## Abstract The ^1^H and ^13^C NMR spectra of a series of __n__‐alkanes (C~5~‐C~32~) were measured in CCl~4~, CDCl~3~, C~6~D~6~, C~6~H~5~Cl and C~6~D~5~CD~3~ and the aromatic solvent‐induced shifts (ASIS) are discussed. The chemical shifts of the inner methylene protons show a steady downfield shif
VOLUMETRIC BEHAVIOUR OF N-METHYLFORMAMIDE–(C1–C10)ALKAN-1-OL AND N,N-DIMETHYLFORMAMIDE–(C1–C10)ALKAN-1-OL SOLVENT SYSTEMS
✍ Scribed by Begoña García; Rafael Alcalde; José M. Leal; José L. Trenzado
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 171 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0894-3230
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✦ Synopsis
Densities were measured for the N-methylformamide-(C 1 -C 10 )alkan-1-ol and N,N-dimethylformamide-(C 1 -C 10 )alkan-1-ol solvent mixtures at 298•15 K over the whole miscibility range (0 < X 1 < 1). The excess volumes (V E ), which are discussed in terms of intermolecular interactions, are negative for the mixtures with the smallest alkanols in the series and increase with increase in the chain length. Comparison with other amide-alcohol mixtures previously investigated (formamide and pyrrolidin-2-one) indicates that the excess volumes are strongly influenced by the size of the alcohol and to a lesser extent by the nature of the amide. In contrast with the amide-water system, neither the amide size nor its degree of sustitution plays an important role in the amide-alcohol systems investigated.
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v