Comparative studies of the ability of cyclomaltohexaose, -heptaose, and -octaose to form inclusion complexes with isomers of some hydrocarbons under the conditions of gas-liquid chromatography
✍ Scribed by Danuta Sybilska; Janusz Jurczak
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 428 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0008-6215
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✦ Synopsis
Solutions of cyclomalto-hexaose (c&D), -heptaose @CD), and -octaose (yCD) in formamide were used as stationary phases in g.1.c. @CD was highly selective towards paraand meta-dialkylbenzenes, cisand trans-1 ,Zdimethylcyclohexanes, and cis-and trans-decalins. $D exhibited a substantial affinity for the &ho-isomers of dialkylbenzenes and 1,2,3-trimethylbenzene, and was the most effective in differentiating between isomeric butylbenzenes. Only aCD recognized the enantiomers of (r-and P-pinene, and optically active cis-and truns-pinane. There was no relationship between the strength of the complexation by aCD, /3CD, and $D and the ability of selective differentiation of isomeric compounds.