Preparation and characterization of photo-, thermo-, and solvatochromic materials containing benzospiropyran

TL;DRAbstract

The photo-, thermo- and solvatochromic behavior of spiropyran derivatives in various media were investigated by spectroscopic methods in this thesis. It was found that the molecular environment controlled the BSP-MC equilibrium, solvatochromic shift and specific interactions with itself (aggregation) and with guest ions (metal ions).
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\nA benzospiropyran derivative was immobilized via a diamino linker to a polymer support for chemical sensing applications. This is the first demonstration of the cycling of covalently immobilised spiropyran on a solid support to merocyanine for repeat detection of metal ions. These results demonstrate a polymer-modified surface that can adapt its hctionality through reversible molecular rearrangements triggered by external stimuli (photons).
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\nThe photo- thermo and solvatochromic behavior of spiropyran was studied in a selection of ionic liquids. Our results clearly show that the kinetics and thermodynamics of the process are sensiti

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