Dipole–dipole interactions between the terminal groups of 1,n-diarenecarboxy alkanes, n= 1, 2, …, 6
作者:António L. Maçanita、Jorge Magalhäes、António Dias、Henrique Teles、Emilia Iglesias
DOI:10.1039/ft9908604011
日期:——
using absorption and fluorescence techniques (steady-state and time-resolved). With three series of di-1,n-arenecarboxyalkanes (arene = benzene, naphthalene and anthracene; n= 1, 2, 3, 5 and 6) and a series of 1-pyrenecarboxy, n-(N-methyl, N-phenylamino) alkanes (n= 2, 3, 4, 5, 6 and 9), it is found that model compounds such as the methyl, ethyl and hexyl esters of benzene, naphthalene, anthracene and
使用吸收和荧光技术(稳态和时间分辨)研究了双发色分子端基之间的相互作用。具有三个系列的di-1,n-芳烃基羧基烷烃(芳烃=苯,萘和蒽; n = 1,2,3,5和6)和一系列1-pyrene羧基,n-(N-甲基,N-苯基氨基)烷烃(n= 2、3、4、5、6和9),发现模型化合物(例如苯,萘,蒽和pyr的甲基,乙基和己酯)在吸收和发射光谱,摩尔比和双发色化合物方面有所不同吸收系数和辐射速率常数。这些差异随着端到端距离的六次方的平均值而减小,这归因于端基之间的偶极-偶极相互作用。端基引起最低激发单重态与较高能态的混合,并增加了介质的局部极化率。讨论了两种评估双色化合物非猝灭荧光寿命的方法。