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Sharma P, Yusuf M, Malik AK. Pyrazoline-Based Fluorescent Probe: Synthesis, Characterization, Theoretical Simulation, and Detection of Picric Acid. J Fluoresc 2024; 34:1851-1864. [PMID: 37646875 DOI: 10.1007/s10895-023-03414-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023]
Abstract
2-Pyrazoline containing benzothiazole ring 2-[1-(1,3-benzothiazol-2-yl)-5-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-3-yl]phenol (BP) have been synthesized for the effective identification of picric acid over other competing nitro compounds using fluorescence technique. The pyrazoline BP showed quenching efficiency as high as 82% comparative to other nitro aromatics. The limit of detection and limit of quantification were found to be 1.1 μM and 3.3 μM. The possible mechanism with the quenched PA detection efficiency was based on fluorescence energy transfer and photoinduced electron transfer. Moreover, the observed results were supported by the optimized structures of the compounds using the DFT/B3LYP/6-311G/LanL2DZ method. Eventually, the pyrazoline derivative BP was further utilized for natural water samples, showing recoveries in the 87.62-101.09% and RSD was less than 3%.
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Affiliation(s)
- Promila Sharma
- Department of Chemistry, Punjabi University, Patiala, 147002, India
- Department of Chemistry, RIMT University, Mandigobindgargh, 147301, India
| | - Mohamad Yusuf
- Department of Chemistry, Punjabi University, Patiala, 147002, India
| | - Ashok Kumar Malik
- Department of Chemistry, Punjabi University, Patiala, 147002, India.
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Ganguly T, Pal P, Maity D, Baitalik S. Synthesis, characterization and emission switching behaviors of styrylphenyl-conjugated Ru(II)-terpyridine complexes via aggregation and trans–cis photoisomerization. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Patra SK, Rabha M, Sen B, Aguan K, Khatua S. An aggregation induced emission active bis-heteroleptic ruthenium(II) complex for luminescence light-up detection of pyrophosphate ions. Dalton Trans 2023; 52:2592-2602. [PMID: 36734826 DOI: 10.1039/d2dt03469g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A red emissive ruthenium(II) complex 1[PF6]2 of an amino ethanol substituted 1,10-phenanthroline-based ligand (L1) has been developed and characterized by spectroscopic analysis and single-crystal X-ray diffraction. Complex 1 shows an aggregation-induced emission (AIE) enhancement and forms nano-aggregates in the poor solvent water and highly dense polyethylene glycol (PEG) media. The possible reason behind the AIE properties may be the rigidity gained through weak supramolecular interactions between neighbouring phenanthroline ligands and PF6- counterions. The AIE properties were supported by UV-vis and photoluminescence (PL) spectroscopy and dynamic light scattering (DLS) studies to substantiate the formation of nano-aggregates and to understand the morphology of the aggregated particles, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) studies were performed. Compound 1[PF6]2 was highly selective towards pyrophosphate ions (PPi) over other phosphates such as ATP, ADP, AMP and H2PO4- ions and other competitive anions in the PL spectroscopic channel in acetonitrile. The PL titrations of 1[PF6]2 with PPi in CH3CN furnished the association constant Ka = 1.08 × 104 M-1 and the detection limit was calculated as low as 1.54 μM. The PPi detection has been established through the unique H-bonding interaction, supported by 1H NMR titration. Finally, the cytotoxicity study and bioimaging were carried out for biological application. The complex shows very low cytotoxicity and good biocompatibility and is suitable for intracellular PPi imaging.
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Affiliation(s)
- Sumit Kumar Patra
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
| | - Monosh Rabha
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
| | - Bhaskar Sen
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
| | - Kripamoy Aguan
- Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong, Meghalaya 793022, India
| | - Snehadrinarayan Khatua
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, Meghalaya 793022, India.
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Xu X, Xia T, Chen XL, Hao X, Liang T, Li HR, Gong HY. Tetrabenzo[ b, de, gh, j][1,10]phenanthroline: a nitrogen-doped nanographene as a selective metal cation and proton fluorophore. NEW J CHEM 2022. [DOI: 10.1039/d2nj01861f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nitrogen-doped nanographene molecule tetrabenzo[b,de,gh,j]-[1,10]phenanthroline (TB(phen)) was generated for selective transition metal cation sensing or as a proton fluorophore.
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Affiliation(s)
- Xiao Xu
- Department of Chemistry, Renmin University of China, No. 59, Zhongguancun St., HaiDian District, Beijing, 100872, P. R. China
- College of Chemistry, Beijing Normal University, No. 19, XinJieKouWai St., HaiDian District, Beijing 100875, P. R. China
| | - Ting Xia
- Department of Chemistry, Renmin University of China, No. 59, Zhongguancun St., HaiDian District, Beijing, 100872, P. R. China
- College of Chemistry, Beijing Normal University, No. 19, XinJieKouWai St., HaiDian District, Beijing 100875, P. R. China
| | - Xu-Lang Chen
- College of Chemistry, Beijing Normal University, No. 19, XinJieKouWai St., HaiDian District, Beijing 100875, P. R. China
- College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, Hubei Normal University, Huangshi 435002, P. R. China
| | - Xiang Hao
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Tongling Liang
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Huan-Rong Li
- Department of Chemistry, Renmin University of China, No. 59, Zhongguancun St., HaiDian District, Beijing, 100872, P. R. China
| | - Han-Yuan Gong
- College of Chemistry, Beijing Normal University, No. 19, XinJieKouWai St., HaiDian District, Beijing 100875, P. R. China
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