The binuclear cyclometallated complex [RhCl -Cl bBzlH 2 bz ] 2 [bBzlH 2 bzH D 1,3-bis(benzimidazolyl)benzene] undergoes a dichloro bridge cleavage reaction with 2,2 0 -bipyridine (bipy) or 1,10-phenanthroline (phen) in the presence of perchlorate to yield a mononuclear complex of the type RhCl OClO
27Al, 15N, 13C and 1H NMR spectra of the 2:1 aluminium(III) complexes of some azo dyes
✍ Scribed by Antonín Lyčka; Paul Rys; Peter Skrabal
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 235 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
The 27Al, 15N, 13C and 1H NMR spectra in DMSO and 27Al and 15N magic angle spinning NMR spectra of 2 : 1 aluminium(III) complexes derived from 5-chloro-2-hydroxyaniline azo coupling products with acetoacetanilide, 3-methyl-1-phenylpyrazol-5-one and 2-naphthol were measured and analysed. It was found that the aluminium atom is six-coordinated, being bound to two oxygens and the nitrogen originating from 2-hydroxy-5chloroaniline of each ligand, in an analogous fashion to 2 : 1 cobalt(III) complexes described earlier.
1998 John ( Wiley & Sons, Ltd.
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