The role of the C2 position in interionic interactions of imidazolium based ionic liquids: a vibrational and NMR spectroscopic study

2010 ◽  
Vol 12 (42) ◽  
pp. 14153 ◽  
Author(s):  
Kristina Noack ◽  
Peter S. Schulz ◽  
Natalia Paape ◽  
Johannes Kiefer ◽  
Peter Wasserscheid ◽  
...  
2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Anthony D. Covington ◽  
William R. Wise

Abstract In preparing the second edition of ‘Tanning Chemistry. The Science of Leather.’, the literature was updated and the content was revised and reviewed. Here, the new findings are presented and discussed. Notable developments include the necessary rethinking of the mechanism of sulfide unhairing because of new understanding of the aqueous chemistry of sulfide species. Revision upwards of the value of the second pKa for sulfide species ionisation means that S2− cannot exist in an aqueous medium, so the unhairing species in hair burn reactions is HS−. Although the technology remains the same, this means the mechanisms of associated reactions such as immunisation must be revised. Rawstock preservation has benefitted from studies of the potential role of materials from plants which accumulate salt, but which also contribute terpene compounds. There is also further discussion on the continuing issue of chromium (VI) in the leather industry. The application to processing of new solvents, ionic liquids and deep eutectics, is the coming technology, which offers transforming options for new chemistries and products. Renewed interest in vegetable tanning and methods of wet white processing are current trends. Also, within the topic of reagent delivery is processing in a solid medium of plastic beads. Graphical abstract


2021 ◽  
Vol 373 ◽  
pp. 137865
Author(s):  
L. Guglielmero ◽  
Mo. Meskinfam Langroudi ◽  
M. Al Khatib ◽  
M. Aysla Costa de Oliveira ◽  
B. Mecheri ◽  
...  

2012 ◽  
Vol 116 (11) ◽  
pp. 3512-3518 ◽  
Author(s):  
Enrico Binetti ◽  
Annamaria Panniello ◽  
Leonardo Triggiani ◽  
Raffaele Tommasi ◽  
Angela Agostiano ◽  
...  

2021 ◽  
Author(s):  
Daniel B. Werz ◽  
Ivan A. Andreev ◽  
Nina K. Ratmanova ◽  
André U. Augustin ◽  
Olga A. Ivanova ◽  
...  

2013 ◽  
Vol 396 ◽  
pp. 78-83 ◽  
Author(s):  
Harry D. Pratt ◽  
Jonathan C. Leonard ◽  
Leigh Anna M. Steele ◽  
Chad L. Staiger ◽  
Travis M. Anderson

2009 ◽  
Vol 81 (4) ◽  
pp. 767-776 ◽  
Author(s):  
Cinzia Chiappe ◽  
Marco Malvaldi ◽  
Christian Silvio Pomelli

The role of ionic liquids (ILs) as solvents in chemistry is limited by the poor understanding of the solvation phenomenon in these media. The usual classification criteria used for molecular solvents through various experimental measurements fail to insert ILs into a univocal classification for ILs. Here, we first discuss the unsuitability of the usual interpretative scheme for molecular liquids and elucidate schematically the mechanism of solvation in ILs, pointing out the peculiarities that differentiate them with respect to molecular liquids. Second, we focus on reactivity and reaction kinetics in ILs, underlining the many problems that the complexity of these media reflects on the interpretation of kinetic data and some possible approaches to understand qualitatively the (often not trivial) kinetic problems for reactions performed in ILs.


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