<br/>Benzoic acid (BA) is a small unit of very complex macromolecules called cDOM (chromophoric dissolved organic matter) found in sea water, at the sea surface microlayer and recently in sea spray that are good photsensitizers. These are similar to humic substances, or humic like substances (HULIS) found in ground water and in other atmospheric aerosols besides sea spray. Therefore, the investigation of the UV-vis spectra of small molecules allowed us to understand is there the reflection of these small molecules/units to the UV-vis region of more complex cDOM system. To contribute for the better understanding of optical properties of Benzoic Acid, the TDDFT calculations were combined with experimental measurements of UV-vis spectra in aqueous solution at different pH.<br/>

Experimental and theoretical study of the optical properties of benzoic acid and benzoate, for understanding complex macromolecular photosensitizers

2019 Fall National Meeting

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