Multinanometer long phenylacetylene-end-capped poly(triacetylene) (PTA) oligomers with dendritic side chains of generation one to three have been prepared; UV–VIS measurements indicate that there is no loss of π-electron conjugation along the PTA backbone in the higher generation compounds despite distortion from planarity due to the bulky dendritic wedges.
A. P. H. J. Schenning, R. E. Martin, M. Ito, F. Diederich, A. P. H. J. Schenning, R. E. Martin, C. Boudon, J. Gisselbrecht and M. Gross, Chem. Commun., 1998, 1013 DOI: 10.1039/A801269E
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