EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021

Following the discovery of carbon nanotubes by Iijima, there has been great interest in the synthesis and characterization of other one-dimensional (1D) structures, which include nanowires, nanorods and nanobelts constituting promising building blocks for many existing and emerging applications. Different synthetic strategies have been proposed while scaffold assisted bottom-up growth methodologies dominate in literature.
Materials exhibiting the spin crossover (SCO) phenomenon are motivating materials for both scientific research and applications. Their study has been extensive for decades; however, it is only recently that synthetic routes for synthesizing structures with controlled size in the nanometer scale were put under investigation. Here we report the synthesis of the mononuclear [Fe(abpt)2(CNS)2] nanowire system based entirely on wet chemistry. This extremely easy, convenient, and low-cost wet chemistry synthetic approach for the development of nanowires provides with an important advantage for potential future application. It is also noticeable that the potential of such a synthetic methodology towards the development of nanowires in molecular SCO materials could be possibly implemented to other systems/coordination complexes as well; the suitability/effectiveness of the synthetic route was further examined and supported for other SCO systems. The remarkable smooth of the high spin-low spin transition, compared to the sharp one exhibited by the corresponding material in crystal form, demonstrates the effect of the topological properties on the physical phenomena of the system; the size could be considered a critical factor for tuning the SCO phenomenon in the various applications.

Acknowledgments
This work was supported by the project "National Infrastructure in Nanotechnology, Advanced Materials and Micro-/ Nanoelectronics" (MIS 5002772) which is implemented under the Action “Reinforcement of the Research and Innovation Infrastructure”, funded by the Operational Programme "Competitiveness, Entrepreneurship and Innovation" (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund).