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http://ir.lib.ncu.edu.tw/handle/987654321/52828
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| 題名: | Roles of halide anions in the structural diversity of Zn(II) complexes containing the flexible N,N '-di(4-pyridyl)adipoamide ligand |
| 作者: | Hsu,YF;Hsu,W;Wu,CJ;Cheng,PC;Yeh,CW;Chang,WJ;Chen,JD;Wang,JC |
| 貢獻者: | 物理學系 |
| 日期: | 2010 |
| 上傳時間: | 2012-06-11 10:46:24 (UTC+8) |
| 出版者: | 國立中央大學 |
| 摘要: | A series of Zn(II) complexes with N,N'-di(4-pyridyl)adipoamide ligands, {[ZnX(2)(L)]center dot H(2)O}(infinity) (X = Cl, 1, Br, 2 and I, 3; L = N,N'-di(4-pyridyl)adipoamide), [Zn(2)X(4)(L)(2)]center dot 2DMF (X = Cl, 4 and Br, 5) and [Zn(2)I(4)(L)(2)]center dot 4DMF center dot C(4)H(10)O, 6, were prepared and their structures determined by X-ray crystallography. Complexes 1 and 2 form double-stranded helical chains which are supported by the N-H center dot center dot center dot O and O-H center dot center dot center dot X hydrogen bonds involving the guest water molecules and the halide anions, whereas 3 shows sinusoidal chains which are interlinked by the N-H center dot center dot center dot O hydrogen bonds and pi-pi interactions. Complexes 1-3 represent a unique example that the halide anions show significant effect on folding and unfolding of the Zn(II) double-stranded helical coordination polymers. Complexes 1-3 can be transformed to the corresponding complexes 4-6, which are dinuclear with 34-membered metallocycles. In these complexes, the chloride and bromide anions play the same role in the crystal structures, while the iodide anion is distinct. |
| 關聯: | CRYSTENGCOMM |
| 顯示於類別: | [物理學系] 期刊論文
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