Isolation, structure and magnetic properties of two novel core-shell 3d-4f heterometallic nanoscale clusters

Qingfang Lin, Yu Zhang, Weiwei Cheng, Ying Liu, Yan Xu

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Two novel core-shell Ni-Ln nanosized clusters, Na4(H3O)4[Nd38Ni42.5(IDA)42(OAc)4(CH3CH2OH)2(CO3)183-OH)623-O)6(H2O)12]Cl6·26H2O (1) and Na[Pr42Ni383-OH)713-O)4(IDA)38(NH2CH2COO)2(OAc)2(CH3CH2OH)2(CO3)16(H2O)6Cl7]Cl3·37H2O (2) (IDA = iminodiacetate), were successfully prepared using the Cl anion and the flexible ligand iminodiacetic acid. Structural analysis indicates that the discrete dumbbell-shaped 3d-4f heterometallic cluster in 1 is constructed from two {Nd19Ni21} clusters connected by one {NiO6} unit, whereas the bowknot-shaped nanosized cluster is composed of two {Pr19Ni19} clusters ligated by two {Pr2} units and CO32− anions. The formation of both compounds indicates that Cl ions play important roles and act not only as balance anions but also as template and bridging ligands. The magnetic properties of compounds 1 and 2 were investigated, and it was revealed that they display dominant antiferromagnetic exchange.

Original languageEnglish
Pages (from-to)643-646
Number of pages4
JournalDalton Transactions
Volume46
Issue number3
DOIs
StatePublished - 2017

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