4.7 Article

Lanthanide complexes of anthraquinone-1,8-disulfonate: Syntheses, structures and catalytic studies

期刊

INORGANIC CHEMISTRY COMMUNICATIONS
卷 130, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.inoche.2021.108682

关键词

Anthraquinone-1; 8-disulfonate; Lanthanide coordination compounds; Catalysts; Oxidation; Sulfoxide

资金

  1. National Natural Science Foundation of China [21671104, 22071110]
  2. Priority Academic Program Development of Jiangsu Higher Educational Institutions
  3. Jiangsu Collaborative Innovation Center of Biomedical Functional Materials

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Two isostructural series of four lanthanide coordination complexes were synthesized using anthraquinone-1,8-disulfonate as the anionic ligand, with K+ ions participating in the coordination. The complexes showed catalytic properties, with the Er3+ coordination complex exhibiting the best catalytic efficiency.
Two isostructural series of four lanthanide coordination complexes have been synthesized by hydrothermal method with anthraquinone-1,8-disulfonate as the anionic ligand. The complexes also comprise K+ ions that participate into coordination to form bimetallic complexes. The ligands in these complexes chelate to either lanthanide or K+ ions, and in some circumstance bridge the ions as well. Besides inter-/intra- molecular hydrogen bonding between the sulfonate groups and water molecules, pi-pi stacking interactions also contribute to the stabilization of the crystal packing. Investigation of the catalytic properties of the complexes indicated that they were able to promote the oxidation reaction of thioethers into sulfoxides, in which the Er3+ coordination complex exhibited the best catalytic efficiency over a wide range of substrates.

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