DAPQ: Fluorescence Quenching Data for Picric Acid Detection

A synthesized pyrazolo[3,4-b]quinolinone-based fluorophore, DAPQ, was employed as a selective fluorescent chemosensor for nitroaromatic explosives. The probe demonstrated high selectivity for picric acid with a detection limit of 2 µM, and its mechanism was studied via NMR titration and DFT calculations. The dataset was authored by Remani Vasudev Sumesh and last updated on 2026-05-30.

Use Cases

• Benchmarking sensor sensitivity based on the reported 2 µM detection limit for picric acid.
• Studying hydrogen-bonding and charge-transfer interactions in fluorescence quenching mechanisms.
• Developing selective fluorescent probes for nitroaromatic explosives based on the described DAPQ structure.
• Comparing the performance of intramolecular charge transfer fluorophores for environmental sensing.

Strengths

• Detection limit for picric acid is quantified at 2 µM.
• The probe's 1:1 binding stoichiometry and high selectivity are reported.
• Mechanistic insights are supported by NMR titration and DFT calculations.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The 7.0 MB size suggests a small dataset, likely limited to supporting documentation.

Provenance

Source

figshare

Collection Method

Synthesized fluorophore characterized via NMR, FT-IR, and ESI-HRMS, with sensing performance experimentally measured.

Freshness

Last updated 2026-05-30 19:26:47; freshness should be verified.