Structural and Solvent Effects on the Photophysical Behavior of Pyridyl-Substituted 1,3,4-Oxadiazole Derivatives.

Simone da Silva Simões, Mário Sérgio Silva Oliveira, Ricardo Luiz Longo, Eduardo Henrique Lago Falcão

Abstract read

In one paragraph

Article in Journal of fluorescence, 2025. 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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0citing papers in PubMed

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Simone da Silva SimõesDepartamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, 50740- 540, Pernambuco, Brazil.

Mário Sérgio Silva OliveiraDepartamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, 50740- 540, Pernambuco, Brazil.

Ricardo Luiz LongoDepartamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, 50740- 540, Pernambuco, Brazil.

Eduardo Henrique Lago FalcãoDepartamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, 50740- 540, Pernambuco, Brazil. eduardo.lfalcao@ufpe.br.

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 142497/2018-5Conselho Nacional de Desenvolvimento Científico e Tecnológico 308000/2022-6Conselho Nacional de Desenvolvimento Científico e Tecnológico 442937/2023-7Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88882.347716/2019-01Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco APQ-1105-1.06/24

6 · The paper itself

Abstract

The photophysical properties of two pyridyl isomers of 1,3,4-oxadiazole, namely 2-(4-(dodecyloxy)phenyl)-5-(pyridin-3-yl)-1,3,4-oxadiazole (Oxa3py) and 2-(4-(dodecyloxy)phenyl)-5-(pyridin-4-yl)-1,3,4-oxadiazole (Oxa4py), were systematically investigated to elucidate the impact of molecular structure and different solvent environments on the ground and excited states. The effect of the pyridinic nitrogen position was evaluated in terms of solvatochromism, charge transfer properties, and aggregation behavior in methanol-water mixtures. Both compounds exhibit positive solvatochromism, showing a considerable bathochromic shift of 45 nm for Oxa3py and 66 nm for Oxa4py in their emission spectra obtained in carbon tetrachloride and dimethyl sulfoxide. The McRae-Bayliss model and the empirical Reichardt solvent polarity scale, E

Indexed as

1,3,4-oxadiazole derivativesIntramolecular charge-transferLuminescenceSolvatochromismTD-DFT calculations

Identifiers

PMID40853619

DOI10.1007/s10895-025-04504-7

What OpenQuestion holds

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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.