A photochromic molecule-based magnet

被引：154
|
作者：
Bénard, S
Rivière, E
Yu, P
Nakatani, K
Delouis, JF
机构：
[1] Univ Paris 11, Chim Inorgan Lab, UMR 8613, F-91405 Orsay, France
[2] Ecole Normale Super, UMR 8531, PPSM, F-94235 Cachan, France
来源：
CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 01期
关键词：
D O I：
10.1021/cm001163p
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：
A molecule-based magnet of formula (SP)MnCr(ox)(3).H2O has been synthesized, where SP+ stands for a new N-methylated pyridospiropyran cation and ox(2-) represents the oxalate anion. The compound orders ferromagnetically at 5.5 K and exhibits crystalline-state photochromism. The main spectrokinetic data of the UV-induced open form of SP+ are strongly modified in (SP)MnCr(ox)(3).H2O as compared to those found in (SP)I. The reversible photoreaction of SP+ does not modulate the critical temperature of the long-range ferromagnetic order in (SP)MnCr(ox)(3).H2O but modifies in a significant way its hysteresis loop.
引用
收藏
页码：159 / 162
页数：4
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