Self-assembly synthesis and structure of mono- and di-nuclear uranyl complex by Sheming Lu, Yanxiong Ke, Jianmin Li, Shuxi Zhou, Xintao Wu, Wenxin Du

Crystal Research and Technology

Cryst. Res. Technol. 38, 1004 (2003) - Abstract -

Self-assembly synthesis and structure of mono- and di-nuclear uranyl complex

Sheming Lu, Yanxiong Ke, Jianmin Li, Shuxi Zhou, Xintao Wu*, Wenxin Du*

Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
*State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure Matter, Chinese Academy of Science, Fuzhou,350002, P. R. China

Keywords	crystal, structure, dinuclear complex, uranyl compound, two dimension, supramolecular
PACS	61.68.+n
DOI	10.1002/crat.200310128

Mixing the malonate (mal), 4,4’-bipyridine, UO₂(CH₃COO)₂^.2H₂O in different solvent condition gets two compounds (bpy)₂(H₂bpy)[UO₂(mal)2(ì-H₂O)]^.8H₂O (1) and (H₂bpy)[UO₂(mal)₂]^.2H₂O (2). Both complexes contain seven-coordinated pentagonal bipyramidal uranium center. Crystal 1 is mononuclear structure and crystal 2 contains dinuclear [(UO₂)₂(mal)₂(μ₂-mal)₂]^4- subunit. Particularly, Crystal 2 forms the two-dimensional supramolecular topology by hydrogen bonds. The sheet constructs from two sorts of chamber, of which the larger one has two water molecular guests.

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