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Magneto-structural correlations in a family of ReIVCuII chains based on the hexachlororhenate(IV) metalloligand

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Abstract

Six novel one-dimensional chloro-bridged ReIVCuII complexes of formula {[Cu(L)4][ReCl6]}n, where L = imidazole (Imi, 1), 1-methylimidazole (Meim, 2), 1-vinylimidazole (Vim, 3), 1-butylimidazole (Buim, 4), 1-vinyl-1,2,4-triazole (Vtri, 5) and N,N′-dimethylformamide (DMF, 6) are characterised structurally, magnetically and theoretically. The structures exhibit significant differences in Cu–Cl bond lengths and Re–Cl–Cu bridging angles, resulting in large differences in the nature and magnitude of magnetic exchange interactions between the ReIV and CuII ions. Theoretical calculations reveal the coupling to be primarily ferromagnetic, increasing in magnitude as the bridging angle becomes smaller and the bond lengths shorten.

Graphical abstract: Magneto-structural correlations in a family of ReIVCuII chains based on the hexachlororhenate(iv) metalloligand

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Publication details

The article was received on 19 Jun 2017, accepted on 24 Jul 2017 and first published on 24 Jul 2017


Article type: Paper
DOI: 10.1039/C7DT02216F
Citation: Dalton Trans., 2017, Advance Article
  • Open access: Creative Commons BY license
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    Magneto-structural correlations in a family of ReIVCuII chains based on the hexachlororhenate(IV) metalloligand

    A. H. Pedersen, M. Julve, J. Martínez-Lillo, J. Cano and E. K. Brechin, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT02216F

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