新型BODIPY荧光探针的光谱性能研究

Spectroscopic Properties of a New BODIPY Fluorescence Probe

设计合成了一种新型的BODIPY近红外荧光探针分子1,并采用紫外-可见吸收光谱、荧光光谱研究了其对各种金属离子的响应.结果表明:在乙腈溶液中,采用630nm激发波长时,在所有的检测金属离子(Na+,K+,Mg2+,Ca2+,Ba2+,Cu2+,Zn2+,Cd2+,Fe2+,Pb2+,Ni 2+,Co2+,Hg2+,Ag+)中,1对Cu2+具有高度选择性;Cu2+的加入导致1的乙腈溶液在636nm处显示一个很强的红色吸收峰,在662nm处显示一个很强的荧光发射峰;同时,由于发生了显著的颜色变化,1也可以作为对Cu2+的比色传感器.

The paper designed and synthesized a new BODIPY near-infrared （NIR） fluorescent chemosensor 1, and researched on the responses of 1 to different metal ions by UV-visible absorption spectra and /luorescence spectra. The results show that among all tested metal ions （Na＋, K＋, Mg2＋, Ca2＋, Ba2＋, Cu2＋, Zn2＋, Cd2＋, Fe2＋, Pb2＋, Ni2＋, Co2＋, Hg2＋, Ag＋）, 1 displays a high selectivity for Cu2＋ upon excitation at 630 nm in CH3CN. The addition of Cu2＋ causes the appearance of a strong red absorption peak at 636 nm and a strong emission peak at 662 nm in CH3CN of 1. Meanwhile, because of the distinct color changes, 1 also can he used as the colorimetrie senor for Cu2＋.