A b s t r a c t . Potentials of mean forces of ions in infinitely diluted solutions are calculated b y means of a general virial expansion for systems with short and long range interactions. The screened potentials are calculated by the MSA-approximation for the chain sum in the mixture model. ## I
Solvent dipolarity/polarizability (SPP) of alcoholic solvents
✍ Scribed by Catalán, Javier ;López, Vicenta ;Pérez, Pilar
- Book ID
- 102367348
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 302 KB
- Volume
- 1995
- Category
- Article
- ISSN
- 0947-3440
No coin nor oath required. For personal study only.
✦ Synopsis
Polarity scale / Solvatochromism / Alcoholic solvents The positive solvatochromism exhibited by 2-(dimethylamino)-7-nitrofluorene (DMANF) and 2-fluoro-?-nitrofluorene (FNF) was used to determine the solvent dipolarity/polarizability (SPP) of 29 saturated aliphatic alcohols, four unsaturated alcohols, an aromatic alcohol, a triol, and water. The SPP values for the alcohols lie at the top of the SPP solvent polarity scale. The SPP values for n-alkanols decreases with increasing chain length, in contrast to the behavior of n-alkanes. On the other hand, the polarity of n-alkanols, like that of n-alkanes, increases on cyclization. The polarity of m-cresol (1.0) and of 1,1,1,3,3,3-hexafluoro-2-propanol (1.007') places these solvents at the top of the SPP scale.
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