A Hybrid Open-Framework Structure: Synthesis and Structure of an Iron Phosphate Oxalate, [C₁₀N₄H₂₈][Fe₂(HPO₄)₃(C₂O₄)]₂

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)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.

Department(s)

Chemistry

Keywords and Phrases

ferric phosphate; oxalic acid; article; chemical structure; reaction analysis; structure analysis; synthesis

International Standard Serial Number (ISSN)

0959-9428

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1999 Royal Society of Chemistry, All rights reserved.

Publication Date

01 Aug 1999

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