CuII chain compound showing a ferromagnetic coupling through triple N1,N2-1,2,4-triazole bridges

Garcia, Yann, Van Koningsbruggen, Petra J., Bravic, Georges, Chasseau, Daniel and Kahn, Olivier (2003). CuII chain compound showing a ferromagnetic coupling through triple N1,N2-1,2,4-triazole bridges. European Journal of Inorganic Chemistry, 2003 (2), pp. 356-362.

Abstract

[Cu(hyetrz)3](CF3SO3)2·H2O [hyetrz = 4-(2′-hydroxyethyl)-1,2,4-triazole] represents the first structurally characterised ferromagnetically coupled CuII chain compound containing triple N1,N2-1,2,4-triazole bridges. catena-[μ-Tris{4-(2′-hydroxyethyl)-1,2,4-triazole-N1,N2}copper(II)] bis(trifluoromethanesulfonate) hydrate (C14H23F6S2O10CuN9) crystallises in the triclinic space group Pl, a = 13.54(3), b = 14.37(3), c = 15.61(4) Å, α = 95.9(1), β = 104.9(1), γ = 106.5(1)°, V = 2763(11) Å3, Z = 4 (CuII units). The CuII ions are linked by triple N1,N2-1,2,4-triazole bridges yielding an alternating chain with Cu1−Cu2 = 3.8842(4) Å and Cu2−Cu3 = 3.9354(4) Å. Analysis of the magnetic data according to a high-temperature series expansion gives a J value of +1.45(3) cm−1. The nature and the magnitude of the ferromagnetic exchange have been discussed on the basis of the structural features. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).

Publication DOI: https://doi.org/10.1002/ejic.200390048
Divisions: Engineering & Applied Sciences > Chemical engineering & applied chemistry
Uncontrolled Keywords: chain structures,copper,N ligands,bridging ligands,magnetic properties
Full Text Link: http://onlineli ... 390048/abstract
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Published Date: 2003-01
Authors: Garcia, Yann
Van Koningsbruggen, Petra J.
Bravic, Georges
Chasseau, Daniel
Kahn, Olivier

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