Effect of photoswitchable azobenzene side chain on coumarins optical and chiroptical behavior

Date

2025-3-14

Author

Akdiş, Yasemin

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The conformation/configuration of the side chain in coumarin derivatives significantly impacts their features and applications, making them versatile in various scientific and industrial fields. This versatility can be attributed to their capacity to modify chemical reactivity, binding interactions, pharmacological activity, stability, solubility, and material qualities. In this context, the objective of this study was to investigate the effect of a change in the conformation/configuration of the azobenzene-containing side chain of coumarin linked to 3 rd and 7th positions. For this purpose, eight different compounds were synthesized. The fact that azobenzene derivatives can be irradiated with a specific wavelength of light to achieve photoisomerization from the trans to the cis form has allowed it to be used as a convenient and controllable side chain. To investigate the optical and chiroptical properties of the synthesized materials, we conducted a series of UV-Vis, fluorescence, and circular dichroism studies in various solvents, complemented by theoretical studies.

Subject Keywords

Azobenzene, Coumarin, Chirality, Photoisomerization

URI

https://hdl.handle.net/11511/114193

Collections

Graduate School of Natural and Applied Sciences, Thesis