Absorption and Fluorescence Spectroscopic Properties of 1- and 1,4-Silyl-Substituted Naphthalene Derivatives
作者:Hajime Maeda、Tomohiro Maeda、Kazuhiko Mizuno
DOI:10.3390/molecules17055108
日期:——
naphthalene derivatives at the 1- and 1,4-positions were synthesized and their UV absorption, fluorescence spectroscopic properties, and fluorescence lifetimes were determined. Analysis of the results shows that the introduction of silyl groups at these positions of the naphthalene chromophore/fluorophore causes shifts of the absorption maxima to longer wavelengths and increases in fluorescence intensities
合成了 1 位和 1,4 位的甲硅烷基取代萘衍生物,并测定了它们的紫外吸收、荧光光谱特性和荧光寿命。对结果的分析表明,在萘发色团/荧光团的这些位置引入甲硅烷基会导致吸收最大值向更长的波长移动并增加荧光强度。在萘 4 位和 5 位引入甲氧基和氰基也促进了吸收最大值的红移和荧光强度的增加。此外,9,10-二氰基蒽的荧光被这些萘衍生物有效猝灭,Stern-Volmer 图计算的速率常数取决于甲硅烷基的空间体积。