作者:Mykola Kondratenko、Andrey G. Moiseev、Dmitrii F. Perepichka
DOI:10.1039/c0jm02545c
日期:——
A series of new donorâbridgeâacceptor dyads with high chemical, electrochemical, thermal and conformational stability were synthesized by Stille coupling of oligo(3,4-ethylenedioxy)thiophenes (nEDOTs) and 1,4,5,8-naphthalenetetracarboxydiimide (NDI) building blocks. The molecular design provides for complete separation of HOMO and LUMO orbitals. A thiol functionality allows for selective anchoring of the dyads to metal electrodes, through either the donor or acceptor sides of the molecule. The optoelectronic properties of the dyads, both in solution and in self-assembled monolayers on gold, were characterized by electrochemistry, spectroelectrochemistry and UV-Vis absorption/emission spectroscopy and the results were further supported by DFT calculations.
一系列化学稳定性、电化学稳定性、热稳定性和构象稳定性高的供体-桥-受体二聚体通过斯蒂尔偶联法合成了聚(3,4-亚乙基二氧基)噻吩(nEDOTs)和1,4,5,8-萘四甲酸二酰亚胺(NDI)构建模块。分子设计实现了HOMO和LUMO轨道完全分离。硫醇功能性使得二聚体可以选择性地通过分子供体或受体侧与金属电极锚定。这些二聚体的光电性能,无论是在溶液中还是在金上的自组装单层膜中,均通过电化学、光谱电化学、紫外-可见吸收/发射光谱进行了表征,并且进一步通过DFT计算得到了支持。