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Ligand Tailoring and Functional Group Fusion Strategy for Developing Photochromic Compounds: A Case Study for Pyridinedicarboxylic Acid by Gang-Mei Li; Zhen-Gang Liang; Yang Liu; Jin-Hua Li; Jie Pan; Song-De Han is a Materials Science article available to read on EtoBox.

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Hybrid photochromic materials (HPMs) can produce novel photoresponsive properties, thanks to the synergistic effect of each component. One of the widely explored ways toward a novel HPM system is the utilization of the phototriggered electron transfer (ET) mechanism. In this work, the photochromic functionality of pyridinedicarboxylic acid with the chemical formula of H ), has been first proved via the ligand tailoring and functional group fusion strategy. The photogenerated radicals derived from ET were experimentally characterized. Different from the previously investigated HPMs based on electron-deficient pyridiniums and rigid polydentate N-ligands as electron acceptors (EAs), this work exploits a new category of ligands for developing HPMs and investigating the underlying photoresponsive functionalities. Considering the large varieties of carboxylate and pyridine moieties, this study offers a general strategy for developing new HPMs and exploring the potential photoresponsive functionality via integrating the carboxylic groups as electron donors (EDs) and pyridyl groups as EAs in the single ligand.

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Author

Gang-Mei Li; Zhen-Gang Liang; Yang Liu; Jin-Hua Li; Jie Pan; Song-De Han

Publisher

American Chemical Society (ACS)

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)