✦ LIBER ✦
Tricyclische CuII- und NiII-Chelate aus 2,2-Bis-(2-hydroxyarylazo)-biphenyl bzw. -diphenylsulfid
✍ Scribed by G. Schetty; M. Eder
- Book ID
- 102249089
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- German
- Weight
- 443 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Tricyclic CuII and NiII chelates are produced from some Z,Z'-bis-(Z-hydroxyarylazo)-biphenyls and -diphenyl sulphides. From their electron spectra it is concluded that in the Ni complexes of the azo-biphenyl dyestuffs the central atom is coordinated in a different way (probably planar) from that in the corresponding Cu complexes. On the other hand, the valences of both metals in the azo-diphenyl sulphide complexes seem to have the same steric arrangement. This arrangement is probably the same as that of the CuII ion in the azobiphenyl dyestuffs, which could be tetrahedral.