H/D Isotope Effects on Nuclear Shielding as a Tool for the Study of Interionic Hydrogen Bonds in Ionic Liquids

2018 ◽  
Vol 86 (14) ◽  
pp. 179-185
Author(s):  
Gualberto Bottini ◽  
Cecilia Pérez ◽  
Guillermo Moyna
Keyword(s):  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Isotope Effects ◽  
Nuclear Shielding ◽  
Interionic Hydrogen

Hydrogen Bonds in Ionic Liquids Revisited: 35/37Cl NMR Studies of Deuterium Isotope Effects in 1-n-Butyl-3-Methylimidazolium Chloride

2007 ◽  
Vol 111 (40) ◽  
pp. 11619-11621 ◽  
Author(s):  
Richard C. Remsing ◽  
Jayme L. Wildin ◽  
Ashleigh L. Rapp ◽  
Guillermo Moyna
Keyword(s):  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Isotope Effects ◽  
Nmr Studies ◽  
Deuterium Isotope Effects

Observation of aliphatic C–H⋯X hydrogen bonds in imidazolium ionic liquids

2015 ◽  
Vol 51 (15) ◽  
pp. 3193-3195 ◽  
Author(s):  
Alexander Khrizman ◽  
Hiu Yan Cheng ◽  
Gualberto Bottini ◽  
Guillermo Moyna
Keyword(s):  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Isotope Effects ◽  
Imidazolium Ionic Liquids

Measurement of H/D isotope effects on the19F resonances of sequentially deuterated 1-n-butyl-3-methylimidazolium hexafluorophosphate and tetrafluoroborate isotopologues reveals the formation of aliphatic C–H⋯X hydrogen bonds between the fluorinated anions and protons along theN-alkyl sidechains of the cations.

Carbon-13 isotope effects on 199Hg nuclear shielding

1985 ◽  
Vol 63 (2) ◽  
pp. 397-400 ◽  
Author(s):  
Angelika Sebald ◽  
Bernd Wrackmeyer
Keyword(s):  
Isotope Effects ◽  
Nuclear Shielding

scholarly journals Modification of Chitin Particles with Ionic Liquids Containing Ethyl Substituent in a Cation

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Malgorzata M. Jaworska ◽  
Andrzej Górak ◽  
Joanna Zdunek
Keyword(s):  
Particle Size ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
High Viscosity ◽  
Physical Structure ◽  
Ethyl Group ◽  
Network Of Hydrogen Bonds

Chitin cannot be dissolved in conventional solvents due to the strong inter- and intrasheet network of hydrogen bonds and the large number of crystalline regions. Some ionic liquids (ILs) have been suggested in the literature as possible solvents for chitin. Seven of them, all having an ethyl group as substituent in the cationic ring, have been tested in this work: [Emim][Cl], [Emim][Br], [Emim][I], [Emim][OAc], [Emim][Lact], [Epyr][I], and [EMS][BFSI]. Chitin was insoluble in [EMS][BFSI] while for all other ILs solubility was limited due to high viscosity of solutions and equilibria have not been reached. Changes in physical structure, particle size distribution, and crystallinity of recovered chitin depended on ionic liquid used. Increase in porosity was observed for chitin treated with [Emim][Cl], [Emim][I], [Emim][Br], and [Emim][Lact]; changes in particle size distribution were observed for [Emim][AcOH] and [EMS][BFSI]; increase in crystallinity was noticed for chitin treated with [Epyr][I] while decrease in crystallinity for [Emim][I] was noticed. All tested ionic liquids were reused four times and changes in FTIR spectra could be observed for each IL.

Unique Structures and Vibrational Spectra of Protic Ionic Liquids Confined in TiO2 Slits: The Role of Interfacial Hydrogen Bonds

Langmuir ◽  
2018 ◽  
Vol 34 (44) ◽  
pp. 13449-13458 ◽  
Author(s):  
Zhongyang Dai ◽  
Lili Shi ◽  
Linghong Lu ◽  
Yunhao Sun ◽  
Xiaohua Lu
Keyword(s):  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Vibrational Spectra ◽  
Protic Ionic Liquids

Hydrogen bonds in protic ionic liquids and their correlation with physicochemical properties

2011 ◽  
Vol 47 (47) ◽  
pp. 12676 ◽  
Author(s):  
Muhammed Shah Miran ◽  
Hiroshi Kinoshita ◽  
Tomohiro Yasuda ◽  
Md. Abu Bin Hasan Susan ◽  
Masayoshi Watanabe
Keyword(s):  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Physicochemical Properties ◽  
Protic Ionic Liquids
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