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A novel discrete dinuclear metaUacyclic copper(Ⅱ) complex, [Cu2L2(H2O)2]·3H2O (1) has been firstly prepared where L is derived from the 1 ; 2 condensation of 2,2'-bipyridyl-3,3'-diformylhydrazide and acetone during the formation of the complex. Single-crystal X-ray diffraction analysis determines that the complex consists of dinuclear metallacyclic units [Cu2L2(H2O)2] where two metal centers are linked together through two bis(chelating) bridge ligands L to form a bizarre cavity with size 0.9417 nm× 0.4999 nm× 0.6930 nm. Interestingly, the metal coordination also creates hydrogen bond sites that further aggregate these metallacycles into a 3D supramolecular structure with 2D perpendicular hydrophilic tunnels in crystal. 相似文献
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