RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties
A new pyrene-phosphonate colorimetric receptor <b>1</b> 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 <b>1</b> showed aggregation-induced...
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MDPI AG
2017-08-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/22/9/1417 |
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| author | Sachin D. Padghan Rajesh S. Bhosale Sidhanath V. Bhosale Frank Antolasic Mohammad Al Kobaisi Sheshanath V. Bhosale |
| author_facet | Sachin D. Padghan Rajesh S. Bhosale Sidhanath V. Bhosale Frank Antolasic Mohammad Al Kobaisi Sheshanath V. Bhosale |
| author_sort | Sachin D. Padghan |
| collection | DOAJ |
| description | A new pyrene-phosphonate colorimetric receptor <b>1</b> 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 <b>1</b> showed aggregation-induced enhanced emission (AIEE) properties in water/acetonitrile (ACN) solutions. Dynamic light scattering (DLS) characterization revealed that the aggregates of receptor <b>1</b> 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 <b>1</b> were investigated by UV-vis, fluorescence emission spectroscopy, and other optical methods. Among the tested metal ions, receptor <b>1</b> is capable of recognizing the Fe<sup>3+</sup> ion selectively. The changes in spectral measurements were explained on the basis of complex formation. The composition of receptor <b>1</b> and Fe<sup>3+</sup> ions was determined by using Job’s plot and found to be 1:1. The receptor <b>1</b>–Fe<sup>3<b>+</b></sup> complex showed a reversible UV-vis response in the presence of EDTA. |
| format | Article |
| id | doaj-art-8c315767b16443cea270fd8ab0d0707e |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-8c315767b16443cea270fd8ab0d0707e2025-02-10T14:26:46ZengMDPI AGMolecules1420-30492017-08-01229141710.3390/molecules22091417molecules22091417RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing PropertiesSachin D. Padghan0Rajesh S. Bhosale1Sidhanath V. Bhosale2Frank Antolasic3Mohammad Al Kobaisi4Sheshanath V. Bhosale5Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, IndiaPolymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, IndiaPolymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, IndiaSchool of Science, Royal Melbourne Institute of Technology University, GPO Box 2476, Melbourne, VIC 3001, AustraliaSchool of Science, Royal Melbourne Institute of Technology University, GPO Box 2476, Melbourne, VIC 3001, AustraliaSchool of Science, Royal Melbourne Institute of Technology University, GPO Box 2476, Melbourne, VIC 3001, AustraliaA new pyrene-phosphonate colorimetric receptor <b>1</b> 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 <b>1</b> showed aggregation-induced enhanced emission (AIEE) properties in water/acetonitrile (ACN) solutions. Dynamic light scattering (DLS) characterization revealed that the aggregates of receptor <b>1</b> 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 <b>1</b> were investigated by UV-vis, fluorescence emission spectroscopy, and other optical methods. Among the tested metal ions, receptor <b>1</b> is capable of recognizing the Fe<sup>3+</sup> ion selectively. The changes in spectral measurements were explained on the basis of complex formation. The composition of receptor <b>1</b> and Fe<sup>3+</sup> ions was determined by using Job’s plot and found to be 1:1. The receptor <b>1</b>–Fe<sup>3<b>+</b></sup> complex showed a reversible UV-vis response in the presence of EDTA.https://www.mdpi.com/1420-3049/22/9/1417pyrene-phosphonateAIEEoptical and colorimetricfluorescencesensor of Fe<sup>3+</sup> ions |
| spellingShingle | Sachin D. Padghan Rajesh S. Bhosale Sidhanath V. Bhosale Frank Antolasic Mohammad Al Kobaisi Sheshanath V. Bhosale RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties Molecules pyrene-phosphonate AIEE optical and colorimetric fluorescence sensor of Fe<sup>3+</sup> ions |
| title | RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties |
| title_full | RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties |
| title_fullStr | RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties |
| title_full_unstemmed | RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties |
| title_short | RETRACTED: Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe<sup>3+</sup> Ions Sensing Properties |
| title_sort | retracted pyrene phosphonate conjugate aggregation induced enhanced emission and selective fe sup 3 sup ions sensing properties |
| topic | pyrene-phosphonate AIEE optical and colorimetric fluorescence sensor of Fe<sup>3+</sup> ions |
| url | https://www.mdpi.com/1420-3049/22/9/1417 |
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