Synthesis, photophysical properties, and DNA-binding of novel A-π-D-π-A' two-photon absorption chromophores

被引:0
|
作者
Ma, Fei-Fei [1 ]
Cai, Zhi-Bin [1 ]
Li, Sheng-Li [2 ]
Tian, Yu-Peng [2 ]
机构
[1] Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Zhejiang, Peoples R China
[2] Anhui Univ, Anhui Prov Key Lab Funct Inorgan Mat, Dept Chem, Hefei 230039, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
Two-photon absorption; DNA-binding; A-pi-D-pi-A' compound; Structure-property relationship; ACTION CROSS-SECTIONS; PHOTODYNAMIC THERAPY; FLUORESCENCE EXCITATION; CARBAZOLE DERIVATIVES; LIMITING PROPERTIES; QUINOLINE RING; MICROSCOPY; EMISSION; PROBES; CELLS;
D O I
10.1016/j.jphotochem.2018.05.038
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Three novel two-photon absorption chromophores (1BI, 2TAZ, and 3PyB), which have trans-1,4-divinylbenzene pi-bridge, methoxy donors, and different acceptors, were synthesized. Their structures were elucidated by means of hydrogen-1 nuclear magnetic resonance, carbon-13 nuclear magnetic resonance, Fourier transform infrared spectroscopy, and high-resolution mass spectrometry. Their photophysical properties, including linear absorption, single-photon excited fluorescence, two-photon absorption, and two-photon excited fluorescence, were systematically investigated in various solvents. The structure-property relationships were studied aided with the density functional theory calculations. In addition, the absorption, single- and two-photon fluorescence spectra of 3PyB-ctDNA were examined to evaluate whether 3PyB could be used as a DNA stain. The possible interaction mechanism of 3PyB-ctDNA was also studied by the NaCl titration and the viscosity experiment. The results indicate that 3PyB may serve as a potential DNA fluorescent probe.
引用
收藏
页码:705 / 714
页数:10
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