Theoretical and experimental comparative study of nonlinear properties of imidazolium cation based ionic liquids

Ionic Liquid assisted efficient synthesis of some 2-aminobenzenethiols has been reported using three different Ionic Liquids (ILs) namely methylimidazolium tetrafluoroborate [MIM]+[BF4]−, methylimidazolium chloride [MIM]+[Cl]− and methylimidazolium nitrate [MIM]+[NO3]−. A comparative study has been carried out for the synthesis of target molecules in the presence and absence of IL, leading to conclusion that maximum yield has been observed with [MIM]+[BF4]−.

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Aggregation Behaviours of Surface-Active Ionic Liquids 1-Alkyl-3-methylimidazolium Bis(2-ethylhexyl)sulfosuccinate

Australian Journal of Chemistry ◽

10.1071/ch16122 ◽

2016 ◽

Vol 69 (11) ◽

pp. 1254 ◽

Cited By ~ 5

Author(s):

Jiequn Wu ◽

Tianxiang Yin ◽

Shaoxiong Shi ◽

Weiguo Shen

Keyword(s):

Ionic Liquids ◽

Self Assembly ◽

Alkyl Chain ◽

Systematic Investigation ◽

Bulk Solution ◽

Free Energies ◽

Imidazolium Cation ◽

Structure Transition ◽

Surface Active ◽

Counter Ion Binding

The systematic investigation of the aggregation behaviours of newly synthesised surface-active ionic liquids 1-alkyl-3-methylimidazolium bis(2-ethylhexyl)sulfosuccinate ([Cnmim][AOT], n = 2, 3, 5, 6, 7) by various techniques is reported. The critical aggregation concentrations (CACs) and the standard Gibbs free energies of aggregation () were determined from measurements on conductivity, fluorescence, and surface tension, which suggested a stronger self-assembly ability in the bulk solution for [Cnmim][AOT] surfactants with longer alkyl chain cations. An interesting structure transition driven by the penetration of the imidazolium cation into the aggregate when n > 4 was found by analysis of the variations of the values of CAC, , the degree of counter ion binding (β), and the micropolarity (I1/I3) immediately after the CAC with changing alkyl chain length of the imidazolium cation, which was further confirmed by 1H NMR measurements.

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Studies on the Antibacterial Influence of Two Ionic Liquids and their Corrosion Inhibition Performance

Applied Sciences ◽

10.3390/app10041444 ◽

2020 ◽

Vol 10 (4) ◽

pp. 1444 ◽

Cited By ~ 3

Author(s):

Mohamed F. Shehata ◽

Ashraf M. El-Shamy ◽

Khaled M. Zohdy ◽

El-Sayed M. Sherif ◽

Sherif Zein El Abedin

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Synergistic Effect ◽

Corrosion Inhibition ◽

Hydroxyl Group ◽

Side Chain ◽

Imidazolium Cation ◽

Corrosion Effect ◽

Inhibition Performance

In this paper the anti-bacterial and the anti-corrosion effect of two different ionic liquids, namely 1-(2-hydroxyethyl)-3-methylimidazolinium chloride ([OH-EMIm]Cl) and 1-ethyl-3-methyleimidazolinium chloride ([EMIm]Cl) was demonstrated. The results revealed that the corrosion inhibition influence of the ionic liquid [OH-EMIm]Cl is higher than that of the ionic liquid [EMIm]Cl. Furthermore, the ionic liquid [OH-EMIm]Cl showed better biocidal influence compared with the ionic liquid [EMIm]Cl. This indicates the synergistic effect due to the incorporation of the hydroxyl group into the side chain of the imidazolium cation leading to enhanced antibacterial and anticorrosion effect.

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