Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative

Merve Zurnacı

doi:10.31466/kfbd.1617959

TR EN

Yeni Sentezlenen Floresan Schiff Bazı Türevinin Fotokarakterizasyonu ve pH Algılama Özellikleri

Abstract

pH sensörlerinin geliştirilmesinde, farklı, yüksek hassasiyet ve hızlı tepki floresan malzemelerin tasarımı ve sentezi çok önemlidir. Bu çalışmada, yeni sentezlenen fenantroimidazol içeren 1,3,4-tiyadiazol türevinin (PHT1) etanolde 3,5-ditertbütilsalisilaldehit (1:1) ile kondenzasyon reaksiyonu ile yeni bir pH-duyarlı Schiff bazı ligandı (PHS1) sentezlendi. Moleküler yapı, yapısal karakterizasyon yöntemleri ile doğrulandı. PHS1'in absorpsiyon ve floresan özellikleri, fotokarakterizasyon özelliklerini belirlemek için DMSO'da incelendi. Daha sonra, PHS1 floresan pH sensörü olarak araştırıldı. PHS1'in değişen pH'ta (pH=2,0, 4,0, 6,0, 8,0, 10,0 ve 12,0'da) UV absorpsiyon ve emisyon çalışmaları Britton-Robinson tamponunda belirlendi. pH 2,0'de 345 nm'de kaydedilen emilim dalga boyu, pH arttıkça batokromik etki gösterdi (pH= 4,0'da; 6,0 ve 8,0). pH 10,0 ve 12,0'de, PHS1 357 nm'de iki emilim tepe noktası ve 405 nm'de yeni bir düşük enerjili emilim bandı gösterdi. PHS1'in floresan spektrumu pH=2,0-12,0 arasında 439 nm’den 473 nm’ye artan bir dalga boyu ile kırmızıya kayma gösterdi. Bu sonuçlar PHS1'in asidik ve bazik ortamlardaki pH değişimine duyarlı olduğunu gösterdi.

Keywords

Schiff Bazı Türevi, pH Sensörü, Fotokarakterizasyon, UV-Vis absorpsiyonu, Floresans

Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative

Abstract

Design and synthesis of different, highly sensitive and fast response fluorescent materials are very important in the development of pH sensors. In this study, a new pH-sensitive Schiff-base ligand (PHS1) was synthesized by the condensation reaction of newly synthesized 1,3,4-thiadiazole derivative containing phenanthroimidazole (PHT1) with 3,5-ditertbutylsalicylaldehyde (1:1) in ethanol. The molecular structure was confirmed by structural characterization methods. The absorption and fluorescence properties of PHS1 were investigated in DMSO to determine the photocharacterization properties. Then, PHS1 was investigated as a fluorescent pH sensor. UV absorption and emission studies of PHS1 with varying pH (at pH=2.0, 4.0, 6.0, 8.0, 10.0 and 12.0) were determined in Britton-Robinson buffer. The absorption wavelength recorded at 345 nm at pH 2.0 showed bathochromic effect as pH increased (at pH= 4.0; 6.0 and 8.0). At pH 10.0 and 12.0, PHS1 showed two absorption peaks at 357 nm and a new low energy absorption band at 405 nm. The fluorescence spectrum of PHS1 showed a red shift with an increasing wavelength from 439 nm to 473 nm between pH=2.0 and 12.0. These results showed that PHS1 is sensitive to pH change in acidic and basic environments.

Keywords

Schiff Base Derivative, pH Sensor, Photocharacterization, UV-Vis absorption, Fluorescence

Ethical Statement

The author declares that this study complies with Research and Publication Ethics.

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Details

Primary Language

English

Subjects

Materials Science and Technologies

Journal Section

Research Article

Authors

Merve Zurnacı ^*
0000-0002-2928-3492
Türkiye

Publication Date

September 15, 2025

Submission Date

January 11, 2025

Acceptance Date

August 25, 2025

Published in Issue

Year 2025 Volume: 15 Number: 3

DOI

https://doi.org/10.31466/kfbd.1617959

IZ

https://izlik.org/JA95DX68WM

APA

Zurnacı, M. (2025). Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative. Karadeniz Fen Bilimleri Dergisi, 15(3), 1119-1132. https://doi.org/10.31466/kfbd.1617959

AMA

1.Zurnacı M. Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative. KFBD. 2025;15(3):1119-1132. doi:10.31466/kfbd.1617959

Chicago

Zurnacı, Merve. 2025. “Photocharacterization and PH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative”. Karadeniz Fen Bilimleri Dergisi 15 (3): 1119-32. https://doi.org/10.31466/kfbd.1617959.

EndNote

Zurnacı M (September 1, 2025) Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative. Karadeniz Fen Bilimleri Dergisi 15 3 1119–1132.

IEEE

[1]M. Zurnacı, “Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative”, KFBD, vol. 15, no. 3, pp. 1119–1132, Sept. 2025, doi: 10.31466/kfbd.1617959.

ISNAD

Zurnacı, Merve. “Photocharacterization and PH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative”. Karadeniz Fen Bilimleri Dergisi 15/3 (September 1, 2025): 1119-1132. https://doi.org/10.31466/kfbd.1617959.

JAMA

1.Zurnacı M. Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative. KFBD. 2025;15:1119–1132.

MLA

Zurnacı, Merve. “Photocharacterization and PH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative”. Karadeniz Fen Bilimleri Dergisi, vol. 15, no. 3, Sept. 2025, pp. 1119-32, doi:10.31466/kfbd.1617959.

Vancouver

1.Merve Zurnacı. Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative. KFBD. 2025 Sep. 1;15(3):1119-32. doi:10.31466/kfbd.1617959

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Yeni Sentezlenen Floresan Schiff Bazı Türevinin Fotokarakterizasyonu ve pH Algılama Özellikleri

Abstract

Keywords

Photocharacterization and pH Sensing Properties of a Novel Synthesized Fluorescent Schiff Base Derivative

Abstract

Keywords

Ethical Statement

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

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