A Hydrogen-Bonded Cyanide-Bridged [Co2Fe2] Square Complex Exhibiting a Three-Step Spin Transition

被引：86

作者：

Nihei, Masayuki ^{[1
,2
]}

Yanai, Yuta ^{[1
]}

Hsu, I. -Jui ^{[3
]}

Sekine, Yoshihiro ^{[1
]}

Oshio, Hiroki ^{[1
]}

机构：

[1] Univ Tsukuba, Dept Chem, Fac Pure & Appl Sci, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan

[2] PRESTO, JST, Honcho 4-1-8, Kawaguchi, Saitama 3320012, Japan

[3] Natl Taipei Univ Technol, Dept Mol Sci & Engn, Taipei 106008, Taiwan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 02期

关键词：

cobalt; cyanides; hydrogen bonds; mixed-valent compounds; spin transition; METAL CHARGE-TRANSFER; ELECTRON-TRANSFER; MOLECULAR MATERIALS; CROSSOVER; STATE; BISTABILITY; CONVERSION; LIGHT;

D O I：

10.1002/anie.201610268

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Co-crystallization of a cyanide-bridged tetranuclear complex [Co2Fe2] with 4-cyanophenol (CP) gave a hydrogen bonding donor-acceptor system, [Co2Fe2(bpy*)(4)(CN)(6)(tp*)(2)]( PF6)(2).2CP.8BN (1). 1 exhibited a three-step phase transition between HT, IM1, IM2, and LT phases upon temperature variation. Variable temperature magnetic measurements and structural analyses revealed that the three-step spin transition is caused by electron-transfer-coupled spin transitions (ETCSTs) accompanied with alteration of the hydrogen bonding interactions.

引用

页码：591 / 594

页数：4

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