Novel “Potentially Antiaromatic”, Acidichromic Quinonediimines with Tunable Delocalization of Their 6π-Electron Subunits

…, P Braunstein, MM Rohmer, M Bénard…

Index: Siri, Olivier; Braunstein, Pierre; Rohmer, Marie-Madeleine; Benard, Marc; Welter, Richard Journal of the American Chemical Society, 2003 , vol. 125, # 45 p. 13793 - 13803

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Citation Number: 57

Abstract

We present a novel family of “potentially antiaromatic” alkyl-substituted p- benzoquinonediimine pH-dependent chromophores. It appears from the structural data that these overall 12π-electron molecules should be better considered as constituted by two chemically connected but electronically not conjugated 6π-electron subunits. Molecule 5 appears to be the first example of two separated, conjugated, and localized 6π-electron ...