TY - JOUR
T1 - A thermochromic europium(iii) room temperature ionic liquid with thermally activated anion-cation interactions
AU - Monteiro, Bernardo
AU - Outis, Mani
AU - Cruz, Hugo
AU - Leal, João Paulo
AU - Laia, César A T
AU - Pereira, Cláudia C L
N1 - Sem PDF.
Fundacao para a Ciencia e a Tecnologia (SFRH/BPD/102705/2014; SFRH/BPD/108959/2015; SFRH/BPD/47087/2008; RECI/BBB-BQB/0230/2012)
FCT (UID/Multi/04349/2013)
PY - 2017/1/16
Y1 - 2017/1/16
N2 - We report the first example of an observable and reversible case of thermochromism due to the interaction of an alkylphosphonium (P6,6,6,14)+ 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.
AB - We report the first example of an observable and reversible case of thermochromism due to the interaction of an alkylphosphonium (P6,6,6,14)+ 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.
UR - http://www.scopus.com/inward/record.url?scp=85009219509&partnerID=8YFLogxK
U2 - 10.1039/C6CC08593H
DO - 10.1039/C6CC08593H
M3 - Article
C2 - 27917429
AN - SCOPUS:85009219509
VL - 53
SP - 850
EP - 853
JO - Chemical Communications
JF - Chemical Communications
SN - 1359-7345
IS - 5
ER -