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Synthesis,Structure and Magnetic Behavior of a Novel Series of Trinuclear Windwheel Complexes
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作者 Rong Luo chen-ze xie +4 位作者 Ming-Guang Chen Hai-Yan Shi Xiang-Jian Kong Yu-Hua Fan Feng Shao 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2023年第24期3662-3668,共7页
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... 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. 展开更多
关键词 Cluster compounds Crystal growth Magnetic properties Slow magnetic relaxation Magnetic anisotropy
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