The complex formation of a coplanar N,N'-ethylene-bipyridinium dication and dibenzo-24-crown-8 in methanol was detected by electrochemical techniques. It is demonstrated here that a coplanar ring arrangement is not required for an efficient charge-transfer interaction between bipyridinium and crown. The much stronger complexation of methyl viologen was investigated by both electrochemical and spectral techniques. The presence of a benzene ring in the crown molecule is a condition for complex formation. The described complex exerts catalytic activity for the reduction of oxygen.
|Autori:||POSPISIL L; FUOCO R|
|Titolo:||COMPLEX-FORMATION OF METHYL VIOLOGEN AND DIQUAT WITH MACROCYCLIC ETHER DIBENZO-24-CROWN-8|
|Anno del prodotto:||1988|
|Digital Object Identifier (DOI):||10.1016/0022-0728(88)80316-4|
|Appare nelle tipologie:||1.1 Articolo in rivista|