Non-classical Fe-II spin-crossover behaviour leading to an unprecedented extremely large apparent thermal hysteresis of 270 K: Application for displays

被引:142
作者
Garcia, Y [1 ]
vanKoningsbruggen, PJ [1 ]
Codjovi, E [1 ]
Lapouyade, R [1 ]
Kahn, O [1 ]
Rabardel, L [1 ]
机构
[1] INST CHIM MAT CONDENSEE BORDEAUX, LAB SCI MOL, CNRS, UPR 9048, F-33608 PESSAC, FRANCE
关键词
D O I
10.1039/a701242j
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
[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.
引用
收藏
页码:857 / 858
页数:2
相关论文
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