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Your search keyword '"Pyridinium compounds -- Thermal properties"' showing total 8 results
Start Over Descriptor "Pyridinium compounds -- Thermal properties" Journal journal of physical chemistry b
8 results on '"Pyridinium compounds -- Thermal properties"'

1. Effect of number and position of positive charges on the stacking of porphyrins along poly[d(A-T)2] at high binding densities

Author

Jin-A Jung, Sang Hwa Lee, Biao Jin, Youngku Sohn, and Kim, Seog K.

Subjects
Circular dichroism -- Usage, Methyl groups -- Chemical properties, Methyl groups -- Thermal properties, Porphyrins -- Structure, Porphyrins -- Chemical properties, Porphyrins -- Thermal properties, Pyridinium compounds -- Chemical properties, Pyridinium compounds -- Structure, Pyridinium compounds -- Thermal properties, Chemicals, plastics and rubber industries
Published
2010

2. Activity coefficients at infinite dilution measurements for organic solutes and water in the ionic liquid 1-(3-hydroxypropyl)pyridinium trifluorotris(perfluoroethyl)phosphate

Author

Marciniak, Andrzej and Wlazlo, Michal

Subjects
Fluorocarbons -- Chemical properties, Fluorocarbons -- Structure, Fluorocarbons -- Thermal properties, Gas chromatography -- Usage, Ionic solutions -- Chemical properties, Ionic solutions -- Thermal properties, Pyridinium compounds -- Chemical properties, Pyridinium compounds -- Thermal properties, Chemicals, plastics and rubber industries
Published
2010

3. Anion influence on thermophysical properties of ionic liquids: 1-butylpyridinium tetrafluoroborate and 1-butylpyridinium triflate

Author

Bandres, Isabel, Royo, Felix M., Gascon, Ignacio, Castro, Miguel, and Lafuente, Carlos

Subjects
Fluorine -- Chemical properties, Ionic solutions -- Chemical properties, Ionic solutions -- Thermal properties, Organoboron compounds -- Structure, Organoboron compounds -- Chemical properties, Organoboron compounds -- Thermal properties, Pyridinium compounds -- Chemical properties, Pyridinium compounds -- Thermal properties, Chemicals, plastics and rubber industries
Published
2010

5. Unusual behavior of the aqueous solutions of gemini bispyridinium surfactants: apparent and partial molar enthalpies of the dimethanesulfonates

Author

Fisicaro, Emilia, Compari, Carlotta, Biemmi, Mariano, Duce, Elenia, Peroni, Monica, Barbero, Nadia, Viscardi, Guido, and Quagliotto, Pierluigi

Subjects
Calorimetry -- Usage, Enthalpy -- Evaluation, Pyridinium compounds -- Chemical properties, Pyridinium compounds -- Thermal properties, Sulfones -- Chemical properties, Sulfones -- Thermal properties, Chemicals, plastics and rubber industries
Published
2008

6. Molecular dynamics study of the temperature-dependent optical Kerr effect spectra and intermolecular dynamics of room temperature ionic liquid 1-methoxyethylpyridinium dicyanoamide

Author

Hu, Zhonghan, Xuhui Huang, Annapureddy, Harsha V.R., and Margulis, Claudio J.

Subjects
Kerr effect -- Analysis, Molecular dynamics -- Usage, Pyridinium compounds -- Spectra, Pyridinium compounds -- Thermal properties, Pyridinium compounds -- Chemical properties, Chemicals, plastics and rubber industries
Abstract

Molecular dynamics simulations are used for calculating the optical Kerr effect (OKE) spectra of 1-methoxyethylpyridinium dicyanoamide, a room-temperature ionic liquid (IL). The studies have shown that the theoretical methodology has a vital impact on the speed of molecular dynamics simulations of polarizable systems.

Published
2008

7. Thermophysic comparative study of two isomeric pyridinium-based ionic liquids

Author

Bandres, Isabel, Giner, Beatriz, Artigas, Hector, Royo, Felix M., and Lafuente, Carlos

Subjects
Entropy (Physics) -- Analysis, Ionic solutions -- Chemical properties, Ionic solutions -- Thermal properties, Organoboron compounds -- Chemical properties, Organoboron compounds -- Thermal properties, Pyridinium compounds -- Chemical properties, Pyridinium compounds -- Thermal properties, Chemicals, plastics and rubber industries
Abstract

The thermophysical studies of two isomeric room-temperature ionic liquids (RTILs), n-butyl-3-methyl-pyridinium tetrafluoroborate and n-butyl-4-methyl-pyridinium tetrafluoroborate are presented. The results from the studies helped to obtain the coefficients of thermal expansion, molar refractions, and dynamic viscosities and calculate the entropies and enthalpies of surface formation per unit surface area.

Published
2008

8. Molecular force field for ionic liquids III: Imidazolium, pyridinium, and phosphonium cations; Chloride, bromide, and dicyanamide anions

Author

Canongia Lopes, Jose N. and Padua, Agilio A.H.

Subjects
Thermodynamics -- Research, Pyridinium compounds -- Thermal properties, Pyridinium compounds -- Structure, Chlorine compounds -- Thermal properties, Chlorine compounds -- Structure, Chemicals, plastics and rubber industries
Abstract

The calculations of equilibrium thermodynamic and structural properties concerning the cations alkylimidazolium, tetra-alkylphosphonium, and N-alkylpyridinium, and anions chloride, bromide, and dicyanamide is reported. The results show that the rotation of the methyl group around the NAP-C1 bond in N-methylimidazolium is almost free, whereas the C1-C2 bond in longer alkyl chains adopts an orientation perpendicular to the aromatic ring.

Published
2006

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