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RESEARCH PRODUCT
Synthesis and characterisation of a novel ferrimagnetic chain based on copper(II) and rhenium(IV)
Marta Orts-arroyoFrancesc LloretCarlos Rojas-dottiJosé Martínez-lilloAdrián Sanchis-peruchosubject
Materials science010405 organic chemistryCoordination polymerGeneral Chemical Engineeringchemistry.chemical_elementGeneral ChemistryCrystal structureRhenium010402 general chemistry01 natural sciencesMagnetic susceptibilityOxalate0104 chemical sciencesCrystallographychemistry.chemical_compoundchemistryFerrimagnetismImidazoleOrthorhombic crystal systemdescription
Abstract A novel one-dimensional copper(II)–rhenium(IV) coordination polymer of formula {[ReIVBr4(μ-ox)CuII(pyim)2]·MeCN}n (1) [ox = oxalate anion, pyim = 2-(2′-pyridyl)imidazole] has been prepared and characterised. Powder X-ray diffraction measurements on a sample of 1 support the purity of the bulk sample, whereas single-crystal X-ray diffraction shows that 1 crystallises in the orthorhombic system with space group Pbca. The crystal structure of 1 is made up of [CuII(pyim)2]2+ cations and [ReBr4(ox)]2− anions linked through bridging bromide and oxalate groups, which generate alternating CuII and ReIV chains. Variable-temperature magnetic susceptibility measurements performed on 1 reveal an antiferromagnetic coupling between the CuII and ReIV ions; at lower temperatures, this interaction leads to the occurrence of ferrimagnetic behaviour in 1. Compound 1 is the first ferrimagnetic compound obtained with the [ReBr4(ox)]2− precursor.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-06-01 | Comptes Rendus Chimie |