Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe3+ Ions Sensing Properties
AbstractA 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. View Full-Text
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Padghan, S.D.; Bhosale, R.S.; Bhosale, S.V.; Antolasic, F.; Al Kobaisi, M.; Bhosale, S.V. Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe3+ Ions Sensing Properties. Molecules 2017, 22, 1417.
Padghan SD, Bhosale RS, Bhosale SV, Antolasic F, Al Kobaisi M, Bhosale SV. Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe3+ Ions Sensing Properties. Molecules. 2017; 22(9):1417.Chicago/Turabian Style
Padghan, Sachin D.; Bhosale, Rajesh S.; Bhosale, Sidhanath V.; Antolasic, Frank; Al Kobaisi, Mohammad; Bhosale, Sheshanath V. 2017. "Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe3+ Ions Sensing Properties." Molecules 22, no. 9: 1417.
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