Separation of phenol-containing pyrolysis products using comprehensive two-dimensional chromatography with columns based on pyridinium ionic liquids

2016 ◽  
Vol 39 (19) ◽  
pp. 3754-3760 ◽  
Author(s):  
Mikhail V. Shashkov ◽  
Vladimir N. Sidelnikov
2015 ◽  
Vol 17 (40) ◽  
pp. 26575-26579 ◽  
Author(s):  
Samrat Dutta ◽  
Zhe Ren ◽  
Thomas Brinzer ◽  
Sean Garrett-Roe

2D-IR studies of organic and inorganic azides dissolved in ionic liquids show different solvation structures and picosecond dynamics.


2016 ◽  
Vol 72 (1) ◽  
pp. 80-83 ◽  
Author(s):  
Cameron Black ◽  
Philip Lightfoot

VIVoxyfluorides are of interest as frustrated magnets. The successful synthesis of two-dimensionally connected vanadium(IV) oxyfluoride structures generally requires the use of ionic liquids as solvents. During solvothermal synthesis experiments aimed at producing two- and three-dimensional vanadium(IV) selenites with triangular lattices, the title compound, diaquatetra-μ-fluorido-dioxidodivanadium(IV) monohydrate, V2O2F4(H2O)2·H2O, was discovered and features a new infinite V4+-containing two-dimensional layer comprised of fluorine-bridged corner- and edge-sharing VOF4(H2O) octahedral building units. The synthesis was carried out under solvothermal conditions. The V4+centre exhibits a typical off-centring, with a short V=O bond and an elongatedtrans-V—F bond. Hydrogen-bonded water molecules occur between the layers. The structure is related to previously reported vanadium oxyfluoride structures, in particular, the same layer topology is seen in VOF3.


2019 ◽  
Vol 226 ◽  
pp. 109-116 ◽  
Author(s):  
Jiashi Yin ◽  
Phuoc Hoang-Hanh Duong ◽  
Shuai Tan ◽  
Katie Dongmei Li-Oakey

2021 ◽  
Vol 79 (4) ◽  
pp. 443
Author(s):  
Yumiao Lu ◽  
Wei Chen ◽  
Yanlei Wang ◽  
Feng Huo ◽  
Yihui Dong ◽  
...  

2020 ◽  
Vol 124 (44) ◽  
pp. 24215-24222
Author(s):  
Lili Liu ◽  
Duo Song ◽  
Biao Jin ◽  
Michael A. Sinnwell ◽  
Jun Liu ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Kalyani Kathirgamanathan ◽  
Warren J. Grigsby ◽  
Jafar Al-Hakkak ◽  
Neil R. Edmonds

In this study two-dimensional FTIR analysis was applied to understand the temperature effects on processing cellulose solutions in imidazolium-based ionic liquids. Analysis of the imidazolium ionνC2–H peak revealed hydrogen bonding within cellulose solutions to be dynamic on heating and cooling. The extent of hydrogen bonding was stronger on heating, consistent with greater ion mobility at higher temperature when the ionic liquid network structure is broken. At ambient temperatures a blue shiftedνC2–H peak was indicative of greater cation-anion interactions, consistent with the ionic liquid network structure. Both cellulose and water further impact the extent of hydrogen bonding in these solutions. The FTIR spectral changes appeared gradual with temperature and contrast shear induced rheology changes which were observed on heating above 70°C and cooling below 40°C. The influence of cellulose on solution viscosity was not distinguished on initial heating as the ionic liquid network structure dominates rheology behaviour. On cooling, the quantity of cellulose has a greater influence on solution rheology. Outcomes suggest processing cellulose in ionic liquids above 40°C and to reduce the impacts of cation-anion effects and enhance solubilisation, processing should be done at 70°C.


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