their absorption spectra remained very similar to those of the constituting monomers. The dimers displayed greatly reduced fluorescence when compared to the monomers, suggesting that there is a significant interaction of the two azarene units in the excited state. Preliminary investigations showed that the dimers are attractive for application as acceptors in organic photovoltaic because they significantly
制备了Binaphthyl-3,3',4,4'-四酮并与不同的双(
TIPS-
乙炔基)-取代的(
TIPS =
三异丙基硅烷)芳族二胺偶联,形成了二聚苯并-稠合的氮杂并烷单键。分子的两半相对于彼此高度扭曲,并且在基态下显示出有限的电子相互作用,因为它们的吸收光谱仍然与构成单体的吸收光谱非常相似。当与单体相比时,二聚体显示出大大降低的荧光,表明在激发态下,两个azarene单元之间存在显着的相互作用。初步研究表明,由于二聚体明显优于其单体对应物,因此在有机光伏中用作受体是很有吸引力的。