TY - JOUR
T1 - Non-classical Fe(II) spin-crossover behaviour leading to an unprecedented extremely large apparent thermal hysteresis of 270 K
T2 - application for displays
AU - Garcia, Yann
AU - Van Koningsbruggen, Petra J.
AU - Codjovi, Epiphane
AU - Lapouyade, Rene
AU - Kahn, Olivier
AU - Rabardel, Louis
PY - 1997
Y1 - 1997
N2 - [Fe(hyetrz) 3 ](anion) 2 ·3H 2 O [hyetrz=4-(2′-hydroxyethyl)-1,2,4-triazole, anion=3-nitrophenylsulfonate] is a novel linear polynuclear Fe II spin-crossover compound. The low-spin to high-spin transition accompanied by a pronounced thermochromic effect occurs at 370 K in a very abrupt way. Just before this temperature, the three non-coordinated water molecules are removed. The dehydrated high-spin form remains stable down to ca. 100 K, where it transforms into a new low-spin form, implying that this material shows an apparent thermal hysteresis width of 270 K. Applications of this material are discussed.
AB - [Fe(hyetrz) 3 ](anion) 2 ·3H 2 O [hyetrz=4-(2′-hydroxyethyl)-1,2,4-triazole, anion=3-nitrophenylsulfonate] is a novel linear polynuclear Fe II spin-crossover compound. The low-spin to high-spin transition accompanied by a pronounced thermochromic effect occurs at 370 K in a very abrupt way. Just before this temperature, the three non-coordinated water molecules are removed. The dehydrated high-spin form remains stable down to ca. 100 K, where it transforms into a new low-spin form, implying that this material shows an apparent thermal hysteresis width of 270 K. Applications of this material are discussed.
UR - http://pubs.rsc.org/en/content/articlelanding/1997/JM/a701242j#!divAbstract
U2 - 10.1039/A701242J
DO - 10.1039/A701242J
M3 - Article
SN - 1364-5501
VL - 7
SP - 857
EP - 858
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
ER -