ArticleJournal of fluorescence2025
Microwave-Assisted Synthesis of Triphenyl Amine-Based Phenyl Quinazolines: Investigation of Photophysical and Fluorescence Switching Behavior.
Article in Journal of fluorescence, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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Who cites it
2 citing papers in PubMed.
- Synthesis and Characterization of Terpyridine Derivatives as Fluorescence Probe for Selective Detection of GaJournal of fluorescence · 2026Article
- Enhancing Blood Fingerprints with Multicolored Conjugated Polymers: A Fluorescent Strategy with Python-Based Quantitative Assessment.Journal of fluorescence · 2026Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Stimuli-responsive fluorescent materials with donor-acceptor systems hold significant potential for sensing applications. This study presents the synthesis, characterization, and photophysical properties of triphenylamine-cored mono (P1), triphenylamine-cored di (P2), and tri (P3) quinazolines using microwave-assisted methods. Probes exhibit fluorescence properties in solid state and solution, with positive solvatochromism observed as solvent polarity increased from toluene to DMSO. The presence of quinazoline acts as an electron-deficient group, while triphenylamine is an electron donor. The probes exhibited reversible switching behaviour in the solution state, indicating their sensitivity to volatile trifluoroacetic acid (TFA) and triethyl amine (TEA) as confirmed by spectrophotometric and spectrofluorimetric studies. The pKa values of P1, P2 and P3 were found to be 4.00, 4.34 and 3.68 respectively and probes P1 and P2 are highly dynamic during acid-base switching behaviour. The TGA analysis reveals that probe P1 is more stable compared to P2 and P3. The photophysical and protonation mechanisms were studied through DFT/TD-DFT calculations. The acid base switching behavior was successfully defined at three different levels: solid state, solution, and Whatman filter paper loaded with probe.
Indexed as
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.