Publication Details (including relevant citation information):
D. Lehnherr, A.H. Murray, R. McDonald, R.R. Tykwinski, Angewandte Chemie International Edition 2010, 49, 6190-6194
π-conjugated pentacene di-, tri-, and tetramers can be synthesized by using a versatile building block in Hay homocoupling as well as Cadiot–Chodkiewicz cross-coupling reactions. This modular approach allows the evaluation of solubility, stability, and the ****–LUMO gap as a function of compound length. Long-range three-dimensional π overlap occurs in the iBu3Si-substituted pentacene dimer (see figure; n=2).