Alsaee, Saleh Karama Obaid (2025) Synthesis, Characterization And Computational Studies Of Pyrene-Based Chalcone Derivatives And Their Nonlinear Optical Properties. PhD thesis, Perpustakaan Hamzah Sendut.
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Abstract
The unique properties of pyrenyl-chalcones (pchs) including strong π-delocalized electrons and a tuneable structure, offer significant potential for advanced optical technologies as a promising, cost-effective, and sustainable alternative for high-performance nonlinear optical (nlo) photonics. Herein seventeen novel pchs were synthesized through claisen-schmidt condensation and classified into four groups: halogens (1a-1d), amines (2a-2e), thiophene (3a-3d), and hydrocarbon (4a-4d) chalcones. All compounds were recrystalized via slow evaporation method and only nine compounds form single crystals. Single crystals x-ray diffraction (scxrd) analysis was performed to investigate crystallographic structure. Spectroscopy studies of the compounds were performed using fourier transform infrared (ftir), nuclear magnetic resonance (nmr), and ultraviolet-visible (uv-vis) absorption techniques. Nlo properties were evaluated using the z-scan technique and optical limiting measurements.
| Item Type: | Thesis (PhD) |
|---|---|
| Subjects: | Q Science > QC Physics > QC1 Physics (General) |
| Divisions: | Pusat Pengajian Sains Fizik (School of Physics) > Thesis |
| Depositing User: | Mr Hasmizar Mansor |
| Date Deposited: | 08 Jun 2026 07:03 |
| Last Modified: | 08 Jun 2026 07:03 |
| URI: | http://eprints.usm.my/id/eprint/64313 |
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