A Porous Carbazolic Al-MOF for Efficient Aerobic Photo-Oxidation of Sulfides into Sulfoxides under Air.

Authors :: Si X
Zhang Y
Zhang X
Pan X
Wang F
Shao X
Yao Q
Duan W
Huang X
Su J
Source :: Inorganic chemistry [Inorg Chem] 2024 Mar 11; Vol. 63 (10), pp. 4707-4715. Date of Electronic Publication: 2024 Feb 27.
Publication Year :: 2024
Abstract: A robust, microporous, and photoactive aluminum-based metal-organic framework (Al-MOF, LCU-600) has been assembled by an in situ-formed [Al <subscript>3</subscript> O(CO <subscript>2</subscript> ) <subscript>6</subscript> ] trinuclear building unit and a tritopic carbazole ligand. LCU-600 shows a high water stability and permanent porosity for N <subscript>2</subscript> and CO <subscript>2</subscript> adsorption. Notably, the incorporation of photoresponsive carbazole moieties into LCU-600 makes it a highly efficient and recyclable photocatalyst for aerobic photo-oxidation of sulfides into sulfoxides under an air atmosphere at room temperature. Mechanism investigations unveil that photogenerated holes (h <superscript>+</superscript> ), superoxide radical anion (O <subscript>2</subscript> <superscript>•-</superscript> ), and singlet oxygen ( <superscript>1</superscript> O <subscript>2</subscript> ) are critical active spices for the photo-oxidation reaction performed in an air atmosphere.

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