Abstract
A series of 2-[(9H-fluoren-2-yl)aryl]-1H-benzo[d]imidazoles 11–13 and 2,7-bis[(1H-benzo[d]imidazol-2-yl)aryl]-9H-fluorenes 14–16 containing different linking aromatic units were synthesized in good yields. Their absorption and fluorescence properties were investigated in solution and in the solid state. Most compounds possess good fluorescence-emitting ability with φ
FL values in the region of 0.31–0.99 in solution and display strong blue emission. Structure–optical behavior characteristics and further details of the electronic properties from cyclic voltammetry measurements and theoretical calculations are discussed.
摘要:一系列含有不同连接芳香基团的2-[(9H-芴-2-基)芳基]-1H-苯并[d]咪唑11-13和2,7-双[(1H-苯并[d]咪唑-2-基)芳基]-9H-芴14-16以较高产率合成。它们的吸收和荧光性质在溶液和固态中进行了研究。大多数化合物在溶液中具有良好的荧光发射能力,具有φFL值在0.31-0.99范围内,并显示出强烈的蓝色发射。讨论了结构-光学行为特性以及来自循环伏安测量和理论计算的电子性质的更多细节。