Preserving the spin transition properties of iron-triazole coordination polymers within silica-based nanocomposites. Issue 44 (27th October 2017)

• Record Type: Journal Article
• Authors: Voisin, H.; Aimé, C.; Vallée, A.; Bleuzen, A.; Schmutz, M.; Mosser, G.; Coradin, T.; Roux, C.
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 44(2017)
• Page Start: 11542
• Page End: 11550
• Publication Date: 2017-10-27
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7tc04194b
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Composites integrating one dimensional iron(ii ) polymers and silica particles preserve the spin-crossover properties of polymer when the interface polymer-silica is controlled. Abstract : One dimensional iron(ii ) coordination polymers formed from 1, 2, 4-triazole bridging ligands are a unique class of spin-crossover materials (SCO). The integration of those coordination polymers into devices for practical applications remains a major challenge. Using a nanocomposite approach based on the control of coordination polymer interactions with chemically engineered silica particles, we show that we can achieve in situ gelation, while preserving the SCO properties of the solid state. Tuning the interface between the two phases of a composite provides a unique way to synergistically adjust the material's structure and the cooperativity associated with its transition properties. The strategy described here should allow for bridging the gap between soft and crystalline functional inorganic materials.