Structural and physical properties of a new reversible and continuous thermochromic ionic liquid in a wide temperature interval: [BMIM]4[Ni(NCS)6]

Autor: Carlos Fernández, Elena López Lago, Yago Arosa, Luisa Segade, Jacobo Troncoso, Esther Rilo, Bilal S. Algnamat, M. Pilar Vázquez-Tato, Jesús Rodríguez Fernández, Julio A. Seijas, Jesús Antonio Gonzalez, Luis M. Varela, Oscar Cabeza, Raúl de la Fuente, Imanol de Pedro
Rok vydání: 2018
Předmět:
Zdroj: New Journal of Chemistry. 42:15561-15571
ISSN: 1369-9261
1144-0546
Popis: We report spectroscopic, structural, optical and magnetic characterization of tetra(1-butyl-3-methylimidazolium)hexaisothiocyanatonickelate. This paramagnetic ionic liquid exhibits reversible and continuous thermochromism from 298 K up to 400 K and it is solar responsive resisting numerous heating–cooling cycles. Its appearance changes from pale blue to grass green from 298 K to 343 K. Well above these temperatures it becomes brown and gray. Thermochromism is observed both in the solid and liquid phase.
Databáze: OpenAIRE