1000391-88-7Relevant articles and documents
Two-photon absorption of a series of V-shape molecules: The influence of acceptor's strength on two-photon absorption in a noncentrosymmetric D-π-A-π-D system
Liu, Zijun,Chen, Tao,Liu, Bo,Huang, Zhen-Li,Huang, Ting,Li, Suyue,Xu, Yuxi,Qin, Jingui
experimental part, p. 4685 - 4689 (2009/09/25)
A series of V-shape D-π-A-π-D molecules were synthesized based on pyrimidine as the acceptor. The strength of the acceptor (A) in these molecules was systematically adjusted through changing the substituent group in pyrimidine. Their two-photon absorption properties were measured by two-photon induced fluorescence techniques with a mode-locked Ti:sapphire laser (100 fs, 80 MHz) in the range of 720 to 880 nm. The results indicate that the strength of the acceptor has an important influence on the two-photon absorption properties of this noncentrosymmetric D-π-A-π-D system, and a molecule with a strong acceptor is liable to display a large two-photon absorption cross-section. The Royal Society of Chemistry.