N,N‘-Dialkylimidazolium Chloroplatinate(II), Chloroplatinate(IV), and Chloroiridate(IV) Salts and anN-Heterocyclic Carbene Complex of Platinum(II):  Synthesis in Ionic Liquids and Crystal Structures

2001 ◽  
Vol 40 (4) ◽  
pp. 795-800 ◽  
Author(s):  
Masihul Hasan ◽  
Ivan V. Kozhevnikov ◽  
M. Rafiq H. Siddiqui ◽  
Cristina Femoni ◽  
Alexander Steiner ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Crystal Structures ◽  
Carbene Complex

Synthesis and Crystal Structures of 1-Alkoxy-3-alkylimidazolium Salts Including Ionic Liquids, 1-Alkylimidazole 3-oxides and 1-Alkylimidazole Perhydrates

2008 ◽  
Vol 63 (4) ◽  
pp. 447-464 ◽  
Author(s):  
Gerhard Laus ◽  
Alexander Schwärzler ◽  
Gino Bentivoglio ◽  
Michael Hummel ◽  
Volker Kahlenberg ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Single Crystal ◽  
Crystal Structures ◽  
Limited Extent ◽  
Conductivity Measurements ◽  
Addition Compound ◽  
Imidazolium Salts ◽  
X Ray ◽  
Carbene Complex ◽  
Structure Determinations

AbstractFunctionalized quaternary imidazolium salts were prepared with the intention to obtain new ionic liquids (ILs). Thus, more than forty 3-alkoxy-1-alkylimidazolium salts, 3-alkoxy-1-alkyl-2-methylimidazolium salts, 1-methylimidazole 3-oxide and 1,2-dimethylimidazole 3-oxide as well as their salts, 1,3-dihydroxyimidazolium salts and 1,3-dihydroxy-2-methylimidazolium salts were synthesized and characterized by spectroscopy and, to a limited extent, by viscosity and conductivity measurements. Results of fourteen single crystal X-ray structure determinations are reported, among them also the parent compounds 1-hydroxyimidazole 3-oxide and 1-hydroxy-2-methylimidazole 3- oxide. Selective debenzylation of 1-benzyloxy-3-methyl imidazolium salts and mono-demethoxylation of 1,3-dimethoxyimidazolium salts were achieved by hydrogenolysis. In addition, a crystalline semiperhydrate of 1,2-dimethylimidazole was characterized. Furthermore, an addition compound of 1-methylimidazole 3-oxide with tris(2-thienyl)borane and a silver carbene complex derived from 1-benzyloxy-3-methylimidazolium hexafluorophosphate was crystallized and characterized.

Olefin Self-Cross-Metathesis Catalyzed by the Second-Generation Grubbs′ Carbene Complex in Room Temperature Ionic Liquids.

ChemInform ◽  
2006 ◽  
Vol 37 (31) ◽  
Author(s):  
Xiong Ding ◽  
Xianhai Lv ◽  
Bin Hui ◽  
Zhijuan Chen ◽  
Minliang Xiao ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Second Generation ◽  
Room Temperature Ionic Liquids ◽  
Carbene Complex ◽  
Cross Metathesis

Hydrogen bonds in the crystal structure of hydrophobic and hydrophilic COOH-functionalized imidazolium ionic liquids

CrystEngComm ◽  
2014 ◽  
Vol 16 (14) ◽  
pp. 3040-3046 ◽  
Author(s):  
Xiao-Peng Xuan ◽  
Liang-Liang Chang ◽  
Heng Zhang ◽  
Na Wang ◽  
Yang Zhao
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Carboxyl Group ◽  
Imidazolium Ionic Liquids

Hydrogen bonds such as the classic O–H⋯X (halide ion) hydrogen bond and the carboxyl group dimer were observed in the crystal structures of hydrophilic and hydrophobic COOH-functionalized imidazolium ionic liquids, respectively.

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