http://dx.doi.org/10.1039/C2DT32331A">
 

Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

The synthesis, structures and magnetic properties of polynuclear RuIII–3d (3d = MnII/III, NiII, CuII) compounds based on [RuIII(Q)2(CN)2]−

Language

English

Abstract

The synthesis, crystal structures and magnetic properties of six cyano-bridged heterobimetallic compounds prepared from a paramagnetic Ru III building block, trans-(PPh4)[RuIII(Q) 2(CN)2] (1) (Q = the anion of 8-hydroxyquinoline), are described. 1 reacts with hydrated MnCl2 in MeOH or DMF to produce a trinuclear compound {[RuIII(Q)2(CN)2] 2[MnII(MeOH)4]}·8MeOH (2), or a 1-D zigzag chain {[MnII(DMF)2(Cl)](μ-CN) 2[RuIII(Q)2]}n(3). The Mn II has a distorted octahedral environment in 2 and a trigonal-bipyramidal environment in 3. 1 reacts with [MnIII(L 1)(Cl)(H2O)] in MeOH to produce the 1-D {[Ru III(Q)2](μ-CN)2[MnIII(L 1)]}n (4) that consists of alternating MnIII and RuIII units. 1 also reacts with [CuII(cyclam)Br 2] and [NiII(cyclam)Cl2] in MeOH to produce the trinuclear complexes [RuIII(Q)2(CN2)] 2[MII(cyclam)] (M = CuII (5) and Ni II (6)). On the other hand, the reaction of 1 with [Ni II(cyclen)Cl2] produces a 1-D zigzag chain {([Ru III(Q)2(CN2)][NiII(cyclen)])[Ru III(Q)2(CN2)]}n (7). Compounds 2-4 exhibit antiferromagnetic coupling between RuIII and Mn III/II centres. Antiferromagnetic coupling also occurs between RuIII and CuII centres in 5. On the other hand, compounds 6 and 7 exhibit ferromagnetic coupling between RuIII and Ni II through cyanide bridges. © 2013 The Royal Society of Chemistry.

Publication Date

2013

Source Publication Title

Dalton Transactions

Volume

42

Issue

11

Start Page

3876

End Page

3887

Publisher

Royal Society of Chemistry

ISSN (print)

14779226

ISSN (electronic)

14779234

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