Magnetic Bistability and Thermochromism in a Molecular CuII Chain
Inorganic Chemistry2009Vol. 48(4), pp. 1269–1271
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Fatima Setifi, Samia Benmansour, Mathieu Marchivie, G. Dupouy, Smaı̈l Triki, J. Sala‐Pala, J.-Y. Salaun, Carlos J. Gómez‐García, Sébastien Pillet, Claude Lecomte, Eliseo Ruíz
Abstract
An original magnetic bistability and a thermochromic transition are observed in a new Cu(II) molecular chain. Thermal structural studies reveal changes in the Cu(II) coordination sphere, driven by a more pronounced Jahn-Teller effect at low temperature. These distortions provoke a gradual color change. The structural study at 10 K shows a dimerization of the molecular chain, in agreement with the abrupt magnetic transition observed at 30 K.
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