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13C-kernresonanzspektroskopische Untersuchung der Wechselwirkung von Makrotetrolid-Antibioticamit Na+, K+, Rb+, Cs+, NH4+ und Ba2+

✍ Scribed by E. Pretsch; M. Vašák; W. Simon

Publisher
John Wiley and Sons
Year
1972
Tongue
German
Weight
373 KB
Volume
55
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

The ^13^C NMR. spectra of nonaction have been recorded at 22.6 MHz. Additivityrules, chemical shift reagents and spectra of model compounds enabled a full assignment of the lines to be made. A comparison of the spectra of the nonactin complexes with Na^+^, K^+^, Rb^+^, Cs^+^, NH~4~^+^ and Ba^2+^ showed that no H‐bridges between NH~4~^+^ and the nonactin carbonyls exist. This is corroborated by the infrared spectra of the complexes.

📜 SIMILAR VOLUMES

Untersuchung der Komplexierung von Na+,
Untersuchung der Komplexierung von Na+, K+, Ca2+ und Ba2+ mit einigen elektrisch neutralen Liganden durch Messung von 13C-chemischen Verschiebungen und Spin-Gitter-Relaxationszeiten
✍ Rolf Büchi; Ernö Pretsch 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 German ⚖ 448 KB

**Investigation of the complexing of Na^+^, K^+^, Ca^2+^ and Ba^2+^ with some uncharged ligands by ^13^C‐chemical shift and spin‐lattice relaxation time measurements** The influence of Na^+^, K^+^, Ca^2+^ and Ba^2+^ ions on ^13^C chemical shifts and on spin‐lattice relaxation times of some electric