From the condensation reaction of tetracyanoethylene (C6N4, TCNE) with its radical monoanion (C6N4?-) promoted by a Lewis acid [ZnCl2, AlCl3, or V(bpy)3+2], a novel heterocyclic carbanion (C17N11-) has been synthesized and characterized by X-ray, 13C NMR, IR, and UV spectroscopy and cyclic voltammetry measurements. The crystal and molecular structure of the title anion has been determined for the tetraphenylarsonium salt, and its electronic structure and the mechanism of formation are discussed.
CONDENSATION-REACTIONS OF TETRACYANOETHYLENE AND ITS MONOANION PROMOTED BY LEWIS-ACIDS - SYNTHESIS AND CRYSTAL, MOLECULAR, AND ELECTRONIC-STRUCTURE OF A NOVEL HETEROCYCLE, THE 2,3,6,7-TETRACYANO-5-(TRICYANOETHENYLIMINO)-3H-1,4,7B-TRIAZABENZO[I,J]PENTALENIDE ION
FARES V;FLAMINI A;IMPERATORI P
1990
Abstract
From the condensation reaction of tetracyanoethylene (C6N4, TCNE) with its radical monoanion (C6N4?-) promoted by a Lewis acid [ZnCl2, AlCl3, or V(bpy)3+2], a novel heterocyclic carbanion (C17N11-) has been synthesized and characterized by X-ray, 13C NMR, IR, and UV spectroscopy and cyclic voltammetry measurements. The crystal and molecular structure of the title anion has been determined for the tetraphenylarsonium salt, and its electronic structure and the mechanism of formation are discussed.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
