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Heterosuperbenzenos: una nueva familia de moléculas grafíticas funcionalizadas con nitrógeno

Sylvia M Draper1, Daniel J Gregg, Rethi Madathil

  • 1Department of Chemistry, SNIAMS, University of Dublin, Trinity College, Dublin 2, Ireland.

Journal of the American Chemical Society
|April 4, 2002
PubMed
Resumen

Los investigadores desarrollaron una ruta sintética versátil para nuevas moléculas C,N. Estos compuestos poliaromáticos solubles y fundidos ofrecen propiedades ópticas y electrónicas sintonizables para aplicaciones de materiales avanzados.

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Simple unsubstituted benzene has six aromatic protons, all chemically equivalent. Therefore, benzene exhibits only a singlet peak at δ 7.3 ppm in the 1H NMR spectrum. The observed shift is far downfield because the aromatic ring current strongly deshields the protons. Any substitution on the benzene ring makes the aromatic protons nonequivalent, and the protons split each other. The peak is, therefore, no longer a singlet and the splitting pattern and their associated coupling constants depend...