A photochromic molecule-based magnet

被引：156

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

页码：159 / 162

页数：4

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