Controllable syntheses and magnetic properties of novel homoleptic triple-decker lanthanide complexes

Feng Gao, Lei Wang, Guang Zhou Zhu, Yu Han Liu, Han Yang, Xiang Li, Ke Yang

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Four novel homoleptic triple-decker lanthanide complexes, [Ln2(L)(Cl-salphen)2]·0.5ClCH2CH2Cl (Ln3+ = Gd3+ (1), Ho3+ (2), Tb3+ (3), and Dy3+ (4)), have been designed and synthesized based on a Schiff base ligand N,N′-bis(5-chlorosalicylidene)-o-phenylenediamine (Cl-salphenH2) and the building blocks [(acac)4Ln2(L)]; these complexes were derived from a closed-macrocyclic ligand (H2L) obtained by the [2 + 2] template condensation of 2,6-diformyl-4-methylphenol and 1,3-diaminopropane in the presence of lanthanide acetylacetonates. Single-crystal X-ray analyses show that central Ln3+ ions adopt distorted square antiprism conformations with D4d symmetry. Theoretical analysis and magnetic measurements reveal that Dy complex 4 behaves as a typical SMM with the characteristics of slow magnetic relaxation behavior and intermetallic ferromagnetic interaction.

Original languageEnglish
Pages (from-to)13360-13368
Number of pages9
JournalDalton Transactions
Volume48
Issue number35
DOIs
StatePublished - 2019

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