Journal
CHEMICAL SCIENCE
Volume 4, Issue 6, Pages 2463-2470Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3sc22069a
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Funding
- University of Bordeaux
- CNRS
- ANR [NT09_469563]
- Region Aquitaine
- GIS Advanced Materials in Aquitaine (COMET Project)
- Institut Universitaire de France (IUF)
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The design of molecule-based systems displaying tuneable optical and/or magnetic properties under external stimuli has received a great deal of attention in the past few years. This interest is driven by the potential applications in high-performance molecule-based electronics in the areas of recording media, switches, sensors, and displays. As an example, three-dimensional Fe/Co Prussian blue compounds exhibit a concomitant change in magnetic and optical properties due to a temperature-or light-induced metal-to-metal electron transfer. The foregoing remarkable properties in Prussian blues prompted us to design soluble molecular fragments of these coordination networks through a rational building-block approach in order to mimic their properties on a single molecule. With a judicious choice of the ligands for the iron and cobalt molecular precursors, we prepared a dinuclear cyanido-bridged Fe/Co complex that exhibits an unexpected temperature-dependent spin crossover in the solid state while an intramolecular electron transfer triggered by protonation is observed in solution.
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