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Issue 6, 2017
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An iron(III)-centred ferric wheel Fe⊂{Fe6} with a siloxane-based bis-salicylidene Schiff base

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Abstract

A new iron(III)-centred ferric wheel Fe⊂{Fe6} of the formula [Fe7(H2L)6(NCS)6](ClO4)3·10H2O, where H4L = N,N′-bis(3-carboxylsalicylidene)-1,3-bis(3-aminopropyl)tetramethyldisiloxane, was synthesised and fully characterised. 57Fe Mössbauer spectra indicate the presence of high spin (S = 5/2) Fe3+ cations adopting a slightly different coordination environment in agreement with the X-ray diffraction structure. There are competing antiferromagnetic exchange interactions along the rim (J1 = −1.00 cm−1) and the radius (J2 = −1.46 cm−1) of the wheel.

Graphical abstract: An iron(iii)-centred ferric wheel Fe⊂{Fe6} with a siloxane-based bis-salicylidene Schiff base

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Publication details

The article was received on 13 Jan 2017, accepted on 18 Jan 2017 and first published on 19 Jan 2017


Article type: Paper
DOI: 10.1039/C7DT00141J
Citation: Dalton Trans., 2017,46, 1789-1793
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    An iron(III)-centred ferric wheel Fe⊂{Fe6} with a siloxane-based bis-salicylidene Schiff base

    S. Shova, M. Cazacu, G. Novitchi, G. Zoppellaro, C. Train and V. B. Arion, Dalton Trans., 2017, 46, 1789
    DOI: 10.1039/C7DT00141J

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