All Outputs (50)

Thermolysis of Organofluoroborate Ionic Liquids to NHC-Organofluoroborates (2020)
Journal Article

A range of dialkylimidazolium organotrifluoroborate ionic liquids were prepared by anion metathesis from newly available potassium organotrifluoroborate salts, and their physical properties were characterized by TGA, DSC, and STA. Thermal decompositi... Read More about Thermolysis of Organofluoroborate Ionic Liquids to NHC-Organofluoroborates.

Probing the impact of the N3-substituted alkyl chain on the electronic environment of the cation and the anion for 1,3-dialkylimidazolium ionic liquids (2020)
Journal Article

In this study, X-ray photoelectron spectroscopy is used to probe the impact of the N3-substituted alkyl group on the electronic environment of the cation and the anion by comparing two types of imidazolium cations, 1-alkyl-3-butylimidazolium and 1-al... Read More about Probing the impact of the N3-substituted alkyl chain on the electronic environment of the cation and the anion for 1,3-dialkylimidazolium ionic liquids.

Tuning the Cation-Anion Interactions by Methylation of the Pyridinium Cation: An X-ray Photoelectron Spectroscopy Study of Picolinium Ionic Liquids (2020)
Journal Article

X-ray photoelectron spectroscopy is used to investigate the impact of methylation on the electronic environment of pyridinium cations. Because of the electron-donating effect of the methyl group, there is a significant increase in electron density on... Read More about Tuning the Cation-Anion Interactions by Methylation of the Pyridinium Cation: An X-ray Photoelectron Spectroscopy Study of Picolinium Ionic Liquids.

Thermally-Stable Imidazolium Dicationic Ionic Liquids with Pyridine Functional Groups (2020)
Journal Article

Thermally-stable ionic liquids (ILs) have limited structural possibilities and lack coordinating anions or functional groups. Thermal stability effectively incurs a tunability penalty, limiting ionic liquid function to render them as simple heat-stab... Read More about Thermally-Stable Imidazolium Dicationic Ionic Liquids with Pyridine Functional Groups.

X-ray photoelectron spectroscopy of piperidinium ionic liquids: a comparison to the charge delocalised pyridinium analogues (2020)
Journal Article

In this study, nine piperidinium-based ionic liquids are analysed by X-ray photoelectron spectroscopy. The effect of alkyl substituent length and the nature of the anion on the electronic environment of the cation are investigated. The electronic env... Read More about X-ray photoelectron spectroscopy of piperidinium ionic liquids: a comparison to the charge delocalised pyridinium analogues.

C-F bond activation of a perfluorinated ligand leading to nucleophilic fluorination of an organic electrophile (2020)
Journal Article

We report a fluorine transfer reaction in which fluorine from a perfluorinated ligand undergoes C-F bond activation and transfer to an electrophile, resulting in the formation of a new fluorinated product and dimerization of the mono-defluorinated co... Read More about C-F bond activation of a perfluorinated ligand leading to nucleophilic fluorination of an organic electrophile.

Probing the electronic structure of ether functionalised ionic liquids using X-ray photoelectron spectroscopy (2019)
Journal Article

The charge distribution associated with individual components in functionalised ionic liquids (ILs) can be tuned by careful manipulation of the substituent groups incorporated into the ions. Here we use X-ray photoelectron spectroscopy to investigate... Read More about Probing the electronic structure of ether functionalised ionic liquids using X-ray photoelectron spectroscopy.

In vitro cytotoxicity assessment of monocationic and dicationic pyridinium-based ionic liquids on HeLa, MCF-7, BGM and EA.hy926 cell lines (2019)
Journal Article

Dicationic ionic liquids (ILs) generally possess higher thermal and electrochemical stability than the analogous monocationic ILs, which makes them more suitable for high-temperature applications as solvents for organic reactions, lubricants or stati... Read More about In vitro cytotoxicity assessment of monocationic and dicationic pyridinium-based ionic liquids on HeLa, MCF-7, BGM and EA.hy926 cell lines.

In Situ Sulfidation of Pd/C: A Straightforward Method for Chemoselective Conjugate Reduction by Continuous Hydrogenation (2019)
Journal Article

A method has been developed for the in situ sulfidation of Pd/C under continuous flow. The approach provides a cheap, sustainable, and operationally convenient method for chemoselective conjugate reduction by continuous hydrogenation. High conversio... Read More about In Situ Sulfidation of Pd/C: A Straightforward Method for Chemoselective Conjugate Reduction by Continuous Hydrogenation.

Tuning the Reactivity of TEMPO during Electrocatalytic Alcohol Oxidations in Room-Temperature Ionic Liquids (2019)
Journal Article

2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) is a promising, sustainable, metal-free mediator for oxidation of alcohols. In this contribution, we describe how the selectivity of TEMPO for electrocatalytic alcohol oxidations in room-temperature ionic... Read More about Tuning the Reactivity of TEMPO during Electrocatalytic Alcohol Oxidations in Room-Temperature Ionic Liquids.

On the real catalytically active species for CO2 fixation into cyclic carbonates under near ambient conditions: dissociation equilibrium of [BMIm][Fe(NO)2Cl2] dependant on reaction temperature (2018)
Journal Article

An imidazolium based iron-containing ionic liquid [BMIm][Fe(NO)2Cl2] (BMIm = 1-n-butyl-3-methyl-imidazolium) has been synthesized for the first time and fully characterized employing a wide range of techniques. The iron-based containing ionic liquid... Read More about On the real catalytically active species for CO2 fixation into cyclic carbonates under near ambient conditions: dissociation equilibrium of [BMIm][Fe(NO)2Cl2] dependant on reaction temperature.

Resolving X-Ray Photoelectron Spectra of Ionic Liquids with Difference Spectroscopy (2018)
Journal Article

X-ray photoelectron spectroscopy (XPS) is a powerful element-specific technique to determine the composition and chemical state of all elements in an involatile sample. However, for elements such as carbon, the wide variety of chemical states produce... Read More about Resolving X-Ray Photoelectron Spectra of Ionic Liquids with Difference Spectroscopy.

UN sustainable development goals: How can sustainable/green chemistry contribute? By doing things differently (2018)
Journal Article

Until now, much Green and Sustainable Chemistry has been focused on how chemicals are made. Here we suggest that, if chemistry is to contribute effectively to achieving the SDGs, we need to change the way that things are done at both ends of the chem... Read More about UN sustainable development goals: How can sustainable/green chemistry contribute? By doing things differently.

Tuneable ionic control of polymeric films for inkjet based 3D printing (2018)
Journal Article

Inkjet printing is a powerful additive manufacturing (AM) technique to generate advanced and complex geometries. However, requirements of low viscosity and surface tension are limiting the range of functional inks available, thus hindering the develo... Read More about Tuneable ionic control of polymeric films for inkjet based 3D printing.

Effect of dicationic ionic liquids on lyotropic liquid crystals formed by a binary system composed of Triton-X 100 and water (2018)
Journal Article

In this work, binary mixtures of a non-ionic surfactant (Triton X-100) and water were studied with concentrations of 30%wt H2O, showing, lamellar mesophase at temperatures below 10oC. Different dicationic ionic liquids were used for doping these meso... Read More about Effect of dicationic ionic liquids on lyotropic liquid crystals formed by a binary system composed of Triton-X 100 and water.

The impact of sulfur functionalisation on nitrogen-based ionic liquid cations (2018)
Journal Article

It has been demonstrated that bonding and interactions within ionic liquids (ILs) can be elegantly tuned by manipulation of structure and the introduction of functional groups. Here we use XPS to investigate the impact of sulfur containing substituen... Read More about The impact of sulfur functionalisation on nitrogen-based ionic liquid cations.

Ecotoxicity assessment of dicationic versus monocationic ionic liquids as a more environmentally friendly alternative (2017)
Journal Article

One of the reasons why ionic liquids have received growing interest from researchers is their environmentally interesting characteristics, such as their negligible vapour pressure and their good chemical and thermal properties. In particular, dicatio... Read More about Ecotoxicity assessment of dicationic versus monocationic ionic liquids as a more environmentally friendly alternative.

Probing the electronic environment of binary and ternary ionic liquid mixtures by x-ray photoelectron spectroscopy (2017)
Journal Article

X-ray photoelectron spectroscopy is used to probe the electronic environment of cations and anions for three binary and one ternary chlorostannate ionic liquid mixtures. The impact of the weighting of Cl on the electronic environment of the cation-b... Read More about Probing the electronic environment of binary and ternary ionic liquid mixtures by x-ray photoelectron spectroscopy.

Tuning the electronic environment of the anion by using binary ionic liquid mixtures (2017)
Journal Article

The electronic environment of the anion is tuned by using binary ionic liquid mixtures employing a com- mon anion and two cations with large difference in acidity. X-ray photoelectron spectroscopy is used to monitor the change of the electronic envir... Read More about Tuning the electronic environment of the anion by using binary ionic liquid mixtures.

X-ray photoelectron spectroscopy of trihalide ionic liquids: comparison to halide-based analogues, anion basicity and beam damage (2017)
Journal Article

X-ray photoelectron spectroscopy is used to investigate two 1-octyl-3-methylimidazolium trihalide ionic liquids, with anions including triiodide and iododibromide. The electronic environment of each element present in ionic liquids studied herein is... Read More about X-ray photoelectron spectroscopy of trihalide ionic liquids: comparison to halide-based analogues, anion basicity and beam damage.