Photochemical transformation of lipoic acid-based ligands: probing the effects of solvent, ligand structure, oxygen and pH

Literature Information

Publication Date 2018-01-12
DOI 10.1039/C7CP06350D
Impact Factor 3.676
Authors

Dinesh Mishra, Sisi Wang, Serge Michel, Goutam Palui, Naiqian Zhan, Woody Perng, Zhicheng Jin, Hedi Mattoussi


View Original

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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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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