Structure of 1-ethyl-3-methylimidazolium hexafluorophosphate: model for room temperature molten salts

Abstract

The crystal structure of 1 -ethyl-3-methylimidatolium (EMI+) hexafluorophosphate consists of interionic interactions dominated by cation-anion coulombic forces with minimal hydrogen bonding and serves as a model for EMI+ room temperature molten salts containing weakly complexing anions.

Designing Ionic Liquids: Imidazolium Melts with Inert Carborane Anions

“…Of 36 tetracyano-p-quinodimethanide, 37 bromide, 32 tetrabromoaluminate, 32 and tetrachloropalladate 38 ), only the chloride is reported to have disorder. However, we note that all of these salts have relatively small and/or chargeexposed anions and that in each of these crystal structures, H-bonding or stacking interactions have been identified in the lattice.…”

“…These dimensions are based on the sum of the van der Waals radii for hydrogen and chlorine and the supposition that the energy of interaction will be highest for those C-H‚‚‚Cl geometries that approach linearity. 36 The limits are arbitrary and are not meant to deny the continuum of weak C-H‚‚‚Cl interactions that contribute to lattice energetics. 39 These limits easily encompass the majority of such interactions.…”

Computer Simulation of a “Green Chemistry” Room-Temperature Ionic Solvent

“…As far as we know, the X-ray crystal structure is available only for a few compounds. 4,5 UV-vis, IR 6,7 spectra, and thermal properties 8 are available for some of these salts as well. Despite this, physical and chemical data for most compounds of interest is still incomplete, and in general, it is difficult to find those for which X-ray structure, UV, IR, diffusion constants, conductivity, and melting point are known.…”

“…In his review article, Welton also describes preparation and handling techniques. Physical and chemical properties of some of these solvents have only recently been investigated experimentally [1][2][3][4][5][6][7][8][9][10] and theoretically. [11][12][13] Recently, Holbrey and co-workers 2 performed NMR and IR spectroscopy, polarizing optical microscopy, and differential scanning calorimetry of some of these ionic organic compounds.…”

Líquidos iônicos eletropolimerizáveis

“…Assim a presença monômero sintetizado no copolímero afeta o comportamento da polianilina, assim como qualquer substituinte volumoso, porém o copolímero apresenta propriedades intrínsecas de líquidos iônicos, demonstrando a formação de um material multifuncional. [3][4][5][6][7][8][9][10] , eletroquímica [11][12][13][14][15][16][17][18][19][20][21][22][23][24] , síntese orgânica [25][26][27][28] e na extração líquido-sólido ou líquido-líquido, [29][30][31][32] entre outras aplicações. A principal aplicação dos líquidos iônicos sintetizados e estudada dentro desse…”