scholarly journals Ionic liquids and organic ionic plastic crystals utilizing small phosphonium cations

2011 ◽  
Vol 21 (21) ◽  
pp. 7640 ◽  
Author(s):  
Vanessa Armel ◽  
David Velayutham ◽  
Jiazeng Sun ◽  
Patrick C. Howlett ◽  
Maria Forsyth ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Plastic Crystals ◽  
Phosphonium Cations

Solidification of Ionic Liquids: Theory and Techniques

2010 ◽  
Vol 63 (4) ◽  
pp. 544 ◽  
Author(s):  
Anja-Verena Mudring
Keyword(s):  
Phase Transition ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Solid Phase ◽  
Soft Materials ◽  
Separation Science ◽  
Vast Number ◽  
Plastic Crystals ◽  
Thermal Fluids ◽  
Solid Phase Transition

Ionic liquids (ILs) have become an important class of solvents and soft materials over the past decades. Despite being salts built by discrete cations and anions, many of them are liquid at room temperature and below. They have been used in a wide variety of applications such as electrochemistry, separation science, chemical synthesis and catalysis, for breaking azeotropes, as thermal fluids, lubricants and additives, for gas storage, for cellulose processing, and photovoltaics. It has been realized that the true advantage of ILs is their modular character. Each specific cation–anion combination is characterized by a unique, characteristic set of chemical and physical properties. Although ILs have been known for roughly a century, they are still a novel class of compounds to exploit due to the vast number of possible ion combinations and one fundamental question remains still inadequately answered: why do certain salts like ILs have such a low melting point and do not crystallize readily? This Review aims to give an insight into the liquid–solid phase transition of ILs from the viewpoint of a solid-state chemist and hopes to contribute to a better understanding of this intriguing class of compounds. It will introduce the fundamental theories of liquid–solid-phase transition and crystallization from melt and solution. Aside form the formation of ideal crystals the development of solid phases with disorder and of lower order like plastic crystals and liquid crystals by ionic liquid compounds are addressed. The formation of ionic liquid glasses is discussed and finally practical techniques, strategies and methods for crystallization of ionic liquids are given.

The influence of alkyl chain branching on the properties of pyrrolidinium-based ionic electrolytes

2020 ◽  
Vol 22 (32) ◽  
pp. 18102-18113 ◽  
Author(s):  
Danah Al-Masri ◽  
Ruhamah Yunis ◽  
Anthony F. Hollenkamp ◽  
Cara M. Doherty ◽  
Jennifer M. Pringle
Keyword(s):  
Ionic Liquids ◽  
Electrochemical Properties ◽  
Alkyl Chain ◽  
Chain Branching ◽  
Plastic Crystals ◽  
New Family

Introduction of a branched alkyl chain onto the widely used pyrrolidinium cation has produced a new family of ionic liquids and plastic crystals with advantageous physical, thermal and electrochemical properties.

Ionic liquids and plastic crystals based on tertiary sulfonium and bis(fluorosulfonyl)imide

2010 ◽  
Vol 55 (3) ◽  
pp. 1221-1226 ◽  
Author(s):  
Hong-Bo Han ◽  
Jin Nie ◽  
Kai Liu ◽  
Wei-Kun Li ◽  
Wen-Fang Feng ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Plastic Crystals

scholarly journals Thermal properties, crystal structures, and phase diagrams of ionic plastic crystals and ionic liquids containing a chiral cationic sandwich complex

2020 ◽  
Vol 22 (44) ◽  
pp. 25803-25810
Author(s):  
Tomoyuki Mochida ◽  
Ryo Sumitani ◽  
Tomoaki Yamazoe
Keyword(s):  
Ionic Liquids ◽  
Thermal Properties ◽  
Phase Diagrams ◽  
Crystal Structures ◽  
Sandwich Complex ◽  
Plastic Crystals

Salts of a chiral ruthenium sandwich complex with various anions were synthesized and their phase diagrams were investigated.

Ionic Liquids Based on Phosphonium Cations As Neat Lubricants or Lubricant Additives for a Steel/Steel Contact

2014 ◽  
Vol 6 (15) ◽  
pp. 13115-13128 ◽  
Author(s):  
Inés Otero ◽  
Enriqueta R. López ◽  
Manuela Reichelt ◽  
María Villanueva ◽  
Josefa Salgado ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Lubricant Additives ◽  
Phosphonium Cations

Protic ionic liquids based on phosphonium cations: comparison with ammonium analogues

2011 ◽  
Vol 47 (42) ◽  
pp. 11612 ◽  
Author(s):  
Usman Ali Rana ◽  
R. Vijayaraghavan ◽  
Mareike Walther ◽  
Jiazeng Sun ◽  
Angel A. J. Torriero ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Protic Ionic Liquids ◽  
Phosphonium Cations
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