tetraethynylsilane, was treated with tetraphenylcyclopentadienone at 300 °C under microwave irradiation to give the aromatized Diels–Alder adducts as sterically encumbered mini‐dendrimers with up to 20 benzene rings. The sterically most congested adducts display red‐shifted emission through intramolecular π–π interactions in the excited state.
在微波辐射下,于300°C用
四苯基环戊二烯酮处理了一系列
乙炔化
硅烷,包括四
乙炔基
硅烷,得到了芳香化的Diels–Alder加合物,其为空间受限的迷你树枝状聚合物,具有多达20个苯环。在空间上最拥挤的加合物通过处于激发态的分子内π-π相互作用显示出红移发射。