Synthesis, crystal structure and study of the crystal packing in the complex bis(4-aminopyridine-κN1)dichloridocobalt(II)

Despite the large number of reported crystalline structures of coordination complexes bearing pyridines as ligands, the relevance of π-π interactions among these hereroaromatic systems in the stabilization of their supramolecular structures and properties is not very well documented in the recent li...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Sanchez Montilva, O.C., Movilla, F., Rodriguez, M.G., Di Salvo, F.
Formato: JOUR
Materias:
4-aminopyridine
cobalt complex
crystal structure
fingerprint plots
Hirshfeld analysis
pyridine-pyridine dimer
π-π stacking
Cobalt
Cobalt compounds
Complexation
Coordination reactions
Dimers
Hydrogen bonds
Ligands
Pyridine
Single crystals
Supramolecular chemistry
Surface analysis
X ray diffraction analysis
Chlorine compounds
4-Aminopyridine
Cambridge Structural Databases
Cobalt complexes
Horizontal displacements
Single crystal x-ray diffraction
Single crystal X-ray diffraction analysis
Supramolecular structure
Crystal structure
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_20532296_v73_n5_p399_SanchezMontilva
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Despite the large number of reported crystalline structures of coordination complexes bearing pyridines as ligands, the relevance of π-π interactions among these hereroaromatic systems in the stabilization of their supramolecular structures and properties is not very well documented in the recent literature. The title compound, [CoCl2(C5H6N2)2], was obtained as bright-blue crystals suitable for single-crystal X-ray diffraction analysis from the reaction of 4-aminopyridine with cobalt(II) chloride in ethanol. The new complex was fully characterized by a variety of spectroscopic techniques and single-crystal X-ray diffraction. The crystal structure showed a tetrahedral complex stabilized mainly by bidimensional motifs constructed by π-π interactions with large horizontal displacements between the 4-aminopyridine units, and N - H...Cl hydrogen bonds. Other short contacts, such as C - H...Cl interactions, complete the three-dimensional arrangement. The supramolecular investigation was extended by statistical studies using the Cambridge Structural Database and a Hirshfeld surface analysis.A new cobalt(II) pyridine-based coordination compound showing π-π interactions with large horizontal displacements between the 4-aminopyridine ligands and N - H...Cl and C - H...Cl hydrogen bonds is reported. The molecular and supramolecular structures have been studied in detail and compared with those of similar complexes found in a search of the Cambridge Structural Database. The supramolecular structure was also investigated by Hirshfeld surface analysis. © International Union of Crystallography, 2017.

Ejemplares similares