title: A novel dumbbell-like polyoxometalate assembled of copper(II)-disubstituted monovacant keggin polyoxoanions with a tetranuclear copper cluster.
abstract: A dimeric Keggin polyoxometalate, [Cu(bpy)(μ2-OH)]4[(H2O)(bpy)2HPW11Cu2O39]2·2CH3CH2OH·10H2O (1), constructed from two dicopper(II)-substituted monovacant Keggin polyoxoanions bridged by a Cu4 cluster, has been hydrothermally synthesized. Magnetic analysis indicates predominantly an antiferromagnetic interaction between copper(II) centers. Compound 1 also shows very high catalytic activity for the esterification of phosphoric acid with equimolar lauryl alcohol to monoalkyl phosphate ester.
authors.affiliation: College of Chemistry and Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology , Nanjing 210009, People's Republic of China.
authors.forename: Hao
authors.initials: H
authors.lastname: Miao
authors.forename: Xiao
authors.initials: X
authors.lastname: Xu
authors.forename: Wei-Wei
authors.initials: WW
authors.lastname: Ju
authors.forename: Hong-Xiang
authors.initials: HX
authors.lastname: Wan
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.forename: Dun-Ru
authors.initials: DR
authors.lastname: Zhu
authors.forename: Yan
authors.initials: Y
authors.lastname: Xu