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期刊论文
Two formate-bridging coordination polymers containing dinuclear zinc(II) macrocyclic components
Inorganica Chimica Acta 342(2003)9-15,-0001,():
Two coordination polymers (2a and 2b) containing dinuclear zinc(II) macrocyclic components have been unexpectedly obtained when pyrazine and 2-methylpyrazine were used to react with dinuclear zinc(II) macrocyclic complexes 1a and 1b, respectively. The X-ray crystal structural study indicated that the coordination environment around each Zn(II) atom in 2 is a five-coordinated distorted pyramid in which the apical position is occupied by a bridging formate anion, unlocalized, in an end to end fashion. The formate group acts as a bidentate bridging ligand to link two adjacent macrocyclic units forming a chain polymer. In addition, Hbonding interactions are observed in the crystal packing of 2a and 2b, which could be described as two-dimensional networks.
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