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RESEARCH FRONT
Contents Vol 62(9)

A Three-Dimensional Hydrogen-Bonded Network of Triiron(iii) and Dilanthanum(iii) Pivalate Complexes

Süreyya Isilak A , Valeriu Mereacre A , Yanhua Lan A , Christopher E. Anson A and Annie K. Powell A B
+ Author Affiliations
- Author Affiliations

A Institut für Anorganische Chemie der Universität Karlsruhe, Karlsruhe Institute of Technology, Engesserstr. 15, D-76131 Karlsruhe, Germany.

B Corresponding author. Email: powell@aoc.uni-karlsruhe.de

Australian Journal of Chemistry 62(9) 1102-1107 https://doi.org/10.1071/CH09176
Submitted: 26 March 2009  Accepted: 13 April 2009   Published: 17 September 2009

Abstract

A cationic tri-nuclear iron(iii) complex and an anionic di-nuclear lanthanum(iii) complex assemble to form a three-dimensional hydrogen-bonded supramolecular 3d-4f network [Fe3(μ3-O)(μ-O2CtBu)6(im)3]2[La2(μ-O2CtBu)4(η-O2CtBu)4]·2C2H5OH (im = imidazole).


Acknowledgement

The authors acknowledge with thanks the financial support of the DFG (Center for Functional Nanostructures) and MAGMANet (NMP3-CT-2005–515767).


References


[1]   (a) M. W. Hosseini, Acc. Chem. Res. 2005, 38,  313.
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[14]   The [Fe3O(O2CtBu)6(H2O)3]O2CtBu was prepared by a slight modification of the literature method A. S. Batsanov, Y. T. Struchkov, G. A. Timko, Koord. Khim. 1988, 14, 266: A slurry of [Fe(NO3)3]·9H2O (10.0 g, 24.8 mmol) and HO2CtBu (28.0 g, 274.0 mmol) was heated and maintained at reflux over 2 h until the elimination of NO2 stopped. Upon cooling to 100°C, ethanol (85 mL) and water (15 mL) were added slowly under stirring. Overnight, red-brown hexagonal prisms were formed, filtered off, and recrystallized from a mixture of ethanol (50 mL) and water (10 mL). After 4 days the microcrystalline product was filtered off and washed with benzene and hexane and dried in vacuum leading to solvent-free [Fe3O(O2CtBu)6(H2O)3]O2CtBu. The [La2(O2CtBu)6(HO2CtBu6)] was prepared by literature method: Kiseleva E., Troyanov S., Korenev Yu. Russ. J. Coord. Chem. 2006, 32, 57. doi:10.1134/S1070328406010106

[15]   Sheldrick G. M., SHELXTL 6.12 2003 (Bruker AXS Inc.: Madison, WI).