A5073922986- Ionic liquids properties and applications
- Phase Equilibria and Thermodynamics
- Crystallization and Solubility Studies
- Electrochemical Analysis and Applications
- X-ray Diffraction in Crystallography
- Carbon dioxide utilization in catalysis
- Minerals Flotation and Separation Techniques
- Carbon Dioxide Capture Technologies
- Surfactants and Colloidal Systems
- Catalytic Cross-Coupling Reactions
- Advanced Chemical Sensor Technologies
- Catalysis and Oxidation Reactions
- Inorganic and Organometallic Chemistry
- Atmospheric chemistry and aerosols
- Extraction and Separation Processes
- Mesoporous Materials and Catalysis
- Crystallography and molecular interactions
- Solid-state spectroscopy and crystallography
- CO2 Reduction Techniques and Catalysts
- Polyoxometalates: Synthesis and Applications
- Chemical Synthesis and Analysis
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Synthetic Organic Chemistry Methods
- Analytical chemistry methods development
- Click Chemistry and Applications
University of Latvia
2013-2024
Imperial College London
2015-2021
Transnational Press London
2017
Kensington Health
2015
The thermodynamic properties of ionic liquids (ILs) bearing alkylsilane and alkylsiloxane chains, as well their carbon-based analogs, were investigated. Effects such the replacement carbon atoms by silicon atoms, introduction a siloxane linkage, length chain explored. Differential scanning calorimetry (DSC) thermogravimetric analysis (TGA) used to study thermal phase behavior (glass transition temperature, melting point, enthalpy entropy fusion, stability). Heat capacity was obtained...
Evidence is presented for the spontaneous formation of N-heterocyclic carbenes in ionic liquids based on 1,3-dialkyl substituted imidazolium cations.
The hydrogen bond basicity<italic>β</italic>of ionic liquids, as demonstrated by the NMR studies and Kamlet–Taft linear solvation energy relationship, was confirmed to be dominant solvent descriptor determining rate of Knoevenagel condensation.
Eleven pure alkylphosphonium carboxylate ionic liquids (ILs) were synthesised following a reliable and accessible route. Tetrabutylphosphonium tetradecyltrihexylphosphonium cations associated to variety of [R-COO]- anions with R varying from shorter longer linear alkyl chains; smaller bulkier branched cyclic saturated aliphatic aromatic moieties; one heterocyclic ring containing nitrogen. A combined experimental molecular simulation study allowed the full characterization physico-chemical...
Solvatochromic transition metal (TM)-complexes with weakly associating counter-anions are often used to evaluate traditional neutral solvent and anion coordination ability. However, when employed in ionic liquids (IL) many of the common assumptions made no longer reliable. This study investigates coordinating ability IL anions solvents within employing a range solvatochromic copper complexes. Complexes form [Cu(acac)(tmen)][X] (acac = acetylacetonate, tmen tetramethylethylenediamine) where...
Intermolecular interactions in ionic liquids are mainly governed by Coulombic forces. Attraction between cations has been previously observed and was attributed to dispersion nonpolar moieties, hydrogen bonding, or π stacking. In this study, we present the intriguing behavior of tetracyanoborate anions that, unlike their dicyanamide tricyanomethanide counterparts, form dimers both solid liquid phases. A joint simulation experimental study uncovers origin such anion–anion attraction:...
Structurally diverse aromatic and aliphatic ionic liquids have been prepared via anion metathesis utilizing alkylammonium chlorides trimethyl phosphate. Excellent oxygen-containing functional-group tolerance in preparation of potentially greener dimethyl phosphate has demonstrated. For the first time, this method employed synthesis dicationic imidazolium-based possessing a counterion, providing simple, direct route towards structurally novel products high purity.
The branching of ionic liquid cation sidechains utilizing silicon as the backbone was explored and it found that this structural feature leads to fluids with remarkably low density viscosity.
We have prepared novel divalent ionic liquids based on the bis(trifluoromethylsulfonyl)imide anion where two charged imidazolium groups in cations are either directly bound to each other or linked by a single atom.
In this study, we discovered that both the structure of ionic liquid and catalyst exert a significant influence on copper( i )-catalyzed azide–alkyne cycloaddition reaction rate.
Propanephosphonic acid anhydride (T3P) has been proposed as a novel reagent for the preparation of maleic isoimides from corresponding monoamides. A series substituted aromatic and aliphatic have prepared in good yields. The main advantage this synthetic method is use environmentally benign, cost-efficient reagents solvents, which are also safer to handle than ones employed previously.
Particulate matter of organic combustibles burning consists various hydrocarbons and radicals, which may cause harmful impact to human health. In this study solid particulate were collected on the filters from in a chamber atmosphere city Riga by dichotomous impactor. FTIR spectra obtained before after samples' treatment. Absorptions associated with aliphatic aromatic alcohol functional groups observed spectra. Free radicals detected electron paramagnetic resonance (EPR).
Intermolecular interactions in ionic liquids are mainly governed by Coulomb forces. Attraction between cations has been previously observed and was attributed to dispersion non-polar moieties, hydrogen bonding, or π-stacking. In this study, we present the intriguing behaviour of tetracyanoborate anions that, unlike their dicyanamide tricyanomethanide counterparts, form dimers both solid liquid phases. A joint simulation experimental study uncovers origin such anion-anion attraction:...
We have explored the branching of ionic liquid cation sidechains utilizing silicon as backbone and found this structural feature to lead fluids remarkably low density viscosity. The relatively densities suggest a large free volume in these liquids. Argon solubility was measured using precise saturation method probe relative volumes. that argon molar solubilities were slightly higher liquids with alkylsilane siloxane groups within cation, compared carbon-based branched groups. anion size,...