Abstract
AbstractThree novel polymeric compounds [Ni(dien)Ni(CN)4]n(H2O)n (1), [Ni(dien)Pd(CN)4]n (2), and [Ni(dien)Pt(CN)4]n (3) were synthesised by reaction of [{Ni(dien)(H2O)}2(μ‐ox)](PF6)2 with [M(CN)4]2− (M = Ni, Pd, Pt) in aqueous solution. The structure of these compounds contains two [Ni(dien)]2+ cationic units bridged by two [M(CN)4]2− anions in a cis fashion, generating a square‐shaped [Ni2−M2] metal core. The different linking modes between the cores afford a 2D bilayer with encapsulated water in compound 1 and corrugated layers in compounds 2 and 3. These coordination modes are compared to the different bridging modes of tetracyanometalate‐containing compounds retrieved from the CSD database. The three compounds present a very weak antiferromagnetic coupling between the octahedrally coordinated NiII ions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)
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