UMR CNRS 6521, Université de Bretagne Occidentale, BP 809, 29285 Brest Cedex, France.
Inorg Chem. 2009 Feb 16;48(4):1269-71. doi: 10.1021/ic802292s.
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.
在一种新型 Cu(II) 分子链中观察到了原始磁双稳态和热致变色转变。热结构研究表明,低温下 Jahn-Teller 效应更为明显,导致 Cu(II) 配位环境发生变化。这些变形引起了颜色的逐渐变化。在 10 K 下的结构研究表明,分子链发生了二聚化,这与在 30 K 观察到的急剧磁转变一致。