Variable-temperature magnetic susceptibility measurements performed on two hexairon(III) clusters containing a μ6-oxo bridge show that this unusual bridging mode leads to weak antiferromagnetic exchange-coupling interactions between the metal centers, with J(trans) and J(cis) values of 19(2) and 9(1) cm-1, respectively. The result is relevant to the search for magneto-structural correlations in oxo-bridged polyiron aggregates.
Magnetic Exchange Coupling in the FeIII6(μ6-O) Core: A Hint to the Magnetic Properties of Higher-Nuclearity Spin Clusters / Cornia, Andrea; D., Gatteschi; K., Hegetschweiler. - In: INORGANIC CHEMISTRY. - ISSN 0020-1669. - STAMPA. - 33:(1994), pp. 1559-1561.
Magnetic Exchange Coupling in the FeIII6(μ6-O) Core: A Hint to the Magnetic Properties of Higher-Nuclearity Spin Clusters
CORNIA, Andrea;
1994
Abstract
Variable-temperature magnetic susceptibility measurements performed on two hexairon(III) clusters containing a μ6-oxo bridge show that this unusual bridging mode leads to weak antiferromagnetic exchange-coupling interactions between the metal centers, with J(trans) and J(cis) values of 19(2) and 9(1) cm-1, respectively. The result is relevant to the search for magneto-structural correlations in oxo-bridged polyiron aggregates.
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