Abstract
In this study, a simple, fast, one-pot approach for the isolation of nanowires (NWs) in coordination chemistry is reported. Nanowires (NWs) of spin-crossover (SCO) materials are extremely rare. Here, an innovative and easy synthetic process was developed to prepare NWs of a switchable polymorph of the known complex trans-[Fe(NCS)2(abpt)2] using a wet-chemistry approach for the first time; abpt is the bidentate chelating ligand 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole. The remarkable smoothness of the high-spin to low-spin transition, monitored through variable-temperature (300-80 K) Raman microscopy, compared with the sharp transition exhibited by the polycrystalline material, demonstrates the effect of the topological properties on the physical phenomena of the system.
Highlights
Wet-chemistry assembly of one-dimensional nanowires: switching characteristics of a known spin-crossover iron(II) complex through Raman spectroscopy†
As stated in the seminal review by Bousseksou, Molnar and co-workers,[26] the new era is a consequence of the development of synthetic routes to produce nanosized SCO nanoparticles (NPs) and nanopatterned thin films, as well as of the use of high-resolution experimental techniques and theoretical approaches that enable the study of spatiotemporal phenomena in cooperative SCO systems
The two routes widely used for the preparation of SCO NPs, i.e. direct fabrication based on batch-mode synthesis,[31] and the templating approach which uses hard inorganic and organic templates,[31,32] suffer from some disadvantages.[31]
Summary
Wet-chemistry assembly of one-dimensional nanowires: switching characteristics of a known spin-crossover iron(II) complex through Raman spectroscopy†.
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