DESIGN AND SYNTHESIS OF CARBON-RICH CHROMOPHORES VIA CLICK-TYPE REACTIONS: EXPLORATION OF LINEAR AND NONLINEAR OPTICAL PROPERTIES

Date

2026-8-13

Author

Erden, Kübra

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In recent years, organic materials with nonlinear optical (NLO) properties have attracted significant attention due to their applications in spectroscopic methodologies, the study of reaction dynamics, surface characterization, and advanced microscopy in the biomedical field. Their tunable intramolecular charge-transfer bands absorbing in the visible and near-infrared regions of the solar spectrum, significant NLO properties, and high thermal stabilities make these materials key targets. To address the rising demand in this field, the design of new molecules with enhanced properties is crucial. The [2+2] cycloaddition-retroelectrocyclization (CA-RE) reaction between electron-rich alkynes and electron-deficient alkenes represents a highly effective method for synthesizing π-conjugated donor-acceptor (D-A) type NLO materials. In this thesis, we designed and synthesized various push-pull chromophores with unique electronic properties utilizing click-type CA-RE transformations. Subsequently, the optoelectronic properties of the target molecules were comprehensively investigated through experimental studies.

Subject Keywords

Doğrusal Olmayan Optik, Triptisen, Hidrazon, [2+2] siklokatılma-retroelektrosiklizasyon, Konjuge Sistem, Nonlinear Optics, Triptycene, Hydrazone, [2+2] Cycloaddition-Retroelectrocyclization, Conjugated System

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https://hdl.handle.net/11511/120601

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Graduate School of Natural and Applied Sciences, Thesis