Optically switchable behaviour of a dioxolene adduct of a cobalt-macrocycle complex

被引：38

作者：

Carbonera, C

Dei, A

Sangregorio, C

Létard, JF

机构：

[1] Univ Florence, Dipartimento Chim, INSTM Res Unit, I-50019 Sesto Fiorentino, Firenze, Italy

[2] Univ Florence, LAMM, I-50019 Sesto Fiorentino, Firenze, Italy

[3] Univ Bordeaux 1, Inst Chim Mat Condensee Bordeaux, Grp Sci Mol, CNRS,UPR 9048, F-33608 Pessac, France

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 396卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2004.08.026

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：

Reflectivity and magnetic measurements show that Co(CTH)(Phendiox)]PF6 . H2O (CTH = DL-5,7,7,12,14,14-9,10-hexamethyl-1,4,8,11-tetraazacyclotetradecane and Phendiox = semiquinonato or catecholato forms of 9,10-dioxophenantherene) undergoes valence tautomeric interconversion cobalt(III)-catecholato to cobalt(II)-semiquinonato upon light irradiation. This compound is the simplest cobalt-o-dioxolene complex undergoing this transition. The critical temperatures of the photoinduced transition and of the entropy driven transition seem to be related by the same empirical relationships observed for iron(II) spin crossover compounds. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：198 / 201

页数：4

共 29 条

[1] CONTROLLING VALENCE TAUTOMERISM OF COBALT COMPLEXES CONTAINING THE BENZOSEMIQUINONE ANION AS LIGAND [J].