We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A novel fluorescent sensor for Sn<sup>4+</sup> detection: Dark resonance energy transfer from silole to rhodamine.
- Authors
Wang, Xiuji; Zhang, Lijian; Zhuang, Shaoqin; Huang, Meifei; Gao, Yihua
- Abstract
A novel dark resonance energy transfer (DRET) off–on cassette SR1 was constructed by coupling a silole donor with a rhodamine acceptor. Due to the intramolecular rotations of the phenyl rings, the silole fluorophore served as a dark donor in solution state and fluorescence leakage from the donor emission could be avoided. Binding with Sn4+ ion induced the ring‐opening of the rhodamine acceptor, thus increase the overlapping between the emission spectra of the donor and absorption spectra of the acceptor. DRET was turned on and energy was transferred from the silole donor to the rhodamine acceptor. Emission from the rhodamine acceptor was achieved with a large Stokes shift up to 198 nm. The sensor showed good sensitivity and selectivity towards Sn4+ to other metal ions in methanol aqueous solution through the formation of a 1:1 complex between SR1 and Sn4+. This research provides a new approach for the development of rhodamine‐based sensors towards metal ions with large Stokes shifts.
- Subjects
FLUORESCENCE resonance energy transfer; DARK energy; STOKES shift; ABSORPTION spectra; DETECTORS; RHODAMINE B
- Publication
Applied Organometallic Chemistry, 2019, Vol 33, Issue 9, pN.PAG
- ISSN
0268-2605
- Publication type
Article
- DOI
10.1002/aoc.5067