Magnetic bistability and thermochromism in a molecular Cu(II) chain.
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.
Setifi
Fatima
F
UMR CNRS 6521, Université de Bretagne Occidentale, BP 809, 29285 Brest Cedex, France.
Benmansour
Samia
S
Marchivie
Mathieu
M
Dupouy
Gaëlle
G
Triki
Smail
S
Sala-Pala
Jean
J
Salaün
Jean-Yves
JY
Gómez-García
Carlos J
CJ
Pillet
Sébastien
S
Lecomte
Claude
C
Ruiz
Eliseo
E