Raman Spectroscopy and the Heterogeneous Liquid Structure in Ionic Liquids

2015 ◽  
pp. 165-187 ◽  
Author(s):  
Satyen Saha ◽  
Takashi Hiroi ◽  
Koichi Iwata ◽  
Hiro-O Hamaguchi
Keyword(s):  
Raman Spectroscopy ◽  
Ionic Liquids ◽  
Liquid Structure

scholarly journals Effect of Ionic Liquids on the Physical Properties of the Newly Synthesized Conducting Polymer

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Dong Uk Lee ◽  
Jin Yeong Jeong ◽  
Ji Woong Han ◽  
Gi-Chung Kwon ◽  
Pankaj Attri ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ionic Liquids ◽  
Conducting Polymer ◽  
Optical Devices ◽  
Polymer Mixtures ◽  
Confocal Raman Spectroscopy ◽  
Vis Spectroscopy ◽  
Film Roughness ◽  
Confocal Raman ◽  
Insight Into

Conducting polymer has many applications in electronics, optical devices, sensors, and so on; however, there is still a massive scope of improvement in this area. Therefore, towards this aim, in this study, we synthesized a new thiophene-based conducting polymer, 2-heptadecyl-5-hexyl-6-(5-methylthiophen-2-yl)-4-(5-((E)-prop-1-enyl)thiophen-2-yl)-5H-pyrrolo[3,4-d]thiazole (HHMPT). Further, to increase its application, the interactions between the conducting polymer (HHMPT) and ionic liquids (ILs) were investigated by UV-Vis spectroscopy, FTIR spectroscopy, and confocal Raman spectroscopy techniques. Moreover, film roughness and conductivity of the polymer film with or without ILs were also studied. The imidazolium- and ammonium family ILs with the potential to interact with the newly synthesized conducting polymer were used. The results of the interaction studies revealed that the imidazolium family IL-polymer mixtures and ammonium family IL-polymer mixtures have almost similar conductivity at low concentration of ILs. This study provides an insight into the combined effect of a polymer and ILs and may generate many theoretical and experimental opportunities.

scholarly journals Studies on the Solubility of Terephthalic Acid in Ionic Liquids

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 80 ◽  
Author(s):  
Karolina Matuszek ◽  
Ewa Pankalla ◽  
Aleksander Grymel ◽  
Piotr Latos ◽  
Anna Chrobok
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Temperature Effect ◽  
Industrial Production ◽  
Terephthalic Acid ◽  
Liquid Structure ◽  
Environmentally Benign ◽  
Low Solubility ◽  
Solvent Properties

Low solubility of terephthalic acid in common solvents makes its industrial production very difficult and not environmentally benign. Ionic liquids are known for their extraordinary solvent properties, with capability to dissolve a wide variety of materials, from common solvents to cellulose, opening new possibilities to find more suitable solvents for terephthalic acid. This work presents studies on the solubility of terephthalic acid in ionic liquids, and demonstrates that terephthalic acid is soluble in ionic liquids, such as 1-ethyl-3-methylimidazolium diethylphosphate, 1-butyl-3-methylimidazolium acetate, and dialkylimidazolium chlorides up to four times higher than in DMSO. Additionally, the temperature effect and correlation of ionic liquid structure with solubility efficiency are discussed.

Ionic liquids: Liquid structure

2011 ◽  
Vol 162 (3) ◽  
pp. 101-104 ◽  
Author(s):  
L.A. Aslanov
Keyword(s):  
Ionic Liquids ◽  
Liquid Structure

Complementing Crystallography with Ultralow-Frequency Raman Spectroscopy: Structural Insights into Nitrile-Functionalized Ionic Liquids

ChemPhysChem ◽  
2015 ◽  
Vol 17 (1) ◽  
pp. 93-97 ◽  
Author(s):  
Hong-Kai Chen ◽  
Nitin Srivastava ◽  
Satyen Saha ◽  
Shinsuke Shigeto
Keyword(s):  
Raman Spectroscopy ◽  
Ionic Liquids ◽  
Ultralow Frequency ◽  
Structural Insights

Vibrational Cooling Process of S1trans-Stilbene in Ionic Liquids Observed with Picosecond Time-resolved Raman Spectroscopy

2007 ◽  
Vol 36 (4) ◽  
pp. 504-505 ◽  
Author(s):  
Koichi Iwata ◽  
Kyousuke Yoshida ◽  
Yuta Takada ◽  
Hiro-o Hamaguchi
Keyword(s):  
Raman Spectroscopy ◽  
Ionic Liquids ◽  
Cooling Process ◽  
Time Resolved ◽  
Vibrational Cooling

scholarly journals Comment on “Lewis acidic ionic liquids of crown ether complex cations: preparation and applications in organic reactions” by Y. Liang, J. Wang, C. Cheng and H. Jing, RSC Adv., 2016, 6, 93546

RSC Advances ◽  
2017 ◽  
Vol 7 (82) ◽  
pp. 51907-51909 ◽  
Author(s):  
Małgorzata Swadźba-Kwaśny
Keyword(s):  
Raman Spectroscopy ◽  
Ionic Liquids ◽  
Crown Ether ◽  
Organic Reactions ◽  
Crown Ether Complex ◽  
Acidic Ionic Liquids ◽  
Published Paper ◽  
Ether Complex

In the recently published paper by Liang et al., chlorozincate(ii) anion was identified as [ZnCl3]− based on Raman spectroscopy. According to every textbook and numerous papers, this band corresponds to [ZnCl4]2−.

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