E-viri
Recenzirano
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Monteiro, Bernardo; Outis, Mani; Cruz, Hugo; Leal, João Paulo; Laia, César A T; Pereira, Cláudia C L
Chemical communications (Cambridge, England), 2017, Letnik: 53, Številka: 5Journal Article
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.
