Multipodal arrangement of push–pull chromophores: a fundamental parameter affecting their electronic and optical properties
作者:M. Klikar、I. V. Kityk、D. Kulwas、T. Mikysek、O. Pytela、F. Bureš
DOI:10.1039/c6nj02994a
日期:——
fundamental properties of 24 push–pull chromophores were investigated by differential scanning calorimetry, electrochemistry, one-photon absorption spectroscopy, photoinduced piezooptics, and were supported by DFT calculations. Thorough structure–property relationships were elucidated, while a significant influence of the structural arrangement/branching on the electronic and optical properties has been
已经准备了一系列具有线性,四极和三脚架排列的模型推挽分子,一个取代的氨基供体,两个受体和一个部分扩展的π系统。两个外围电子受体,即N,N使用了'-二丁基巴比妥酸和双氰基乙烯基。通过差示扫描量热法,电化学,单光子吸收光谱法,光致压电技术研究了24种推挽发色团的基本性质,并得到DFT计算的支持。阐明了彻底的结构-性质关系,同时揭示了结构排列/分支对电子和光学性质的重大影响。推挽式分子的基本光电特性受其排列方式(线性/四极/三脚架),外围受体的附着,π系统的延伸和平面化以及辅助N取代基的类型的影响。