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- Title
Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties.
- Authors
Padghan, Sachin D.; Bhosale, Rajesh S.; Bhosale, Sidhanath V.; Antolasic, Frank; Kobaisi, Mohammad Al; Bhosale, Sheshanath V.
- Abstract
A new pyrene-phosphonate colorimetric receptor 1 has been designed and synthesized in a one-step process via amide bond formation between pyrene butyric acid chloride and phosphonate-appended aniline. The pyrene-phosphonate receptor 1 showed aggregation-induced enhanced emission (AIEE) properties in water/acetonitrile (ACN) solutions. Dynamic light scattering (DLS) characterization revealed that the aggregates of receptor 1 at 80% water fraction have an average size of ≈142 nm. Field emission scanning electron microscopy (FE-SEM) analysis confirmed the formation of spherical aggregates upon solvent evaporation. The sensing properties of receptor 1 were investigated by UV-vis, fluorescence emission spectroscopy, and other optical methods. Among the tested metal ions, receptor 1 is capable of recognizing the Fe3+ ion selectively. The changes in spectral measurements were explained on the basis of complex formation. The composition of receptor 1 and Fe3+ ions was determined by using Job's plot and found to be 1:1. The receptor 1--Fe3+ complex showed a reversible UV-vis response in the presence of EDTA.
- Subjects
PHOSPHONATES; PYRENE; COLORIMETRIC analysis; IONS; BUTYRIC acid
- Publication
Molecules, 2017, Vol 22, Issue 9, p1417
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules22091417