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Kemija u industriji : Časopis kemičara i kemijskih inženjera Hrvatske, Vol. 73 No. 1-2, 2024.

Izvorni znanstveni članak

https://doi.org/10.15255/KUI.2023.018

Substituent and Solvent Effects on the Spectral Properties of 3-Substituted Derivatives of 4-Hydroxycoumarin

Ervina Bečić orcid id orcid.org/0000-0001-6371-9504 ; Univerzitet u Sarajevu, Farmaceutski fakultet, Zmaja od Bosne 8, 71 000 Sarajevo, Bosna i Hercegovina *
Mirza Dedić orcid id orcid.org/0000-0002-4951-7516 ; Univerzitet u Sarajevu, Farmaceutski fakultet, Zmaja od Bosne 8, 71 000 Sarajevo, Bosna i Hercegovina
Belma Imamović orcid id orcid.org/0000-0002-2500-1419 ; Univerzitet u Sarajevu, Farmaceutski fakultet, Zmaja od Bosne 8, 71 000 Sarajevo, Bosna i Hercegovina
Selma Špirtović-Halilović ; Univerzitet u Sarajevu, Farmaceutski fakultet, Zmaja od Bosne 8, 71 000 Sarajevo, Bosna i Hercegovina
Elma Omeragić orcid id orcid.org/0000-0002-5996-4926 ; Univerzitet u Sarajevu, Farmaceutski fakultet, Zmaja od Bosne 8, 71 000 Sarajevo, Bosna i Hercegovina

* Dopisni autor.

Puni tekst: engleski pdf 1.893 Kb

str. 1-6

preuzimanja: 154

citiraj

Sažetak

Solvent and substitution effects on the UV/Vis spectroscopic and fluorescence behaviour of seven synthesized 3-substituted 4-hydroxycoumarin derivatives were tested. The tested compounds were dissolved in ethyl acetate, acetonitrile, and dimethyl sulfoxide. Absorption and emission spectra were recorded in the range of 200–800 nm. All tested 4-hydroxycoumarin derivatives showed good absorption in a wide range of 200–550 nm, depending on the properties of the substituents on the benzene ring of the cinnamoyl moiety and the type of solvent. In comparison to the unsubstituted analogue, compounds with an electron-donating group exhibited bathochromically shifted UV/Vis absorption and emission spectra. The highest fluorescence quantum yield was observed for compounds with dimethylamino and acetamido groups as substituents at the benzene ring. Considering that both substitution and solvent affect the absorption and emission spectra of the tested compounds, it can be concluded that judiciously selecting these parameters can improve their absorption and fluorescence properties, making them suitable for various analytical uses.

Ključne riječi

coumarin derivatives; spectral properties; fluorescence; substitution

Hrčak ID:

313286

URI

https://hrcak.srce.hr/313286

Datum izdavanja:

18.1.2024.

Podaci na drugim jezicima: hrvatski

Posjeta: 616 *