Investigating the effect of ligand and cation on the properties of metal fluorinated acetylacetonate based magnetic ionic liquids

Abstract

The effect of chemical structure on various physiochemical properties including thermal stability, solvent miscibility, magnetic susceptibility and viscosity is studied for acetylacetone based magnetic ionic liquids.

An overview of magnetic ionic liquids: From synthetic strategies to applications in microextraction techniques

“…Imidazoliumbased MILs had an increase of magnetic susceptibility with the elongation of alkyl chain of the imidazole moiety [37]. Moreover, the effect of the anion has also been demonstrated using SQUID [46] -] MIL under different pressures and temperatures were obtained by Garcia-Saiz et al [69]. In this comprehensive study, the authors demonstrated that [EMIM + ][FeCl 4 -] exhibited pressure-induced transition from antiferromagnetic to ferrimagnetic threedimensional ordering.…”

“…Afterward, the ammonium-metal hfacac salt was added to 1 mmol of the purified phosphonium chloride salt and dissolved in methanol (at room temperature, for 12 h). Finally, after some washing steps with diethyl ether and solvent evaporation, the ([P 6,6,6,14 + ][Mn(II)(hfacac) [46]. In this study, the compounds were synthesized, characterized and some of their physicochemical properties were examined.…”

“…Recently, some physicochemical properties of 24 MILs containing acetylacetone-based ligands coordinated with Ni(II), Co(II), and Mn(II) have been investigated [46]. In this study, the [P 6,6,6,14 + ] and [C 14 MIM + ] cations were examined.…”

“…The effect of cation and anion on the thermal properties of acetylacetonate-based MILs was investigated [46]. The [C 14 MIM + ][Ni(T h tfacac) 3 -] and [C 14 MIM + ][Ni(N p tfacac) 3 -] MILs were solid at room temperature and presented melting points at 69 and 88 • C, respectively.…”

Structure and physicochemical properties of chelate-based ionic liquids

“…1 引言 近年来离子液体(ionic liquids，简称 ILs)的研 究得到了很大的发展，不同种类的离子液体被成 功应用于生物医药 [1] 、 催化 [2][3][4][5] 、 气体吸收 [6][7] 等领域。 在离子液体的发展中，衍生出一类含有金属配 合物的离子液体，称为配位型离子液体 (coordination-based ionic liquids) [8][9][10][11][12][13][14][15][16] ，其中配位数 大于 2 的称为螯合型离子液体(chelate-based ionic liquids, 简称 ChILs)，此类离子液体因含有多齿螯 合结构，赋予该类离子液体颜色、磁性和催化反应 等特性，具有广阔的应用前景 [17][18][19][20][21][22][23][24][25][26] 。张鹏飞等 [27] 应 用此类螯合型离子液体到环己烯的氧化中，发现 与相应的普通金属盐相比，作为催化剂和溶剂， 此类螯合型离子液体有着优异的催化性能且能够 被循环利用。王从敏等 [28] [34][35] [51][52][53] 。其中，…”