Chakrabarti, Sandip ; Green, Mark A. ; Natarajan, Srinivasan (2002) Hydrothermal synthesis of the first iron arsenate-oxalate [C4N2H12]2[Fe4(HAsO4 6(C2O4)2],possessing open architecture Solid State Sciences, 4 (3). pp. 405-412. ISSN 1293-2558
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S12932...
Related URL: http://dx.doi.org/10.1016/S1293-2558(02)01268-2
Abstract
The hydrothermal synthesis and structural characterization of the first iron arsenate-oxalate [C4N2H12]2[Fe4(HAsO4 )6(C2O4)2], I, with open-framework structure has been described. Crystal data for I: triclinic, space group P(-1) (no. 2), a=11.1066(2), b=12.9842(1), c=13.4294(1) Å, a=111.345(1), β=93.688(1), γ=93.879(1)°, V=1706.33(4) Å3, Z=2, ρcalc=2.755 g cm-3, μ(MoKα)=7.567 mm-1, R1=0.0441 and wR2=0.113 for 3861 reflections with I>2σ(I). The framework structure of I consists of neutral inorganic sheets formed by the linkages between strictly alternating FeO6 octahedra and AsO4 tetrahedra cross-linked by the oxalate units forming an anionic three-dimensional network with channels. The charge compensating doubly protonated piperazine molecules occupy these channels and interact with the framework through strong hydrogen bonds. The compound shows strong anti-ferromagnetic interactions with TN ~ 40 K.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 27708 |
| Deposited On: | 11 Dec 2010 08:24 |
| Last Modified: | 04 Mar 2011 10:17 |
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