Magnetic and Optical Properties of Novel Lanthanide(iii) Complexes Based on Schiff Base and β-Diketonate Ligands
Yufeng Jia A , Hongfeng Li A , Peng Chen A , Ting Gao A B C , Wenbin Sun A and Pengfei Yan A CA Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, No. 74, Xuefu Road, Nangang District, Harbin 150080, China.
B Key Laboratory of Chemical Engineering Process and Technology for High-Efficiency Conversion, College of Heilongjiang Province, No. 74, Xuefu Road, Nangang District, Harbin 150080, China.
C Corresponding authors. Email: gaotingmail@sina.cn; yanpf@vip.sina.com
Australian Journal of Chemistry 71(7) 527-533 https://doi.org/10.1071/CH18136
Submitted: 2 April 2018 Accepted: 11 June 2018 Published: 18 July 2018
Abstract
A series of lanthanide-based self-assembling complexes constructed from Schiff base and β-diketonate ligands have been synthesised by the same method. They are one dimensional complexes ({[Ln(H2L)(tta)2(OAc)]·0.5H2O}n (Ln = Eu (1), Gd (2), Dy (3), Yb (4)); H2L = N,N′-bis(salicylidene)butane-1,4-diamine, tta = 2-thenoyltrifluoroacetone). Complexes 1 and 4 exhibit characteristic metal-centred emission in the solid state. The lifetimes and quantum yields of luminescence were also determined. Magnetic analysis reveals that complex 3 exhibits field-induced single-molecule magnet (SMM) behaviour with an energy barrier of 24.07 K.
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