimin
authors.initials: H
authors.lastname: Xu
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China. gf2016@jsnu.edu.cn lxl@jsnu.edu.cn.
authors.forename: Wang
authors.initials: W
authors.lastname: Sun
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China. gf2016@jsnu.edu.cn lxl@jsnu.edu.cn.
authors.forename: Huan
authors.initials: H
authors.lastname: Liu
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China. gf2016@jsnu.edu.cn lxl@jsnu.edu.cn.
authors.forename: Xiu-Ling
authors.initials: XL
authors.lastname: Li