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Synthesis, Structure and Magnetic Properties of a Series of Defective Dicubic Ln2Ni2 Clusters

  • Wen-Li Ou
  • Mei-Jiao Li
  • Hua-Hong Zou
  • Hai-Ling Wang
  • Fu-Pei Liang
Original Paper
  • 45 Downloads

Abstract

The coupling reaction of 2-hydroxy-3-methoxybenzaldehyde with 3-amino-1,2-propanediol under solvothermal conditions gives Schiff-base ligand 3-[(2-hydroxy-3-methoxy)-phenylmethyleneamino]-1,2-propanediol (H3L). Further reaction of a polyhydroxy Schiff-base of H3L with Ln(NO3)3·6H2O and Ni(NO3)2·6H2O in the presence of triethylamine as the base afforded three heterdimetallic clusters with defective dicubic topology, namely, [Ln2Ni2(L)23-OMe)2(CH3CN)2(NO3)4]·2CH3CN (Ln = Sm (1), Er (2), Gd (3)). They were characterized by single-crystal X-ray diffraction, thermal analysis, IR spectroscopy, elemental analyses, and magnetic susceptibility. The magnetic studies of 1 and 2 revealed the presence of dominant antiferromagnetic interactions, and compound 3 exhibited ferromagnetic coupling and a large magnetocaloric effect with 17.85 J kg−1 K−1 at 2 K for ΔH = 5 T.

Keywords

Crystal structure Defective dicubic Magnetic properties Magnetocaloric effect 

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 21601038 and 51572050), Guangxi Natural Science Foundation (Nos. 2015GXNSFDA139007 and 2016GXNSFAA380085), Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials (EMFM20162107).

Supplementary material

10876_2018_1476_MOESM1_ESM.docx (296 kb)
Supplementary material 1 (DOCX 296 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and PharmacyGuangxi Normal UniversityGuilinPeople’s Republic of China
  2. 2.Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and BioengineeringGuilin University of TechnologyGuilinPeople’s Republic of China

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