Synthesis, Crystal Structures and Magnetic Properties of Ion-Pair Complexes with Hydrogen Bonding Network: Ln(DMA)n(H2O)m Cr(CN)6 · xH2O(Ln = Sm, Gd: n = 4, m = 3, x = 2; Ln = Er: n = 3, m = 4, x = 0)

Author： Yan Bing   Wang Shi Xi   Chen Zhi Da  

Publisher： Taylor & Francis Ltd

ISSN： 0095-8972

Source： Journal of Coordination Chemistry, Vol.55, Iss.5, 2002-01, pp. : 573-586

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Abstract

Three ion-pair Ln-Cr complexes [Sm(DMA)4(H2O)3][Cr(CN)6] · 2H2O, [Gd(DMA)3(H2O)4] [Cr(CN)6] · 2H2O and [Er(DMA)3(H2O)4][Cr(CN)6] (DMA = dimethylacetamide) have been synthesized. X-ray structure analyses of the title complexes revealed that there is a hydrogen-bonding network through CN groups and H2O molecules. Variable temperature magnetic susceptibilities indicate weak antiferromagnetic interactions between cation and anion pairs moderated through the hydrogen bonding network.

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