Self-association of 1,2-diols Apparent heat capacities of 1,2-diols in n-heptaneand carbon tetrachloride

1997 ◽  
Vol 93 (21) ◽  
pp. 3781-3789 ◽  
Author(s):  
Dara Salcedo ◽  
Miguel Costas
Keyword(s):  
Carbon Tetrachloride ◽  
Heat Capacities ◽  
Self Association

Heat capacities, self-association and complex formation in alcohol–ester systems

1991 ◽  
Vol 87 (8) ◽  
pp. 1133-1139 ◽  
Author(s):  
Dinkar D. Deshpande ◽  
Donald Patterson ◽  
Lina Andreoli-Ball ◽  
Miguel Costas ◽  
Luis M. Trejo
Keyword(s):  
Complex Formation ◽  
Heat Capacities ◽  
Self Association

Molecular Association of Hydrogen Bonding Solutes, o-, m-, and p-Cresol, in Carbon Tetrachloride

1974 ◽  
Vol 52 (4) ◽  
pp. 653-660 ◽  
Author(s):  
Earl M. Woolley ◽  
Dennis S. Rushforth
Keyword(s):  
Hydrogen Bonding ◽  
Carbon Tetrachloride ◽  
Least Squares ◽  
Molecular Association ◽  
Intermolecular Hydrogen Bonding ◽  
Heats Of Dilution ◽  
Self Association

The intermolecular hydrogen-bonding self-association of the three cresols in CCl4 solutions at 25 °C has been investigated by calorimetric means. Calorimetrically determined heats of dilution of each of the cresols in anhydrous CCl4 are interpreted in terms of two different models: (i) dimerization and trimerization self-association reactions, and (ii) dimerization followed by stepwise polymerization self-association reactions. Values of K, ΔH0, and ΔS0 for these reactions are calculated using least-squares and other methods. Results show that o-cresol is clearly less associated in anhydrous CCl4 solution at 25 °C than either m- or p-cresol. Values of K2 and K3 (both based on molar concentrations of solutes) and ΔH20and ΔH30 (kcal) for the reactions [Formula: see text] respectively, are o-cresol: 0.7, 1.3,−3.4,−12.5; m-cresol: 0.8, 5.0,−5.0,−13.6; p-cresol: 0.35, 6.5,−5.5,−13.4. Values of K2 and Ks (both based on molar concentrations of solutes) and ΔH20 and ΔHs0 (kcal) for the reactions [Formula: see text] (all n > 2 with same Ks and ΔHS0), respectively, are o-cresol: 0.7, 1.6, −4.2, −4.5; m-cresol: 1.2, 4.0, −5.0, −4.3; p-cresol: 1.0, 7.0, −3.3, −3.5.

Self-Association of Cholesterol in Carbon Tetrachloride

1979 ◽  
Vol 34 (3) ◽  
pp. 369-374 ◽  
Author(s):  
M. Kunst ◽  
D. van Duijn ◽  
P. Bordewijk
Keyword(s):  
Dipole Moment ◽  
Carbon Tetrachloride ◽  
Concentration Dependence ◽  
Equilibrium Constants ◽  
Molar Fraction ◽  
Dilute Solutions ◽  
Dielectric Parameters ◽  
Moment Equilibrium ◽  
Self Association

Abstract Analysis of infrared hydroxyl multimer absorbances of dilute solutions of cholesterol in carbon tetrachloride as a function of the monomer absorbance strongly favours the interpretation of the association of this alcohol with a monomer-dimer-tetramer model up to a molar fraction of 0.012. This model also explains very well the concentration dependence of the apparent dipole moment. Equilibrium constants and dielectric parameters have been determined. Suggestions about the structure of the various associates are made.

1. Self-association and hydration of phenol in carbon tetrachloride

1965 ◽  
pp. 1 ◽  
Author(s):  
James R. Johnson ◽  
Sherril D. Christian ◽  
Harold E. Affsprung
Keyword(s):  
Carbon Tetrachloride ◽  
Self Association

NMR Study of Hydrogen Bonding Association of some Sterically Hindered Alcohols in Carbon Tetrachloride, Chloroform and Cyclohexane

2002 ◽  
Vol 216 (7) ◽  
Author(s):  
W.-C. Luo ◽  
J.-L. Lay ◽  
Jenn-Shing Chen
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Hydrogen Bonding ◽  
Carbon Tetrachloride ◽  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
Nuclear Magnetic Resonance Spectroscopy ◽  
The Self ◽  
Resonance Spectroscopy ◽  
Nmr Study ◽  
Self Association

The self-association (dimerization) due to hydrogen bonding for some alcohols with bulky side chains was investigated by nuclear magnetic resonance spectroscopy. The systems studied include 2,4-dimethyl-3-pentanol or 3-methyl-3-pentanol in [

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