- 作者: 嚴佳宏, 廖芬鈴, 許拱北
- 作者服務機構: Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan, R.O.C.
- 中文摘要: The hydrothermal reaction of 2,3-pyridinedicarboxylic acid (2,3-H2pda) with a mixture of Cd(NO3)2 and Ni(NO3)2 afforded a coordination polymer, [CdNi(2,3-pda)2(H2O)3]¥ (1); in contrast, that with a mixture of Cd(NO3)2 and Zn(NO3)2 surprisingly produced a discrete molecule, trans-[Cd(3-pa)2(H2O)4] (2) (3-pa- = 3-pyridinecarboxylate). Since a direct reaction between a single metal salt, Cd(NO3)2 or Zn(NO3)2, and 3-pyridinecarboxylic acid (3-Hpa) under similar hydrothermal conditions yielded different coordination polymers containing 3-pa-, it appears that the apparently thermal decarboxylation from ligated 2,3-pda2- to 3-pa- occurs after complexation of both metal cations, Cd(II) and Zn(II). A new coordination mode, formed for 2,3-pda2- in structure 1, appears to help formation of microporous channels by piling up the observed 2D hydrogen-bonded heteropolynuclear layers. Each channel apparently consists of two interpenetrating 63 Cd(II) and Ni(II) nets.
- 英文摘要: --
- 中文關鍵字: Pyridinedicarboxylate; Pyridinecarboxylate; Coordination polymer; Structure.
- 英文關鍵字: --