A Large Manganese-doped Polyoxotitanate Nanocluster: Ti14MnO14(OH)(2)(OEt)(28)

作者：Chen Yang; Sokolow Jesse; Trzop Elzbieta; Chen Yu Sheng; Coppens Philip^*

来源：Journal of the Chinese Chemical Society, 2013, 60(7): 887-890.

DOI：10.1002/jccs.201300163

• Transition metal doping
• Polyoxotitanate
• Nanocluster
• Crystal structure
• Band gap

A large manganese-doped polyoxotitanate nanocluster, Ti14MnO14(OH)(2)(OEt)(28), has been synthesized under solvothermal conditions. Its structure is similar to previously reported Ti17O24((OPr)-Pr-i)(20), but lacks 5-fold coordinated Ti atoms which are potential binding sites for photosensitizer molecules. The Mn atom is located at the center of the Keggin structure with Ti-O bond length indicative of Mn2+, a conclusion confirmed by NEXAFS measurements. Solid-state band gap measurements of the complex show a significant decrease compared with undoped polyoxotitanate nanoclusters and anatase, indicating the potential of Mn-doping for visible light photocatalysis.

• 出版日期2013-7