Tuning Magnetic Relaxation in Square-Pyramidal Dysprosium Single-Molecule Magnets Using Apical Alkoxide Ligands  

作　　者：Zhenhua Zhu Yi-Quan Zhang Xiao-Lei Li Mei Guo Jingjing Lu Shuting Liu Richard A.Layfield Jinkui Tang 

机构地区：[1]State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022 [2]University of Chinese Academy of Sciences,Beijing 100049 [3]Jiangsu Key Lab for NSLSCS,School of Physical Science and Technology,Nanjing Normal University,Nanjing 210023 [4]University of Science and Technology of China,Hefei 230026 [5]Department of Chemistry,School of Life Sciences,University of Sussex,Brighton BN19QR

出　　处：《CCS Chemistry》2021年第12期388-398,共11页中国化学会会刊（英文）

基　　金：The authors thank the National Natural Science Foundation of China(nos.21525103,21871247,and 21973046);the Key Research Program of Frontier Sciences,CAS(no.ZDBS-LY-SLH023);the ERC(no.CoG 646740);the EPSRC(no.EP/M022064/1)for financial support;J.T.and R.A.L.gratefully acknowledge support from the Royal Society-Newton Advanced Fellowship(no.NA160075).

摘　　要：Eight square-pyramidal dysprosium complexes of the type[Dy(X)(DBP)_(2){TMG(H)}_(2)]were synthesized,where TMG(H)denotes 1,1,3,3-tetramethylguanidine,X denotes an alkoxide ligand or anionic guanidinate in the apical position,and DBP denotes 2,6-di-tert-butylphenoxide.These complexes,expressed as 5-Dy-X,are single-molecule magnets(SMMs)with properties dependent on the nature of the apical X ligand.

关 键 词：single-molecule magnets DYSPROSIUM magnetic relaxation energy barrier twocoordination design 

分 类 号：O61[理学—无机化学]