Four novel two-photon absorption compounds (1MOBI, 2MOHA, 3BrBI, and 4BrHA), which have assembled stilbene π-bridge, different electron acceptors and donors, were synthesized conveniently via the one-step Horner-Wadsworth-Emmons reaction. Their configurations are A-π-D-π-A, D′-π-D-π-D′, A′-π-A-π-A′, and D-π-A-π-D, respectively. Their linear and nonlinear optical properties including linear absorption
通过一步霍纳-沃兹沃思-埃蒙斯反应,合成了四种新型的双光子吸收化合物(1MOBI、2MOHA、3BrBI和4BrHA),它们组装了
二苯乙烯 π 桥、不同的电子受体和供体。它们的构型分别是 A-π-D-π-A、D'-π-D-π-D'、A'-π-A-π-A' 和 D-π-A-π-D。在各种溶剂中系统地研究了它们的线性和非线性光学特性,包括线性吸收、单光子激发荧光、双光子吸收和双光子激发荧光。结果表明,具有二己基
氨基供体的化合物表现出良好的光学性能。2MOHA和4BrHA在
DMF 中表现出大的双光子吸收截面(2183 和 1737 GM),这比许多已知的
二苯乙烯衍
生物大。借助瞬态密度泛函理论计算,研究了结构与光学特性之间的关系。