SPIN-CROSSOVER IN A CATENANE SUPRAMOLECULAR SYSTEM

被引：593

作者：

REAL, JA

ANDRES, E

MUNOZ, MC

JULVE, M

GRANIER, T

BOUSSEKSOU, A

VARRET, F

机构：

[1] UNIV POLITECN VALENCIA, DEPT FIS APLICADA, E-46071 VALENCIA, SPAIN

[2] UNIV BORDEAUX 1, CRISTALLOG & PHYS CRISTALLINE LAB, CNRS, URA 144, F-33405 TALENCE, FRANCE

[3] LAB CHIM COORDINAT, F-31077 TALENCE, FRANCE

[4] UNIV VERSAILLES, OPT & MAGNETISME LAB, CNRS, EP J0035, F-78035 VERSAILLES, FRANCE

来源：

SCIENCE | 1995年 / 268卷 / 5208期

关键词：

D O I：

10.1126/science.268.5208.265

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The compound [Fe(tvp)(2)(NCS)(2)]. CH3OH, where tvp is 1,2-di-(4-pyridyl)-ethylene, has been synthesized and characterized by x-ray single-crystal diffraction. It consists of two perpendicular, two-dimensional networks organized in parallel stacks of sheets made up of edge-shared [Fe(II)](4) rhombuses. The fully interlocked networks define large square channels in the [001] direction. Variable-temperature magnetic susceptibility measurements and Mossbauer studies reveal that this compound shows low-spin to high-spin crossover behavior in the temperature range from 100 to 250 kelvin. The combined structural and magnetic characterization of this kind of compound is fundamental for the interpretation of the mechanism leading to the spin crossover, which is important in the development of electronic devices such as molecular switches.

引用

页码：265 / 267

页数：3