Zhang Gang, Rominger Frank, Zschieschang Ute, Klauk Hagen, Mastalerz Michael
Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 273, 69120, Heidelberg, Germany.
College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, P. R. China.
Chemistry. 2016 Oct 10;22(42):14840-14845. doi: 10.1002/chem.201603336. Epub 2016 Aug 30.
Fused, extended π-systems such as larger acenes and heteroacenes are interesting compounds for organic thin-film transistors (TFTs). The larger the number of linearly cata-fused rings, the lower the stability of the acenes. By peri-fusion of additional rings, the stabilities can significantly be increased. Here we present a facile approach to use a diborylated dihydroanthracene as precursor to get diareno-fused perylenes in just two steps in high yields. The compounds show pronounced packing in the crystalline states by π-stacking. Promising candidates have been used to fabricate p-channel TFTs by vacuum sublimation showing field-effect mobilities up to 0.12 cm V s .
稠合的、扩展的π体系，如更大的并苯和杂并苯，是有机薄膜晶体管（TFT）中有趣的化合物。线性并环稠合环的数量越多，并苯的稳定性越低。通过额外环的周边稠合，可以显著提高稳定性。在此，我们展示了一种简便的方法，使用二硼化二氢蒽作为前体，只需两步就能高产率地得到二芳稠合苝。这些化合物在晶体状态下通过π堆积表现出明显的堆积。有前景的候选物已被用于通过真空升华制备p沟道TFT，显示出场效应迁移率高达0.12 cm² V⁻¹ s⁻¹ 。
