| Autor: |
Malini Nelson, Harikrishnan Muniyasamy, Pavithra Ongi, Sankar Balakrishnan, Murugesan Sepperumal, Siva Ayyanar, Rajesh Jegathalaprathaban |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Results in Chemistry, Vol 4, Iss , Pp 100501- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2211-7156 |
| DOI: |
10.1016/j.rechem.2022.100501 |
| Popis: |
Herein, we synthesized more conjugated compounds like substituted fluorene, anthracene, and pyrene based pyrazole derivatives with good yield. All the compounds were thoroughly characterized by various spectral techniques such as NMR and mass analysis. Further, we studied the photophysical behavior of pyrazole derivatives (hybrids) upon the addition of analytes using UV–visible spectroscopic techniques. All the hybrid compounds were good colorimetric sensor for copper(II) ion. AS1, AS2 and AS3 hybrid compounds possess the limit of detections as 0.62 μM, 0.47 μM, and 4.4 μM respectively. The binding constant of the hybrid compounds AS1, AS2 and AS3 were 3.1 × 10-2 M, 3.9 × 10-2 M and 2.3 × 10-2 M respectively. The detection limit and binding constant of anthracene based hybrid AS2 was superior when compared to AS1 and AS3. Further, ligand to the metal charge transition of the probe with analytes were confirmed by density function theory (DFT) through Gaussian 09 Software. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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