Synthesis,Structure and Magnetic Behavior of a Novel Series of Trinuclear Windwheel Complexes  

作　　者：Rong Luo Chen-Ze Xie Ming-Guang Chen Hai-Yan Shi Xiang-Jian Kong Yu-Hua Fan Feng Shao 

机构地区：[1]Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao,Shandong,266100 China [2]Baotou Research Institute of Rare Earths,Baotou,Inner Mongolia,014040 China [3]State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,Fujian,361005 China

出　　处：《Chinese Journal of Chemistry》2023年第24期3662-3668,共7页中国化学（英文版）

基　　金：supported by the Natural Science Foundation of Shandong Province(No.ZR2021QB140);the Fundamental Research Funds for the Central Universities(No.202113051);F.S.thanks the Youth Talent Project support(Nos.202001013196,202101013108)from Ocean University of China;the Open Project support(No.202017)from the State Key Laboratory of Physical Chemistry of Solid Surfaces;Xiamen University and the Open Project support(No.M202317)from the State Key Laboratory of Microbial Technology,Shandong University.

摘　　要：A new family of trinuclear windwheel complexes with molecular formula [M^(II)_(3)(tpa)_(3)(μ-ttc)](ClO_(4))_(3)·n(sol) (ttc = 1,3,5-triazine-2,4,6-trithiol;tpa = tris(2-pyridylmethyl)amine;M = Mn,n = 2,sol = CH_(3)CN,1;M = Co,n = 1,sol = CH_(3)CN,2;M = Ni,n = 0,3) were synthesized and characterized.Single-crystal X-ray diffraction revealed that three metal centers in 1—3 are connected by ttc bridge,forming a regular triangular MII3 core.Each metal center is bonded by chelating S,N atoms from ttc and by N atoms from tpa.Magnetic studies showed that 1—3 displayed antiferromagnetic behavior and further gave the easy-axis anisotropy (D = −0.77 cm^(−1) for 1 and −8.13 cm^(−1) for 2) and easy-plane anisotropy (D = 5.08 cm^(−1) for 3).Moreover,2 exhibited field-induced slow magnetic relaxation behavior and their effective energy barriers were roughly evaluated Ueff = 6.9 K.

关 键 词：Cluster compounds Crystal growth Magnetic properties Slow magnetic relaxation Magnetic anisotropy 

分 类 号：O62[理学—有机化学]