Issue 47, 2015
From the journal:

Dalton Transactions

Iron(iii) carboxylate/aminoalcohol coordination clusters with propeller-shaped Fe8 cores: approaching reasonable exchange energies†

Olga Botezat,ab   Jan van Leusen,b   Victor Ch. Kravtsov,a   Arkady Ellern,c   Paul Kögerler*b  and  Svetlana G. Baca*a  

* Corresponding authors

a Institute of Applied Physics, Academy of Science of Moldova, MD2028 Chisinau, R. Moldova
E-mail: sbaca_md@yahoo.com
Fax: +373-22-738154
Tel: +373-22-725887

b Institute of Inorganic Chemistry, RWTH Aachen University, 52074 Aachen, Germany
E-mail: paul.koegerler@ac.rwth-aachen.de
Fax: +49-241-80-92642
Tel: +49-241-80-93642

c Department of Chemistry, Iowa State University, Ames, IA 50011, USA

Abstract

A series of new octanuclear propeller-like aminoalcohol-supported Fe(III) oxocarboxylate coordination clusters, [Fe8O3(O2CCHMe2)9(tea)(teaH)3]·MeCN·2(H2O) (1), [Fe8O3(O2CCHMe2)6(N3)3(tea)(teaH)3] (2), [Fe8O3(O2CCMe3)6(N3)3(tea)(teaH)3]·0.5(EtOH) (3), and [Fe8O3(O2CCHMe2)6(N3)3(mdea)3(MeO)3] (4) (where teaH3 = triethanolamine; mdeaH2 = N-methyldiethanolamine) has been isolated and magnetochemically analyzed combining the programs wxJFinder and CONDON in an approach to avoid overparameterization issues that are common to larger spin polytopes. Dominant antiferromagnetic exchange interactions exist in all clusters along the edges of the propellers, while moderate ferromagnetic interactions are found along the propeller axes in their {Fe8O3} metallic cores.

Graphical abstract: Iron(iii) carboxylate/aminoalcohol coordination clusters with propeller-shaped Fe8 cores: approaching reasonable exchange energies

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Article information

DOI
https://doi.org/10.1039/C5DT03024B
Article type
Paper
Submitted
06 Aug 2015
Accepted
30 Oct 2015
First published
04 Nov 2015
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2015,44, 20753-20762

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Iron(III) carboxylate/aminoalcohol coordination clusters with propeller-shaped Fe8 cores: approaching reasonable exchange energies

O. Botezat, J. van Leusen, V. Ch. Kravtsov, A. Ellern, P. Kögerler and S. G. Baca, Dalton Trans., 2015, 44, 20753 DOI: 10.1039/C5DT03024B

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