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39K NMR spectroscopy of potassium solutions in tetrahydrofuran containing 18-crown-6. Relaxation study

✍ Scribed by Maria Sokól; Janusz Grobelny; Zbigniew J. Jedliński

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 363 KB
Volume: 28
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260281106

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✦ Synopsis

Abstract

Blue potassium solution in THF containing 18‐crown‐6 was investigated by means of ^39^K NMR spectroscopy. The presence of potassium anions and complexed potassium cations was demonstrated. Spin‐lattice and spin‐spin relaxation times were measured in the temperature range 176–295 K. An attempt was made to explain the relaxation behaviour in the system.

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Complexation of potassium cations by tet

Complexation of potassium cations by tetraglyme and 18-crown-6 as evidenced by 39K NMR spectroscopy

✍ Janusz Grobelny; Maria Sokól; Zbigniew J. Jedliński 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB

## Abstract ^39^K NMR spectroscopy was used to study a blue potassium solution in tetraglyme containing 18‐crown‐6 and in a solution without the crown ether. Direct proof of the existence of potassium anions and complexed potassium cations in both solutions has been presented.