Abstract
A magnetic ionic liquid comprising 1-ethyl-3 methylimidazolium (Emim) cations and tetraclhoroferrate(III) (FeCl4) anions and its deuterated phase were synthetized and characterized magnetically. In both materials, the low temperature dependence of the magnetic susceptibility presents a maximum (around 4 K) related to an antiferromagnetic ordering, but the ordering temperatures are slightly shifted and the curves display different shapes. In addition, the magnetization of the deuterated phase tends to saturate at higher values than that corresponding to the non-deuterated analogue. A comparison of the neutron diffraction patterns above and below the magnetic transition clearly shows that the crystal and magnetic structures of these materials are different. Therefore, the present findings clearly prove that the magnetic exchange interactions that induce three-dimensional magnetic ordering are modified after the deuteration process.
Highlights
Magnetic ionic liquids (MILs) have received considerable attention among ionic liquids (ILs)
The change of external conditions, like pressure, has a strong influence in the magnetic coupling of ethyl-3 methylimidazolium (Emim)[FeCl4], varying from antiferromagnetic (AF) to ferrimagnetic ordering [12]. In this contribution we focus on ascertaining the nature of the magnetic structure of this last MIL, using neutron diffraction experiments
We have identified via magnetic and powder diffraction studies that these MILs change their magnetic behaviour with the deuteration process
Summary
Magnetic ionic liquids (MILs) have received considerable attention among ionic liquids (ILs). The change of external conditions, like pressure, has a strong influence in the magnetic coupling of Emim[FeCl4], varying from antiferromagnetic (AF) to ferrimagnetic ordering [12]. The presence of H atoms in the cation part (H= 11) of Emim[FeCl4] predicted low statistics in the neutron diffraction pattern.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
