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Issue 19, 2012
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A novel triazidoruthenium(III) building block for the construction of polynuclear compounds

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Abstract

Reaction of [RuVI(N)(sap)Cl] with excess NaN3 affords a novel paramagnetic triazidoruthenium(III) complex [RuIII(sap)(N3)3]2−, which is isolated as a PPh4+ salt (1). Reaction of 1 with Ni2+ and Co2+ ions produce two isostructural hexanuclear [Ru4M2] compounds, [RuIV4MII23-OMe)2(μ-OMe)2(μ-N)2(μ-N3)2(μ-Ophenoxy)2(sap)4 (MeOH)4] (M = Ni 2 or Co 3). The molecular structures of 1–3 have been determined by X-ray crystallography. 1 is a mononuclear ruthenium(III) compound where three azide ligands are bonded to ruthenium in a meridional fashion, while compounds 2 and 3 are isostructural hexanuclear compounds containing a defective face-sharing dicubane-like core with two missing vertexes. Variable-temperature dc magnetic susceptibility studies have been carried out for 2 and 3. These data indicate that there are four diamagnetic Ru(IV) ions in 2 and 3 and there is ferromagnetic interaction between the two Ni2+ in 2 and Co2+ in 3via the methoxy bridges.

Graphical abstract: A novel triazidoruthenium(iii) building block for the construction of polynuclear compounds

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Publication details

The article was received on 23 Sep 2011, accepted on 05 Jan 2012 and first published on 13 Feb 2012


Article type: Paper
DOI: 10.1039/C2DT11810F
Citation: Dalton Trans., 2012,41, 5794-5798
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    A novel triazidoruthenium(III) building block for the construction of polynuclear compounds

    J. Xiang, L. Jia, W. Man, K. Qian, G. Lee, S. Peng, S. Yiu, S. Gao and T. Lau, Dalton Trans., 2012, 41, 5794
    DOI: 10.1039/C2DT11810F

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