中国物理B ›› 2017, Vol. 26 ›› Issue (8): 83102-083102.doi: 10.1088/1674-1056/26/8/083102
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
Yong Zhou(周勇), Yun-Kun Wang(王云坤), Xiao-Fei Wang(王晓菲), Yu-Jin Zhang(张玉瑾), Chuan-Kui Wang(王传奎)
Yong Zhou(周勇)1, Yun-Kun Wang(王云坤)1, Xiao-Fei Wang(王晓菲)1, Yu-Jin Zhang(张玉瑾)2, Chuan-Kui Wang(王传奎)1
摘要:
Optical properties and responsive mechanisms of three newly synthesized fluorescent probes for hypochlorous acid (HOCl) are investigated by employing time-dependent density functional theory. The computational results show that the absorption and emission properties of these probes change obviously when they react with hypochlorous acid. It is found that the probe FHZ has the best performance according to the probing behavior. Moreover, the responsive mechanisms of the probes are studied by analyzing the distributions of molecular orbitals and charge transfer, which are shown as the photon-induced electron transfer (PET) for FHZ and the intramolecular charge transfer (ICT) for the other two probes. Specially, solvent effect on optical properties of the probe FHZ before and after reaction is studied within the polarizable continuum model (PCM). It is shown that performance of the probe depends crucially on the solvent polarity. Our computational results agree well with the experimental measurement, and provide information for design of efficient two-photon fluorescent probes.
中图分类号: (Ab initio calculations)