Solvent effects on two-photon absorption of dialkylamino substituted distyrylbenzene chromophore |
| |
Authors: | Zhao Ke Ferrighi Lara Frediani Luca Wang Chuan-Kui Luo Yi |
| |
Institution: | Department of Theoretical Chemistry, Royal Institute of Technology, AlbaNova University Center, S-10691 Stockholm, Sweden. |
| |
Abstract: | Solvent effects on the two-photon absorption of a symmetrical diamino substituted distyrylbenzene chromophore have been studied using the density functional response theory in combination with the polarizable continuum model. It is shown that the dielectric medium has a rather small effect both on the bond length alternation and on the one-photon absorption spectrum, but it affects significantly the two-photon absorption cross section. It is found that both one- and two-photon absorptions are extremely sensitive to the planarity of the molecule, and the absorption intensity can be dramatically reduced by the conformation distortion. It has led to the conclusion that the experimentally observed anomalous solvent effect on the two-photon absorption of dialkylamino substituted distyrylbenzene chromophores cannot be attributed to the intrinsic properties of a single molecule and its interaction with solvents. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|