Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 9, Pages 1386-1391Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.200700940
Keywords
antiferromagnetism; hydrothermal synthesis; iron phosphite; open frameworks
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A new open-framework iron phosphite, [C4N2H12][Fe-4(H2O)(3)-(HPO3)(7)]center dot(H2O)(x) x = 0.6 (1), has been prepared by the hydrothermal reaction between FeCl(3 center dot)6H(2)O, H3PO3, and piperazine. The three-dimensional structure is comprised of a network of FeO6, FeO5(H2O), and HPO3 polyhedral units connected through their vertices. The structure has layers formed by the well-known 4.6.12-net connectivity and is stacked in an AAAA... sequence, penetrated by the one-dimensional pillar units, forming a three-dimensional pillared-layer structure. This connectivity gives rise to two independent 12-ring channel systems. Magnetic studies indicate antiferromagnetic behavior at high temperatures, with a small ferromagnetic polarization at low temperatures. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
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