Details

Autor(en) / Beteiligte

• Monteiro, Bernardo
• Outis, Mani
• Cruz, Hugo
• Leal, João Paulo
• Laia, César A. T
• Pereira, Cláudia C. L

Titel

A thermochromic europium(iii) room temperature ionic liquid with thermally activated anion-cation interactionsElectronic supplementary information (ESI) available: Details of nuclear magnetic resonance, thermophysical analysis, electrochemical characterization, infra-red spectroscopy, ESI-MS characterization, spectrophotometry and elemental analysis. See DOI: 10.1039/c6cc08593h

Erscheinungsjahr

2017-01

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We report the first example of an observable and reversible case of thermochromism due to the interaction of an alkylphosphonium (P 6,6,6,14 ) + with a β-diketonate (1,1,1,2,2,3,3-heptafluoro-7,7-dimethyloctane-4,6-dionate-fod) of an europium( iii ) tetrakis-β-diketonate room temperature ionic liquid. This thermochromism is characterized by the conversion of a light yellow viscous liquid, at room temperature, to a reddish substance close to 80 °C. The reversibility of this optical effect was highlighted by the thermal stability of the Eu( iii ) complex. An observable and reversible case of thermochromism due to an unusual interaction between the countercation and the ligand of an europium( iii ) tetrakis-β-diketonate room temperature ionic liquid is reported.