Dendrimer-like cyanoruthenate anions with high potential connectivity derived from a [Ru(bpym)3]2+ core |
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| Authors: | Sofia Derossi Michael D. Ward |
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| Affiliation: | Department of Chemistry, University of Sheffield, Sheffield S3 7HF, UK |
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| Abstract: | Reaction of [Ru(bpym)3]2+ (bpym = 2,2′-bipyridmidine) with hexacyanoruthenate under forcing conditions affords a mixture of the trinuclear species [(bpym)Ru{(µ-bpym)Ru(CN)4}2]2?, [1]2?, and the tetranuclear species [Ru{(µ-bpym)Ru(CN)4}3]4?, [2]4?, in which two or three (respectively) of the peripheral vacant bpym binding sites of [Ru(bpym)3]2+ are occupied by {Ru(CN)4}2? fragments. Thus, [1]2? and [2]4? have eight and twelve externally-directed cyanide groups respectively for use in forming high connectivity coordination networks. The crystal structure of HK[1]·2MeOH·6.5H2O reveals a one-dimensional ladder structure in which [1]2? anions are connected by (i) cyanide/K+ and (ii) bpym/K+ coordination interactions. |
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