A Hybrid Open-Framework Structure: Synthesis and Structure of an Iron Phosphate Oxalate, [C₁₀N₄H₂₈][Fe₂(HPO₄)₃(C₂O₄)]₂
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)Å, ?=95.1(1)°, V= 1704.4(3)Å3, Z=4, R. =. 0. 0. 3. 6. and R(w)=0.083 [1860 observed reflections with I> 2?(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 T(N) = ~40 K, the highest known in an open-framework material.
A. Choudhury and S. R. Natarajan, "A Hybrid Open-Framework Structure: Synthesis and Structure of an Iron Phosphate Oxalate, [C₁₀N₄H₂₈][Fe₂(HPO₄)₃(C₂O₄)]₂," Journal of Materials Chemistry, vol. 9, no. 12, pp. 3113-3117, Royal Society of Chemistry, Aug 1999.
The definitive version is available at http://dx.doi.org/10.1039/A906663B
Keywords and Phrases
ferric phosphate; oxalic acid; article; chemical structure; reaction analysis; structure analysis; synthesis
International Standard Serial Number (ISSN)
Article - Journal
© 1999 Royal Society of Chemistry, All rights reserved.