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 interactions

Ist Teil von

• Chemical communications (Cambridge, England), 2017, Vol.53 (5), p.850-853

Ort / Verlag

England

Erscheinungsjahr

2017

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 ) 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.