Issue 12, 2003
From the journal:

New Journal of Chemistry

A unique methoxo- and fluoro-bridged triangular trinuclear Cu(ii) species linked in a lattice via mononuclear Cu(ii) units. Synthesis, X-ray structure and magnetism of [Cu4(2-aminopyrimidine)6(μ3-OCH3)2(μ-F)3(F)2](BF4)†

Gerard A. van Albada,a   Olivier Roubeau,a   Ilpo Mutikainen,b   Urho Turpeinenb  and  Jan Reedijk*a  

* Corresponding authors

a Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O.Box 9502, Leiden, Netherlands
E-mail: reedijk@chem.leidenuniv.nl

b Laboratory of Inorganic Chemistry, Department of Chemistry, University of Helsinki, P.O.Box 55, (A.I.Virtasen aukio 1), Helsinki, Finland

Abstract

The synthesis, characterisation, crystal structure and magnetic properties of the new and unique trinuclear polymeric Cu(II) compound 1, [Cu4(ampym)6(μ3-OCH3)2(μ-F)3(F)2](BF4) (in which ampym = 2-aminopyrimidine), is reported. The lattice structure is fascinating and consists of trinuclear Cu(II) units that are connected via an ampym molecule to a fourth Cu(II) anion, resulting in a polymeric structure. The trinuclear unit consists of three Cu(II) atoms with two μ3-bridging methoxo groups and 3 bridging fluorides, which is unprecedented. Magnetic measurements on 1 have been carried out from 5 to 300 K. Due to its unique structural nature, no exact model could be obtained and various simplified fitting models were considered. The best result was obtained when considering the coupling through bridging aminopyridine to be dominant, giving a Cu–Cu interaction constant (J) of −190(40) cm−1.

Graphical abstract: A unique methoxo- and fluoro-bridged triangular trinuclear Cu(ii) species linked in a lattice via mononuclear Cu(ii) units. Synthesis, X-ray structure and magnetism of [Cu4(2-aminopyrimidine)6(μ3-OCH3)2(μ-F)3(F)2](BF4)

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Article information

DOI
https://doi.org/10.1039/B304979E
Article type
Paper
Submitted
02 May 2003
Accepted
18 Jul 2003
First published
10 Sep 2003

New J. Chem., 2003,27, 1693-1697

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A unique methoxo- and fluoro-bridged triangular trinuclear Cu(II) species linked in a lattice via mononuclear Cu(II) units. Synthesis, X-ray structure and magnetism of [Cu4(2-aminopyrimidine)6(μ3-OCH3)2(μ-F)3(F)2](BF4)

G. A. van Albada, O. Roubeau, I. Mutikainen, U. Turpeinen and J. Reedijk, New J. Chem., 2003, 27, 1693 DOI: 10.1039/B304979E

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