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  • 期刊

Synthesis, Characterizations, and Crystal Structure of Copper(II) Complex Containing, 2, 6-Pyridinedicarboxylate and, 1, 2-Bis(4-pyridyl)ethane

2, 6-吡啶雙羧基及1, 2-雙(4-吡啶)乙烷之銅(Ⅱ)配位化合物之合成、鑑定、及其結構分析

摘要


利用水熱合成,得到雙核的銅(Ⅱ)錯合物,[Cu2(pda)2(dpe)(H2O)2]・2H2O(1)(其中pda=2,6-吡啶雙羧基,dpe=1,2-雙(4-吡啶)乙烷)。使用FTIR光譜儀以及X-Ray晶體繞射儀,測定產物晶體結構及其性質,結果顯示錯合物以銅(Ⅱ)離子為配位中心,五個配位原子為pda上的二個羧基各提供一個O原子、一個配位水分子、pda上的N原子、及dpe上的一個N原子,形成扭曲四角錐型的幾何結構。錯合物結構類似啞鈴形狀,包含兩個銅原子,兩個吡啶雙羧酸配位基和一個雙吡啶配基,以及兩個配位水分子和兩個晶格水分子。吡啶雙羧基及配位水分子間的氫鍵作用,以及吡啶環之間的π-π吸引力,此錯合物自組裝成3-D超分子化合物。

並列摘要


A novel copper(II) complex, [Cu2(pda)2(dpe)(H2O)2] ・2H2O (1) (pda =2,6-pyridinedicarboxylate, dpe = 1,2-bis(4-pyridyl)ethane), has been hydrothermally synthesized and characterized by FTIR spectroscopy and single crystal X-ray diffraction. The metal ion center is in the distorted square-pyramidal coordination environment. Oxygen atom from one water hold the axial sites, and two oxygen atoms from one pda ligand, two nitrogen atoms from one pda ligand and the dpe occupy the square planar sites. The complex 1 is in a dumbbell shape which contains two copper atoms, two pda ligands, one dpe ligand, two coordination water ligands and two lattice water molecules. In addition, the intermolecular O-H…O hydrogen-bonding and π-π stacking interactions further extend the title complex to form a 3-D structure.

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