Тип публикации: статья из журнала
Год издания: 2018
Идентификатор DOI: 10.1016/j.cplett.2018.07.058
Ключевые слова: 1,10-Phenanthroline complexes, Barbituric acid, Infrared spectroscopy, Thermal decomposition, X-ray diffraction
Аннотация: 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 NiПоказать полностью2+ 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. © 2018 Elsevier B.V.
Журнал: Chemical Physics Letters
Выпуск журнала: Vol. 708
Номера страниц: 11-16
ISSN журнала: 00092614
Издатель: Elsevier B.V.