ISSN:
0947-3440
Schlagwort(e):
Polarity scale
;
Solvatochromism
;
Alcoholic solvents
;
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The positive solvatochromism exhibited by 2-(dimethylamino)-7-nitrofluorene (DMANF) and 2-fluoro-7-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.
Zusätzliches Material:
1 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/jlac.1995199505116
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