Two formate-bridging coordination polymers containing dinuclear zinc(II) macrocyclic components
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- 作者：Huang ; Wei ; Hu ; Dahua ; Gou ; Shaohua ; Chantrapromma ; Suchada ; Fun ; Hoong-Kun ; Xu ; Yan ; Meng ; Qinjing
- 关键词：Crystal structure ; Zinc complexes ; Macrocyclic complexes ; Coordination polymers ; Complexes
- 刊名：Inorganica Chimica Acta
- 出版年：2003
- 出版时间：January 10, 2003
- 年：2003
- 卷：342
- 期：Complete
- 页码：9-15
- 全文大小：246 K
文摘
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, H-bonding interactions are observed in the crystal packing of 2a and 2b, which could be described as two-dimensional networks.