基于杯[4]芳烃的汞离子诱导的分子内荧光共振能量转移化学传感器。
Calix[4]arene-based, Hg2+ -induced intramolecular fluorescence resonance energy transfer chemosensor.
作者信息
Othman Amel Ben, Lee Jeong Won, Wu Jia-Sheng, Kim Jong Seung, Abidi Rym, Thuéry Pierre, Strub Jean Marc, Dorsselaer Alain Van, Vicens Jacques
机构信息
IPHC-ULP-ECPM-CNRS, 25 rue Becquerel, F-67087 Strasbourg Cédex, France.
出版信息
J Org Chem. 2007 Sep 28;72(20):7634-40. doi: 10.1021/jo071226o. Epub 2007 Sep 7.
A novel calix[4]arene-based chemosensor 1 based on Hg2+-induced fluorescence resonance energy transfer (FRET) was synthesized, and its sensing behavior toward metal ions was investigated by UV/vis and fluorescence spectroscopies. Addition of Hg2+ to a CH3CN solution of 1 gave a significantly enhanced fluorescence at approximately 575 nm via energy transfer (FRET-ON) from the pyrenyl excimer to a ring-opened rhodamine moiety. In contrast, addition of Al3+ induced a distinct increase of pyrenyl excimer emission ( approximately 475 nm), while no obvious FRET-ON phenomenon was observed. Different binding behaviors of 1 toward Hg2+ and Al3+ were also proposed for the interesting observation.
合成了一种基于Hg2+诱导荧光共振能量转移（FRET）的新型杯[4]芳烃基化学传感器1，并通过紫外/可见光谱和荧光光谱研究了其对金属离子的传感行为。向1的乙腈溶液中加入Hg2+，通过芘基准分子向开环罗丹明部分的能量转移（FRET开启），在约575 nm处产生显著增强的荧光。相比之下，加入Al3+会导致芘基准分子发射（约475 nm）明显增加，而未观察到明显的FRET开启现象。针对这一有趣的观察结果，还提出了1对Hg2+和Al3+的不同结合行为。
Zotero 插件