含 4 –胺基吡啶 配位基 與金屬 鎳化合 物之鎳化合 物之鎳化合 物之成、結構及特性研究 成、結構及特性研究 成、結構及特性研究 成、結構及特性研究

Abstract

In this thesis, the structures of three nickel(II) complexes containing 4-aminopyridine, L, are discussed. The reactions of Ni(II) metal salts with L in ethanol afforded the complexes : {[NiCl(L)4]Cl}n, 1, [Ni(L)4](ClO4)2, 2, and [Ni(L)3(NO3)2] • C4H10O, 3, respectively, which were characterized by X-ray crystallography. The Ni(II) ions of 1 are coordinated by four L ligands and two chloride anions, resulting in octahedron geometries. The metal centers are also linked by the chloride anions to from 1D chins, which are further linked by the N-H---Cl hydrogen bonds to form a 3D supermolecular structure. The Ni(II) ion of 2 is coordinated by four L ligands to adopt a square planar geometry. The mononuclear molecules are linked by the N-H---O and N-H---N hydrogen bonds to from a 2D supermolecular struture. The Ni(II) ion of 3 is coordinated by three L ligands and two NO3- anions to from a square pyramidal geometry. Their mononuclear molecules are further linked by the N-H---O and N-H---N hydrogen bonds to from a 3D supermolecular struture.