Miao, Hao A novel dumbbell-like polyoxometalate assembled of copper(II)-disubstituted monovacant keggin polyoxoanions with a tetranuclear copper cluster. [electronic resource] - Inorganic chemistry Mar 2014 - 2757-9 p. digital Publication Type: Journal Article ISSN: 1520-510X Standard No.: 10.1021/ic5000827 doi