Star-Shaped D-π-A Molecules Containing a 2,4,6-Tri(thiophen-2-yl)-1,3,5-triazine Unit: Synthesis and Two-Photon Absorption Properties
作者:Li Zou、Zijun Liu、Xiaobing Yan、Yan Liu、Yang Fu、Jun Liu、Zhenli Huang、Xingguo Chen、Jingui Qin
DOI:10.1002/ejoc.200900641
日期:2009.11
reversible or quasireversible redox behavior. Through changing the peripheral end group the optical properties can be modified. All compounds exhibit two-photon absorption activity in the range of 720–880 nm and show large two-photon absorption cross sections that are closely related to the intramolecular charge transfer and π-conjugated length of the molecule.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim
合成并表征了一系列含有2,4,6-三(噻吩-2-基)-1,3,5-三嗪单元的新型星形供体-π-受体(D-π-A)分子。1,3,5-三嗪基团作为强受电子中心,通过π共轭桥与三个给电子端基相连。由于电子受体和供体共存,这些化合物表现出可逆或准可逆的氧化还原行为。通过改变外围端基,可以改变光学特性。所有化合物都在 720-880 nm 范围内表现出双光子吸收活性,并显示出与分子内电荷转移和分子的 π 共轭长度密切相关的大双光子吸收截面。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)