Two nickel(II) and cobalt(II) complexes with phenanthroline, [Ni(Phen)(H₂O)₃Br]Br (1) and [Co(Phen)₂(H₂O)₂](Hba)₂∙2H₂O (2), Phen = 1,10-phenanthroline and Hba⁻ = barbiturate anion, were synthesized and characterized by powder XRD, TGA and FT-IR. Their structures were determined by single crystal X-ray diffraction techniques. The Ni²⁺ ion is coordinated by two N atoms of Phen molecule, Br⁻ ion and three H₂O molecules forming an octahedron. Uncoordinated and coordinated Br⁻ ions are connected with water molecules by O—H∙∙∙Br intermolecular hydrogen bonds with the formation of a 2D plane network which is extended into a 3D network by π−π stacking interactions. The [Co(Phen)₂(H₂O)₂]²⁺ cation contains a six-coordinated cobalt atom chelated by two Phen ligands and two aqua ligands in the cis arrangement. N—H∙∙∙O, O—H∙∙∙O and C—H∙∙∙O intermolecular hydrogen bonds form a 3D net. N—H∙∙∙O hydrogen bonds form the infinite chains of Hba^–. In addition, coordinated Phen molecules and lattice water molecules are linked via C—H∙∙∙OW hydrogen bonds to form infinite zigzag chains. These different chains are connected by OW—H∙∙∙O hydrogen bonds. π−π interaction plays an important role in the stabilization of structures 1-2. FT-IR, TGA, the diffuse reflectance and UV-Vis spectra were also used to characterize these compounds.

两种与菲咯啉，[Ni（Phen）（H ₂ O）₃ Br] Br（1）和[Co（Phen）₂（H ₂ O）₂ ] [Hba）₂ ∙邻位的钴（II）配合物2H ₂ O（2），Phen的= 1,10-菲咯啉和HBA ^- =巴比妥阴离子，被合成和表征通过粉末XRD，TGA和FT-IR。它们的结构通过单晶X射线衍射技术确定。将Ni ²⁺离子通过Phen的分子，Br与两个N原子配位^-离子和三个H ₂水分子形成一个八面体。不协调，协调溴^-离子通过O-H∙∙∙Br分子间氢键与水分子连接，形成2D平面网络，并通过π-π堆积相互作用扩展为3D网络。[Co（Phen）₂（H ₂ O）₂ ] ²⁺阳离子含有被两个Phen配体和两个aqua配体以顺式螯合的六配位钴原子。N-H∙∙∙O，OH-H∙∙∙O和C-H∙∙∙O分子间氢键形成3D网络。N-H∙∙∙O氢键形成Hba ^–的无限链。此外，配位的Phen分子和晶格水分子通过C-H∙∙∙OW氢键形成无限的锯齿形链。这些不同的链通过OW-H∙∙∙O氢键连接。π-π相互作用在结构的稳定化中起重要作用1 - 2。FT-IR，TGA，漫反射率和UV-Vis光谱也用于表征这些化合物。