## Abstract The complex Eu(btfa)~3~ (phen) (btfa=4,4,4‐trifluoro‐1‐phenyl‐1, 3‐butanedione, phen = 1,10‐phenanthroline) has been prepared and characterized by elemental analysis, IR and UV spectroscopies. The crystal and molecular structures of the complex have been determined by X‐ray diffraction
Tris-(4,4,4-trifluoro-1-(-2-thienyl)-1,3-butandiono)-europium(III) als NMR-Verschiebungsreagens
✍ Scribed by Klaus Beyer
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 183 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Die Eigenschaften von Europium thenoytrifluoroacetonat als Verschiebungsreagens werden an verschiedenen Substraten untersucht. Auf Grund seiner guten Löslichkeit ist der Komplex bei schwach komplexierenden Substraten dem Eu(DPM)~3~ überlegen.—Im ^13^C‐NMR–Spektrum von D(+)‐Campher werden die Signale von C~9~ und C~10~ zugeordnet.
📜 SIMILAR VOLUMES
The ionized molecular species obtained by electron impact and chemical ionization of the organic hydrate 2-bromo-3,3-dihydroxy-(2-thienyl)-4,4,4-trifluoro-1-butanone were analysed using the mass-analysed ion kinetic energy spectrometry method. The structure of the side chain and the position of the
## Abstract Detailed ^1^__H__‐, ^13^__C__‐, and ^31^__P__ NMR studies of 1‐__t__‐butyl‐3‐methyl‐2,4‐bis(2,4,6‐tri‐__t__‐butylphenyl)‐1,3‐diphosphacyclobutane‐2,4‐diyl reveal several unusual coupling constants together with recognition of the diastereotopicity of the compound. These new data support