The direct electrochemical synthesis of tin, cobalt, copper, zinc, cadmium and silver 7-formyl-8-hydroxyquinoline complexes
✍ Scribed by H. E. Mabrouk; A. A. El-Asmy; M. Mounir
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 281 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0340-4285
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✦ Synopsis
Main group and transition metal complexes of 7-formyl-8-hydroxyquinoline have been synthesized by an electrochemical technique using a sacrifical anode in a non-aqueous solution of the ligand, and characterized by elemental analyses and i.r. spectra. The ligand acts as a monobasic tri-dentate chelating agent coordinating through C:N, C:O and OH groups by replacement of a proton from the latter group. The electrical conductivities of the complexes were measured at different temperatures and annealing times. Their activation energies were calculated; the value obtained for the Zn n complex lay in the range reported for semiconducting materials.