A. Choudhury, S. Natarajan
1999
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0
Influential Citations
20
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Journal
Journal of Materials Chemistry
Abstract
A new inorganic–organic hybrid structure has been synthesized hydrothermally in the iron phosphate oxalate family using 1,4-bis(3-aminopropyl)piperazine as the structure-directing agent. Crystal data for I, [C10N4H28][Fe2(HPO4)3(C2O4)]2: M = 589.8, monoclinic, space group = P21/n (no. 14), a = 10.829(1), b = 12.747(1), c = 12.397(1) A, β = 95.1(1)°, V = 1704.4(3) A3, Z = 4, R = 0.036 and Rw = 0.083 [1860 observed reflections with I > 2σ(I)]. The structure comprises a network of FeO6 octahedra and PO4 tetrahedra forming inorganic layers which are bridged by the oxalate units forming 8-membered channels in which the amine molecule resides. Magnetic susceptibility studies indicate an antiferromagnetic behavior with TN = ≈40 K, the highest known in an open-framework material.