Evidence map›Paper›PMID 42584772›Full record

ArticleJournal of fluorescence2026

Synthesis, Photophysical Investigation, and Nitroaromatic Sensing Properties of Novel Fused Pyrrolo[1,2-f]azolo[1,5-a]pteridines.

Victor V Fedotov, Semen V Aminov, Artyom O Neymash, Dmitry A Zhukov, Dmitry S Kopchuk, Ekaterina A Kudryashova, Yulia M Sayfutdinova, Denis A Gazizov, Andrey A Gruzdev, Andrey A Tebenkov and 3 more

Abstract read
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Article in Journal of fluorescence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Victor V FedotovDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia. viktor.fedotov@urfu.ru.
Semen V AminovDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Artyom O NeymashDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Dmitry A ZhukovDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Dmitry S KopchukDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Ekaterina A KudryashovaDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Yulia M SayfutdinovaDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Denis A GazizovPostovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskoi Str., 22, Ekaterinburg, 620066, Russia.
Andrey A GruzdevDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Andrey A TebenkovDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Grigoriy V ZyryanovDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Vladimir L RusinovDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.
Valery N CharushinDepartment of Organic and Biomolecular Chemistry, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Str., 19, Ekaterinburg, 620062, Russia.

Funding

Russian Science Foundation 24-73-00144
6 · The paper itself

Abstract

A novel series of pyrrolo[1,2-f]azolo[1,5-a]pteridines has been synthesized via an efficient two-step annulation strategy. The photophysical properties of the resulting polyheteroaromatic fluorophores were systematically investigated in solution, solid state, and polymer films. In THF, the compounds exhibit intense emission in the visible region with high quantum yields (Ф up to 79.9%) and lifetimes of 10-13 ns. Solvatochromic studies reveal small positive solvatochromic shifts with increasing solvent polarity, and Lippert-Mataga analysis indicates a predominantly locally-excited (LE) state. While aggregation leads to quenching in the solid state, embedding in PVA films restores emission efficiency. The electron-rich scaffold shows pronounced fluorescence quenching in the presence of nitroaromatic analytes, including picric acid (PA) and 2,4-dinitrotoluene (DNT), with Stern-Volmer constants up to 9.2 × 10

Indexed as

Azolo[1,5‑a]pteridinesFluorescenceNitroaromatic sensingPhotophysical propertiesPicric acidSynthesis

Identifiers

PMID42584772

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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.