Synthesis, spectral properties and photobehaviour of push–pull distyrylbenzene nitro-derivatives
作者:I. Kikaš、B. Carlotti、I. Škorić、M. Šindler-Kulyk、U. Mazzucato、A. Spalletti
DOI:10.1016/j.jphotochem.2012.06.009
日期:2012.9
Six novel asymmetric 2,5-distyryl-furan, 2,5-distyryl-thiophene and 2,6-distyrylpyridine derivatives, bearing an electron acceptor (p-nitro) group at one side and an electron donor (p-methoxy or p-dimethylamino) group at the other side, have been prepared. The experimental absorption properties have been measured and compared with the computed parameters. Theoretical and experimental results indicate
六种新颖的不对称2,5-二苯乙烯基呋喃,2,5-二苯乙烯基噻吩和2,6-二苯乙烯基吡啶衍生物,在一侧带有一个电子受体(p-硝基)基团,并带有一个电子供体(p-甲氧基或p已制备了另一侧的-(二甲基氨基)基团。测量了实验吸收性能,并将其与计算参数进行了比较。理论和实验结果表明,一种构象异构体(压缩的异构体)在所有化合物中普遍存在。还将这些供体/受体二取代化合物的测量的辐射和反应弛豫性能与先前研究的未取代类似物进行了比较。施主/受主基团的存在导致基态和激发态的电荷转移特性显着增加,并导致吸收光谱的强烈红移,该效应可用于材料科学中的潜在应用。