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Photochemical Transformation of Lipoic acid-based Ligands: Probing the Effects of Solvent, Ligand Structure, Oxygen and pH

Abstract

We have combined optical absorption with the Ellman’s test to identify the parameters that affect the transformation of the 5-membered dithiolanes to thiols in lipoic acid (LA) and its derivatives during UV-irradiation. We found that the nature and polarity of the solvent, the structure of the ligands, acidity of the medium and oxygen can drastically affect the amount of photogenerated thiols. These findings are highly relevant to the understanding of the photochemical transformation of this biologically relevant compound, and would benefit the increasing use of LA-based ligands for the surface functionalization of various nanomaterials.

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Publication details

The article was received on 16 Sep 2017, accepted on 11 Jan 2018 and first published on 12 Jan 2018


Article type: Communication
DOI: 10.1039/C7CP06350D
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
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    Photochemical Transformation of Lipoic acid-based Ligands: Probing the Effects of Solvent, Ligand Structure, Oxygen and pH

    D. Mishra, S. Wang, S. Michel, G. Palui, N. Zhan, W. Perng, Z. Jin and H. Mattoussi, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C7CP06350D

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