Fluorescent properties and resonance energy transfer of 3,4-bis(2,4-difluorophenyl)-maleimide
作者:Katya P. Nacheva、William A. Maza、David Z. Myers、Frank R. Fronczek、Randy W. Larsen、Roman Manetsch
DOI:10.1039/c2ob25981h
日期:——
A fluorescent compound 3,4-bis(2,4-difluorophenyl)-maleimide 1 from the 3,4-diaryl-substituted maleimides was synthesized and determined to have a Stokes shift of 140 nm (λabs 341 nm, λem 481 nm), a high fluorescent quantum yield (Φfl 0.61) and an extinction coefficient ε(340) of 48 400 M−1 cm−1 in dichloromethane. For the first time we demonstrated the successful implementation of a 3,4-diaryl-substituted maleimide molecule as a donor component in FRET experiments.
我们从 3,4-二芳基取代的马来酰亚胺中合成了一种荧光化合物 3,4-双(2,4-二氟苯基)-马来酰亚胺 1,并确定其在二氯甲烷中的斯托克斯位移为 140 nm(λabs 341 nm,λem 481 nm),荧光量子产率高(Φfl 0.61),消光系数 ε(340) 为 48 400 M-1 cm-1。我们首次成功地在 FRET 实验中使用了 3,4-二芳基取代的马来酰亚胺分子作为供体成分。