Palladium(II) complexes bearing di-(2-picolyl)amine functionalized chrysin fragments. An experimental and theoretical study

Autor: Julian Cruz-Borbolla, Jorge Lopez, J. Martín Torres-Valencia, José Manuel Vásquez-Pérez, Simplicio González-Montiel, Javier Martin-Torres, Alejandro Valdez Calderón, Diego Martínez-Otero
Rok vydání: 2017
Předmět:
Zdroj: Journal of Molecular Structure. 1145:112-120
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2017.05.076
Popis: A new series of chrysin derivatives containing the di-(2-picolyl)amine (2a–d) moiety have been designed, synthesized, and treated with PdCl2·2CH3CN allowing the preparation of new cationic Palladium(II) complexes (3a–d). Solution-phase studies by 1H NMR spectroscopy of 3a–d revealed that the protons of the methylene groups of the di(2-picolyl)amine fragment are diasterotopic. GIAO/DFT studies were performed to predict the molecular structures of 3a–d by comparing the experimental and theoretical 1H-NMR chemical shifts. The molecular structure of 3c was determined by X-ray crystallographic analysis revealing that di-(2-picolyl)amine fragment is coordinated to the palladium center in a κ3-N,N,N-tridentate fashion in an overall square-planar geometry completed with a chloride atom.
Databáze: OpenAIRE