Condensed phase behaviour of ionic liquid-benzene mixtures: congruent melting of a [emim][NTf2].C6H6 inclusion crystal.
The solid-liquid phase diagram of the (1-ethyl-3-methylimidazolium bis{(trifluoromethyl) sulfonyl} amide + benzene) system was determined and allowed us to identify and characterize an equimolar inclusion compound, [emim][NTf2].C6H6, with a congruent melting temperature: this type of behaviour, reported here for the first time, together with the X-ray structure of the inclusion compound lays emphasis upon the interactions that are responsible for the existence of liquid clathrates at higher benzene concentrations.
Lachwa
Joanna
J
Instituto de Tecnologia Química e Biológica, UNL, Av. República, Ap. 127, 2780-901, Oeiras, Portugal.
Bento
Isabel
I
Duarte
M Teresa
MT
Lopes
José N Canongia
JN
Rebelo
Luís P N
LP