Synthesis, thermal behavior and kinetic study of N-morpholinium dicationic ionic liquids by thermogravimetry

2021 ◽  
Vol 332 ◽  
pp. 115662
Author(s):  
Claudio Ferdeghini ◽  
Lorenzo Guazzelli ◽  
Christian S. Pomelli ◽  
Andrea Ciccioli ◽  
Bruno Brunetti ◽  
...  
Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4211
Author(s):  
Andrea Mezzetta ◽  
Luca Guglielmero ◽  
Angelica Mero ◽  
Giorgio Tofani ◽  
Felicia D’Andrea ◽  
...  

Benzimidazole dicationic ionic liquids (BDILs) have not yet been widely explored in spite of their potential. Therefore, two structurally related families of BDILs, paired with either bromide or bistriflimide anions and bearing alkyl spacers ranging from C3 to C6, have been prepared. Their thermal properties have been studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), while their electrical properties have been assessed by cyclic voltammetry (CV). TG analysis confirmed the higher stability of the bistriflimide BDILs over the bromide BDILs, with minor variation within the two families. Conversely, DSC and CV allowed for ascertaining the role played by the spacer length. In particular, the thermal behavior changed dramatically among the members of the bistriflimide family, and all three possible thermal behavior types of ILs were observed. Furthermore, cyclic voltammetry showed different electrochemical window (C3(C1BenzIm)2/2Tf2N < C4(C1BenzIm)2/2Tf2N, C5(C1BenzIm)2/2Tf2N < C6(C1BenzIm)2/2Tf2N) as well as a reduction peak potential, shape, and intensity as a function of the spacer length. The results obtained highlight the benefit of accessing a more structurally diverse pool of compounds offered by dicationic ILs when compared to the parent monocationic ILs. In particular, gains are to be found in the ease of fine-tuning their properties, which translates in facilitating further investigations toward BDILs as designer solvents and catalysts.


2020 ◽  
Vol 17 (4) ◽  
pp. 450-464
Author(s):  
Mohammad Javaherian ◽  
Seyyed Jafar Saghanezhad

Dicationic ionic liquids are an emerging group of Ionic Liquids (ILs) that are currently receiving much attention as green reaction media and catalysts. Because of a great number of possible combinations of cations and anions, the physical and chemical properties of dicationic ionic liquids are more tunable and broader than monocationic ILs. Therefore, their unique properties have made them the target of many applied and fundamental researches. Actually, dicationic ionic liquids are more effective and rather fascinating than traditional monocationic ILs. So, due to greater versatility and diversity, their applications in organic synthesis have been extensively grown. In this review, we have focused on the synthesis, characterization and applications of dicationic ionic liquids, especially, in organic synthesis.


2021 ◽  
Vol 14 (5) ◽  
pp. 103123
Author(s):  
C.E. El shafiee ◽  
R.A. El-Nagar ◽  
M.I. Nessim ◽  
M.M.H. Khalil ◽  
M.E. Shaban ◽  
...  

2018 ◽  
Vol 247 ◽  
pp. 804-811 ◽  
Author(s):  
Zhongping Xiang ◽  
Jianghui Liang ◽  
Hervan Marion Morgan ◽  
Yuanyuan Liu ◽  
Hanping Mao ◽  
...  

2016 ◽  
Vol 120 (39) ◽  
pp. 7732-7744 ◽  
Author(s):  
Prakash L. Verma ◽  
Libero J. Bartolotti ◽  
Shridhar P. Gejji

2017 ◽  
Vol 410 (19) ◽  
pp. 4633-4643 ◽  
Author(s):  
Mohsen Talebi ◽  
Rahul A. Patil ◽  
Leonard M. Sidisky ◽  
Alain Berthod ◽  
Daniel W. Armstrong

Sign in / Sign up

Export Citation Format

Share Document