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

Jing Xiang, Li Hui Jia, Bing Wu Wang, Shek Man Yiu, Shie Ming Peng, Wai Yeung Wong, Song Gao, Tai Chu Lau

Research output: Journal article publicationJournal articleAcademic researchpeer-review

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.
Original languageEnglish
Pages (from-to)3876-3887
Number of pages12
JournalDalton Transactions
Volume42
Issue number11
DOIs
Publication statusPublished - 21 Mar 2013
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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