ChemInform Abstract: Ruthenium-Catalyzed Selective N-Monoalkylation of Anilines with Tetraalkylammonium Halides.

Novel peroxosolvates of tetraalkylammonium halides Et4N+Cl–•2(H2O2) (1), Et4N+Br–•2(H2O2) (2), Me3(ClCH2CH2)N+Cl–•H2O2 (3) and Me3PhN+Cl–•H2O2 (4) were prepared from concentrated hydrogen peroxide and the corresponding structures were determined by X-ray crystallography. Structures...

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Conductimetric studies of ionic association of tetraalkylammonium halides in iso-propanol + water mixtures at 25 °C. Part II.

Canadian Journal of Chemistry ◽

10.1139/v88-278 ◽

1988 ◽

Vol 66 (7) ◽

pp. 1720-1727 ◽

Cited By ~ 6

Author(s):

Auaz Ahmad Ansari ◽

M. R. Islam

Keyword(s):

Dielectric Constant ◽

Association Constant ◽

Ionic Association ◽

Size Parameter ◽

Solvent Interactions ◽

Tetraalkylammonium Ions ◽

Conductance Data ◽

Electrical Conductivities ◽

Ion Size ◽

Tetraalkylammonium Halides

Electrical conductivities of Me4NBr, Et4NBr, Pr4NBr, Bu4NBr, and Bu4PBr have been measured in isopropanol + water (2-PrOH + H2O) mixtures covering the approximate range of dielectric constant (71.40 ≥ D ≥ 19.40) at 25 °C. The conductance data have been analysed by using the Fuoss-1978 (F78) conductance equation and the results compared with those obtained from the Fuoss–Onsager–Skinner (FOS) equation. The values of the limiting equivalent conductance, Λ0, the association constant, KA, and the distance of ion-size parameter [Formula: see text] are computed from these data. A better fit of the conductance data was provided by the F78 equation. Ion–solvent interactions and effective sizes of tetraalkylammonium ions are also discussed in order to understand the magnitude of the ionic association. The overall association behaviour of these salts has been found to increase with decrease in dielectric constant of the medium.

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Influence of tetraalkylammonium halides on analytical properties of universal acid-base indicator paper

Journal of Molecular Liquids ◽

10.1016/j.molliq.2017.10.019 ◽

2017 ◽

Vol 248 ◽

pp. 610-615 ◽

Cited By ~ 2

Author(s):

E.A. Reshetnyak ◽

V.M. Ostrovskaya ◽

K.V. Goloviznina ◽

N.N. Kamneva

Keyword(s):

Acid Base ◽

Analytical Properties ◽

Tetraalkylammonium Halides

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The Conductance Behavior of the Symmetrical Tetraalkylammonium Halides in Aqueous Solution at 25 and 10°1

The Journal of Physical Chemistry ◽

10.1021/j100874a008 ◽

1966 ◽

Vol 70 (2) ◽

pp. 366-374 ◽

Cited By ~ 63

Author(s):

D. Fennell Evans ◽

Robert L. Kay

Keyword(s):

Aqueous Solution ◽

Tetraalkylammonium Halides

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Conductivity and ionic association of tetraalkylammonium halides in tert-butanol–water mixture at 25 °C

Canadian Journal of Chemistry ◽

10.1139/v88-200 ◽

1988 ◽

Vol 66 (5) ◽

pp. 1223-1228 ◽

Cited By ~ 8

Author(s):

Aijaz Ahmad Ansari ◽

M. R. Islam

Keyword(s):

Ion Association ◽

Ionic Association ◽

Solvent Mixtures ◽

Water Mixture ◽

Solvent Interaction ◽

Tert Butanol ◽

Ion Association Constants ◽

Conductance Data ◽

Ion Size ◽

Tetraalkylammonium Halides

The molar conductivities of Pr4NBr, Bu4NBr, Pr4NI, and BU4NI have been measured in tert-butanol–water (t-BuOH–H2O) mixtures (61.30 ≥ D ≥ 16.50) over the maximum concentration range (2 × D3 × 10−7 mol dm−3) along with the densities and viscosities of the solvent mixtures at 25 °C. The conductance data have been analysed by using the Fuoss-1978 (F78) conductance equation and the results compared with the values obtained from the Justice (J), Pitt's (P), and Fuoss–Onsager–Skinner (FOS) equations. Molar conductivities at infinite dilution (Λ0), the thermodynamic ion association constants (KA) and the distance or ion-size parameters (R0 or a0) are evaluated from these data. The F78 equation fitted the data better and yielded KA and R values which are in accord with the ion-association theories. The interpretation of these parameters is discussed to provide some insight on the magnitude of the ionic association and the ion–solvent interaction.

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