Catalytic properties of dinuclear copper(II) complexes in the oxidation of two electron donors by dioxygen

✍ Scribed by B. Srinivas; P. S. Prakash; P. S. Zacharias

• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 323 KB
• Volume: 18
• Category: Article
• ISSN: 0340-4285
• DOI: 10.1007/bf00191123

✦ Synopsis

Dinuclear copper(II) complexes of differing magnetic and redox properties derived from various dinucleating ligands were investigated for their catalytic activity in the oxidation of 3,5-di-t-butylcatechol (3,5-DTBC) and ascorbic acid by oxygen. Poor activity was exhibited by di-#-hydroxocopper(II) complexes of 2,2'-bypyridyl, 1,10-phenanthroline and N,N,N',N'-tetramethylethylenediamine(TMEDA).

Dicopper(II) complexes of Schiff base ligands, obtained from 2,6-diformyl-4-methylphenol and diamines, are relatively less active compared with ligands derived from monoamines. The difference is explained on the basis of redox behaviour.