A family of planar hexanuclear CoLn clusters with lucanidae-like arrangement and single-molecule magnet behavior

Qipeng Li; Yan Peng; Jinjie Qian; Tong Yan; Lin Du; Qihua Zhao

doi:10.1039/c9dt02103e

A family of planar hexanuclear CoLn clusters with lucanidae-like arrangement and single-molecule magnet behavior

Dalton Trans. 2019 Sep 14;48(34):12880-12887. doi: 10.1039/c9dt02103e. Epub 2019 Aug 7.

Authors

Qipeng Li¹, Yan Peng², Jinjie Qian³, Tong Yan⁴, Lin Du⁴, Qihua Zhao⁴

Affiliations

¹ Key Laboratory of Medicinal Chemistry for Natural Resource Education Ministry, School of Chemical Science and Technology, Pharmacy, Yunnan University, Kunming, 650091, P.R. China. lindu@ynu.edu.cn qhzhao@ynu.edu.cn and Science and Technology Department, College of Chemistry and Chemical Engineering, Zhaotong University, Zhaotong, 657000, P. R. China.
² Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesser strasse 15, 76131, Karlsruhe, Germany and Institute of Nanotechnology, Karlsruhe Institute of Technology, Postfach 3640, 76021, Karlsruhe, Germany. yan.peng@kit.edu.
³ College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China.
⁴ Key Laboratory of Medicinal Chemistry for Natural Resource Education Ministry, School of Chemical Science and Technology, Pharmacy, Yunnan University, Kunming, 650091, P.R. China. lindu@ynu.edu.cn qhzhao@ynu.edu.cn.

PMID: 31389453
DOI: 10.1039/c9dt02103e

Abstract

A family of planar hexanuclear CoLn clusters with the hydroxyl and nitrogen rich ligand 2-[bis(pyridin-2-ylmethyl) amino]-2-(hydroxymethyl)propane-1,3-diol (H₃L), formulated as [Co₄Ln₂(μ₃-O)₂(μ-N₃)₂(OH)₂(H₂O)₂(HL)₄]·(CH₃CO₂)₂·20H₂O [Ln = Dy (1), Gd (2), Tb (3), Eu (4) and Ho (5)], have been synthesized and structurally characterized. They are isomorphous and feature a lucanidae-like arrangement. They are the first examples of 3d-4f clusters with the H₃L ligand. In addition, the magnetic properties of 1-5 have been investigated and the single-molecule magnet (SMM) behaviour is observed for 1.