Unveiling Noncovalent Interactions in Imidazolium, Pyrrolidinium, or Quaternary Ammonium Cation and Acetate Anion Based Protic Ionic Liquids: Structure and Spectral Characteristics

2018 ◽  
Vol 122 (30) ◽  
pp. 6225-6235 ◽  
Author(s):  
Prakash L. Verma ◽  
Shridhar P. Gejji
Keyword(s):  
Ionic Liquids ◽  
Quaternary Ammonium ◽  
Noncovalent Interactions ◽  
Spectral Characteristics ◽  
Ammonium Cation ◽  
Acetate Anion ◽  
Protic Ionic Liquids

scholarly journals SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF PROTON IONIC LIQUIDS WITH TETRACHLOROPALLADATE ANION

2021 ◽  
pp. 119-126
Author(s):  
Людмила Ивановна Ворончихина ◽  
Олег Евгеньевич Журавлев ◽  
Анастасия Сергеевна Деревцова ◽  
Ольга Олеговна Андреева ◽  
Наталья Юрьевна Рассказова
Keyword(s):  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Melting Temperature ◽  
Ammonium Salt ◽  
Spectral Characteristics ◽  
Ammonium Cation ◽  
Hypsochromic Shift ◽  
Absorption Bands ◽  
Halide Anion

Синтезированы протонные металлсодержащие ионные жидкости с катионом аммония различной структуры и тетрахлорпалладат анионом. Изучены их физико-химические и спектральные характеристики. Установлено, что замена галогенид-аниона в протонированной соли аммония на комплексный PdCl- анион приводит к повышению температуры плавления комплексов, и наблюдается гипсохромный сдвиг полос поглощения катиона в ИК- и УФ- областях спектра. Proton metal-containing ionic liquids with an ammonium cation of various structures and a tetrachloropalladate anion were synthesized. Their physicochemical and spectral characteristics are studied. It is established that the replacement of the halide anion in the protonated ammonium salt with the complex PdCl- anion leads to an increase in the melting temperature of the complexes, and a hypsochromic shift of the absorption bands of the cation in the IR and UV regions of the spectrum is observed.

DFT Study on the Chemical Absorption Mechanism of CO2 in Diamino Protic Ionic Liquids

2021 ◽  
Vol 125 (5) ◽  
pp. 1416-1428
Author(s):  
Jing Ma ◽  
Yutong Wang ◽  
Xueqing Yang ◽  
Mingxuan Zhu ◽  
Baohe Wang
Keyword(s):  
Ionic Liquids ◽  
Dft Study ◽  
Protic Ionic Liquids ◽  
Absorption Mechanism ◽  
Chemical Absorption

scholarly journals The Synthesis of Poly(Vinyl Alcohol) Grafted with Fluorinated Protic Ionic Liquids Containing Sulfo Functional Groups

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4158
Author(s):  
Patrycja Glińska ◽  
Andrzej Wolan ◽  
Wojciech Kujawski ◽  
Edyta Rynkowska ◽  
Joanna Kujawa
Keyword(s):  
Ionic Liquids ◽  
Vinyl Alcohol ◽  
Proton Exchange ◽  
Polymer Materials ◽  
Polymerization Reaction ◽  
Poly Vinyl Alcohol ◽  
Hydroxyl Groups ◽  
Protic Ionic Liquids ◽  
Synthesis Route ◽  
Sulfo Groups

There has been an ongoing need to develop polymer materials with increased performance as proton exchange membranes (PEMs) for middle- and high-temperature fuel cells. Poly(vinyl alcohol) (PVA) is a highly hydrophilic and chemically stable polymer bearing hydroxyl groups, which can be further altered. Protic ionic liquids (proticILs) have been found to be an effective modifying polymer agent used as a proton carrier providing PEMs’ desirable proton conductivity at high temperatures and under anhydrous conditions. In this study, the novel synthesis route of PVA grafted with fluorinated protic ionic liquids bearing sulfo groups (–SO3H) was elaborated. The polymer functionalization with fluorinated proticILs was achieved by the following approaches: (i) the PVA acylation and subsequent reaction with fluorinated sultones and (ii) free-radical polymerization reaction of vinyl acetate derivatives modified with 1-methylimidazole and sultones. These modifications resulted in the PVA being chemically modified with ionic liquids of protic character. The successfully grafted PVA has been characterized using 1H, 19F, and 13C-NMR and FTIR-ATR. The presented synthesis route is a novel approach to PVA functionalization with imidazole-based fluorinated ionic liquids with sulfo groups.

Sign in / Sign up

Export Citation Format

Share Document