作者:Kristen Secor、Jeffrey Plante、Christopher Avetta、Timothy Glass
DOI:10.1039/b503269e
日期:——
A series of seven diamine sensors was prepared using dimers of a quinolone aldehyde chromophore. Binding to six different diamine guests was explored by a combination of NMR, absorption and fluorescence spectroscopy. It was shown that the dimeric sensors bound the diamine guests by formation of a bis-iminium ion which produced large changes in the fluorescence of the quinolone core. Issues of selectivity between guests are discussed.
采用喹诺酮醛类发色团的双聚体,制备了一系列七种二胺传感器。通过核磁共振、吸收光谱和荧光光谱的组合,探索了它们与六种不同二胺客体的结合情况。结果表明,双聚体传感器通过形成双亚胺离子结合二胺客体,从而在喹诺酮核心的荧光上产生巨大变化。文中还讨论了客体间的选择性问题。